[flexcoders] Location of Spring and LCDS - SpringFactory etc?
Hi all, We're begining a transition from pure DataManagementServices/Hibernate to running our own DAOs/RPCs configured with spring. Can someone point me to (or provide for everyone) the files for Spring support in LCDS? I've searched around on flexcoders, and seen several posts discussing a SpringFactory for use with Flex (remoting and data management). I've also seen a couple of I'll send updated SpringFactory code for some work-arounds. I was also able to find one spring support package on the flex exchange here: http://www.adobe.com/cfusion/exchange/index.cfm?event=extensionDetailextid=1035406 However, this package is said to be compatible with FDS 2.0.1. Isn't there a new version compatible with the latest LCDS (2.5.1)? Thanks in advance, Parker Whirlow
[flexcoders] Channel.Polling.Error - Using DataService with AtuoCommit and AtutoSync
Hi I seem to be getting intermittent faults from my data service. Trying the same thing again seems to have it go away. Using DataService w/ HibernateAssembler. AutoSync and AutoCommit are enabled. Destination is configured with the default 'my-polling-amf' channel. see the fault below: [FaultEvent fault=[RPC Fault faultString=error faultCode=Channel.Polling.Error faultDetail=null] messageId=D716AD65-B6ED-EDDD-89A8-342B42108D28 type=fault bubbles=false cancelable=true eventPhase=2] Any ideas? Is there a way to retry the operation from the fault handler? thanks, Parker Whirlow
[flexcoders] Fault events with DataService - Retry operation?
Hi all, I am not sure if it is JUST the network (WAN/Internet), or if there are strange inconsistencies with FDS and the DataService, but here and there sometimes I get back Fault events. I get faultCode:=Channel.Polling.Error faultDetail:null and faultCode=Channel.Call.Failed faultDetail=NetConnection.Call.Failed: HTTP: Failed inconsistently. Is there a way to handle these faults, and tell the DataService to retry? even better is an auto-retry counter...? Any info on those errors and what could cause them, being that they're inconsistent? thanks, Parker Whirlow
[flexcoders] Re: Setting DataGridColumn width programmatically visibleColumns
So, I'm finding that this is really a nasty bug, and I haven't found a
good work-around.
I've tried searching through the DataGrid.columnMap to ensure there's
renderers for my column before setting the width. This works until you
scroll horizontally. The columns that used to be visible, but aren't
anymore still have renderers in columnMap... and as soon as you set
the width on a non-visible column, bam... null reference error.
I've submitted a bug report on Flex 2.0.1 through the normal feedback
channel.
Still looking for some kind of work-around if anyone knows of one, I
really need something!
thanks,
PW
--- In flexcoders@yahoogroups.com, parkerwhirlow [EMAIL PROTECTED]
wrote:
Hi,
I have an issue where I've created a special routine to calculate the
size of the columns in my DataGrid subclass.
The problem I have is that I have several data grids that interact
with eachother, and not all columns are visible (or were ever visible).
When I programmatically set the width of the columns, if the columns
have not been shown (are not in the 'visibleColumns' array) I get a
null pointer error. See the stack trace below.
Since I can't get to the 'visibleColumns' collection, how can I set
the 'desired' widths of my columns without running into this error?
Also, looking at the actual code, they tried to check for some timing
on whether they had calc'd columns. But they don't check if the column
you're setting the width on is in the 'visibleColumns' list. This
seems like a relatively simple defect to fix... It should fall into
that upper if block, and set the width on the column itself, right?
thanks,
Parker Whirlow
__
TypeError: Error #1010: A term is undefined and has no properties.
at
mx.controls::DataGrid/http://www.adobe.com/2006/flex/mx/internal::resizeColumn()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:2462]
at mx.controls.dataGridClasses::DataGridColumn/set
width()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\dataGridClasses\DataGridColumn.as:1048]
at
company.visualizations::MyGrid/company.visualizations:MyGrid::setDefaultColumnWidths()[C:\work\Flex\src\company\visualizations\MyGrid.as:1720]
_
source at DataGrid:2462
// there's a window of time before we calc columnsizes
// that someone can set width in AS
if (!visibleColumns || visibleColumns.length == 0)
{
columns[col].setWidth(w);
return;
}
if (w visibleColumns[col].minWidth) // ERROR IS HERE
w = visibleColumns[col].minWidth;
[flexcoders] Re: Setting DataGridColumn width programmatically visibleColumns
Ben,
No problem. I appreciate the thought and the response.
The column's 'visible' property only states whether the column should
be shown, not whether it is currently visible on the screen (I.E. a
column that is scrolled off the edge of the data grid is not visible
even though it's 'visible' property is true)
I believe the column's visible property relates to the DataGrid's
private list 'displayableColumns'
/**
* @private
* Columns with visible=true
*/
private var displayableColumns:Array;
and the DataGrid's 'visibleColumns' list are ones that are actually
visible to the user.
Anyway, I think I have a relatively OK workaround for now, I just put
a try/catch block around the call, and ignore any errors... its
working so far. =)
thanks,
PW
--- In flexcoders@yahoogroups.com, ben.clinkinbeard
[EMAIL PROTECTED] wrote:
Sorry if I am being really dense but I take it you can't just check
the visible property of the column?
Ben
--- In flexcoders@yahoogroups.com, parkerwhirlow parkerwhirlow@
wrote:
So, I'm finding that this is really a nasty bug, and I haven't found a
good work-around.
I've tried searching through the DataGrid.columnMap to ensure there's
renderers for my column before setting the width. This works until you
scroll horizontally. The columns that used to be visible, but aren't
anymore still have renderers in columnMap... and as soon as you set
the width on a non-visible column, bam... null reference error.
I've submitted a bug report on Flex 2.0.1 through the normal feedback
channel.
Still looking for some kind of work-around if anyone knows of one, I
really need something!
thanks,
PW
--- In flexcoders@yahoogroups.com, parkerwhirlow parkerwhirlow@
wrote:
Hi,
I have an issue where I've created a special routine to
calculate the
size of the columns in my DataGrid subclass.
The problem I have is that I have several data grids that interact
with eachother, and not all columns are visible (or were ever
visible).
When I programmatically set the width of the columns, if the columns
have not been shown (are not in the 'visibleColumns' array) I get a
null pointer error. See the stack trace below.
Since I can't get to the 'visibleColumns' collection, how can I set
the 'desired' widths of my columns without running into this error?
Also, looking at the actual code, they tried to check for some
timing
on whether they had calc'd columns. But they don't check if the
column
you're setting the width on is in the 'visibleColumns' list. This
seems like a relatively simple defect to fix... It should fall into
that upper if block, and set the width on the column itself, right?
thanks,
Parker Whirlow
__
TypeError: Error #1010: A term is undefined and has no properties.
at
mx.controls::DataGrid/http://www.adobe.com/2006/flex/mx/internal::resizeColumn()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:2462]
at mx.controls.dataGridClasses::DataGridColumn/set
width()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\dataGridClasses\DataGridColumn.as:1048]
at
company.visualizations::MyGrid/company.visualizations:MyGrid::setDefaultColumnWidths()[C:\work\Flex\src\company\visualizations\MyGrid.as:1720]
_
source at DataGrid:2462
// there's a window of time before we calc columnsizes
// that someone can set width in AS
if (!visibleColumns || visibleColumns.length == 0)
{
columns[col].setWidth(w);
return;
}
if (w visibleColumns[col].minWidth) // ERROR IS HERE
w = visibleColumns[col].minWidth;
[flexcoders] Setting DataGridColumn width programmatically visibleColumns
Hi,
I have an issue where I've created a special routine to calculate the
size of the columns in my DataGrid subclass.
The problem I have is that I have several data grids that interact
with eachother, and not all columns are visible (or were ever visible).
When I programmatically set the width of the columns, if the columns
have not been shown (are not in the 'visibleColumns' array) I get a
null pointer error. See the stack trace below.
Since I can't get to the 'visibleColumns' collection, how can I set
the 'desired' widths of my columns without running into this error?
Also, looking at the actual code, they tried to check for some timing
on whether they had calc'd columns. But they don't check if the column
you're setting the width on is in the 'visibleColumns' list. This
seems like a relatively simple defect to fix... It should fall into
that upper if block, and set the width on the column itself, right?
thanks,
Parker Whirlow
__
TypeError: Error #1010: A term is undefined and has no properties.
at
mx.controls::DataGrid/http://www.adobe.com/2006/flex/mx/internal::resizeColumn()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:2462]
at mx.controls.dataGridClasses::DataGridColumn/set
width()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\dataGridClasses\DataGridColumn.as:1048]
at
company.visualizations::MyGrid/company.visualizations:MyGrid::setDefaultColumnWidths()[C:\work\Flex\src\company\visualizations\MyGrid.as:1720]
_
source at DataGrid:2462
// there's a window of time before we calc columnsizes
// that someone can set width in AS
if (!visibleColumns || visibleColumns.length == 0)
{
columns[col].setWidth(w);
return;
}
if (w visibleColumns[col].minWidth) // ERROR IS HERE
w = visibleColumns[col].minWidth;
[flexcoders] Re: Odd behavior when calling DataService.getItem for multiple items.
Thanks Jeff this worked.
This use of toString for generating a key, is this documented
somewhere that I missed? If not, I'd like to request that a small
paragraph be added that describes the requirements/behaviors of
identity properties when used with Data-Management... are there other
places I should be aware of that use toString as a key?
thanks,
PW
--- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote:
For the AS class, try implementing a toString():String method which
returns a unique identity from the composite id object. Data
management uses this to build a key to store the items in the cache.
Jeff
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of parkerwhirlow
Sent: Thursday, April 12, 2007 7:29 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Odd behavior when calling DataService.getItem for
multiple items.
I'm using the same DataService repeatedly in my Cairngorm delegates,
and calling getItem() as needed to get items.
I'm using the call token to add a responder, and the strange thing is
that in the result method of the responder, the event.result property
is the SAME instance each time with the new object properties in it.
Somehow the instance returned in event.result is re-used across calls
to getItem. This causes all my items to end up being the same one!
(whatever the most recent one fetched is)
One thing that may be affecting this (not sure though) is that the ID
property of my item (and DataService destination) is a typed object.
This is because the item has a composite primary key, and I've
implemented the recommended Components as composite identifiers
method as advocated by the Hibernate guide:
http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#component
s-compositeid
http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#componen
ts-compositeid
I have set the destination ID type attribute as follows also:
metadata
identity property=id type=app.preferences.PrefIDVO/
/metadata
Looking at the event.message.body[0], I can see a different (unique)
instance of the item... and strange thing is, the event.result
instance and the event.message.body[0] instance share the SAME
instance of the id property!
Any ideas? See sample code below
thanks,
Parker Whirlow
item delegate_
public function getItemPreference(itemID:String):AsyncToken
{
var service:DataService =
DataServiceManager.getInstance().getService(DataServiceManager.CONFIG_SE
RVICE_PREF);
// create the ID object (ID is combination of user and item)
var iid:PrefIDVO = new PrefIDVO();
iid.userID = SecurityManager.getInstance().userPrincipal;
iid.itemID = itemID;
var call:AsyncToken = service.getItem({ id: iid });
call.iid=iid;
call.addResponder(responder);
return call;
}
item responder_
protected function getItemPrefResult(event:ResultEvent):void
{
// get the item pref. (this is always the same object instance!)
// why does this same instance keep getting updated
// with the newly fetched object properties?!?
var pref:PrefVO = event.result as PrefVO;
...
}
[flexcoders] Odd behavior when calling DataService.getItem for multiple items.
I'm using the same DataService repeatedly in my Cairngorm delegates,
and calling getItem() as needed to get items.
I'm using the call token to add a responder, and the strange thing is
that in the result method of the responder, the event.result property
is the SAME instance each time with the new object properties in it.
Somehow the instance returned in event.result is re-used across calls
to getItem. This causes all my items to end up being the same one!
(whatever the most recent one fetched is)
One thing that may be affecting this (not sure though) is that the ID
property of my item (and DataService destination) is a typed object.
This is because the item has a composite primary key, and I've
implemented the recommended Components as composite identifiers
method as advocated by the Hibernate guide:
http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#components-compositeid
I have set the destination ID type attribute as follows also:
metadata
identity property=id type=app.preferences.PrefIDVO/
/metadata
Looking at the event.message.body[0], I can see a different (unique)
instance of the item... and strange thing is, the event.result
instance and the event.message.body[0] instance share the SAME
instance of the id property!
Any ideas? See sample code below
thanks,
Parker Whirlow
item delegate_
public function getItemPreference(itemID:String):AsyncToken
{
var service:DataService =
DataServiceManager.getInstance().getService(DataServiceManager.CONFIG_SERVICE_PREF);
// create the ID object (ID is combination of user and item)
var iid:PrefIDVO = new PrefIDVO();
iid.userID = SecurityManager.getInstance().userPrincipal;
iid.itemID = itemID;
var call:AsyncToken = service.getItem({ id: iid });
call.iid=iid;
call.addResponder(responder);
return call;
}
item responder_
protected function getItemPrefResult(event:ResultEvent):void
{
// get the item pref. (this is always the same object instance!)
// why does this same instance keep getting updated
// with the newly fetched object properties?!?
var pref:PrefVO = event.result as PrefVO;
...
}
[flexcoders] Chart Series - formatDataTip inconsistent visibility
I started making some application specific tweaks to the chart series dataTips, and it worked beautifully for ColumnSet (override the protected function formatDataTip), but then I soon realized that only the SET series (subclasses of StackedSeries) have that function as protected. It's actually private on all the standard series. Is there a reason that it's private on the normal series, but protected on the series sets? I am thinking as a workaround, I'll have to do something like this. what do you think? Use the chart's dataTipFunction, and call back into the series (via hitData.element) to a slightly differently named function (myFormatDataTip) defined on the series subclass. I don't like this because then I have to make sure the myFormatDataTip function exists before calling it, and I make assumption about the signature, but I think that would work... comments? thanks, PW
[flexcoders] Re: Chart Series - formatDataTip inconsistent visibility
Ely, Thanks for the info. The reason I was going with subclasses, is because the Stacked type series stacking information (stackTotals) is protected, so I needed a subclass. This whole thing started with the Stacked type series, the simple series could possibly be handled in a single case statement. However, since I have to use a subclass/override dataTipFunction for that, I am kinda stuck going the subclass route right? Is there some way to do the chart dataTipFunction and also in some cases use the series supplied function? In general, It seems like I find a lot of cases where it seems completely unnecessary to make a function or variable protected or private. I mean in the case of formatDataTip, that function does not modify anything, simply formats a string. That could have been public even. no danger of calling, and useful for calling or overriding. If it were public, it would be easy to use the case statement, supply the default formatDataTip function in the default case, and override just the ones I wanted to. And if I could have gotten to the stack totals that would have been just as good or even better. thanks, PW --- In flexcoders@yahoogroups.com, Ely Greenfield [EMAIL PROTECTED] wrote: In general, they're prive because we provide an alternate method for changing the datatip that doesn't require subclassing (setting the dataTipFunction on the chart). Depending on the scenario, it feels a little bit like overkill. If I were writing this myself, I would write my own dataTipFunction for the chart, which just cased on the type of the series generating the datatip, and took appropriate action. The only reason I would bother with subclassing the series is if I were trying to wrap up new or modified series types for use in other apps or by other developers. If you really want to keep the datatip functionality encapsulated in the series...The way datatips work is that the series stuffs a reference to its datatip function into the HitData structure before it returns it from the findDataPoints() function. So I would subclass the series, override findDataPoints, call the super() version, and then right before returning the hitData structures generated by the super version, stuff my own altenrate data tip function into the hitData structures. Ely. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of parkerwhirlow Sent: Thursday, February 22, 2007 12:59 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Chart Series - formatDataTip inconsistent visibility I started making some application specific tweaks to the chart series dataTips, and it worked beautifully for ColumnSet (override the protected function formatDataTip), but then I soon realized that only the SET series (subclasses of StackedSeries) have that function as protected. It's actually private on all the standard series. Is there a reason that it's private on the normal series, but protected on the series sets? I am thinking as a workaround, I'll have to do something like this. what do you think? Use the chart's dataTipFunction, and call back into the series (via hitData.element) to a slightly differently named function (myFormatDataTip) defined on the series subclass. I don't like this because then I have to make sure the myFormatDataTip function exists before calling it, and I make assumption about the signature, but I think that would work... comments? thanks, PW
[flexcoders] Re: Chart Series - formatDataTip inconsistent visibility
--- In flexcoders@yahoogroups.com, Ely Greenfield [EMAIL PROTECTED] wrote: In this scenario, I would suggest subclassing the Stacked series (ColumnSet, or whichever you need), and exposing the percent values. OK, this seems workable to me. i.e., if the behavior is defined, accessible, overridable, then it ties our hands in our ability to refactor code and functionality because someone might be relying on it. I hadn't thought about that aspect. I was considering the usefulness of having the information, versus needing to protect the class functionality. thanks, PW
[flexcoders] Re: FDS/Hibernate Sample of updating hierarchical list of values
Thats very unfortunate. I'm getting farther and farther into hot water not being able to reliably update our data model using Flex. Last it was just wait for 2.0.1, there's a lot of Hibernate/FDS fixes in it and now we're waiting for another unknown amount of time for fixes we can only hope will help our situation. I'm apologize, I understand it's not your fault, and I really appreciate the insight you provide as to what can be causing our problems, I'm just getting up to my neck in unsolved problems. If you have any insight as to roughly when this next release could occur, can you tip me off? thanks, PW --- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote: I have finished making the changes and the use of the merge call seems to be a) much simpler and b) more robust than the way the current code works. Unfortunately we've made enough changes to the code surrounding the HibernateAssembler so I can't just send you the updated file and have it work in FDS2. It will be in an upcoming public beta but I don't think we've announced the dates on that. Jeff From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of parkerwhirlow Sent: Thursday, February 15, 2007 3:29 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: FDS/Hibernate Sample of updating hierarchical list of values Hey Jeff, just curious if you've got any updated HibernateAssembler code with some fixes? Any idea when this would be available? thanks, PW --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Jeff Vroom jvroom@ wrote: My apologies - this does look like a bug. I need to do more testing on this case myself, but I think one of the big problems here is that we are trying to do conflict detection on our own in the hibernate assembler's updateItem method. Unless you are using a strict isolation level in your DB (repeatable read or serializable) this is not going to be transactionally correct anyway since the DB version can be modified after we have executed the query and before we do our update. We probably should not be getting the server version at all... hibernate has its own optimistic concurrency support that we should be using if it is enabled. That is probably the only way to get atomic conflict detection without resorting to using those particularly slow isolation levels. That would potentially get rid of the conflicting version of the item in the transaction. The other thing I need to look into is the merge method in hibernate. Seems like we should probably be using that in the updateItem method? I'll be working on this next week so will send out any updates I can to the code. Jeff From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of parkerwhirlow Sent: Thursday, February 01, 2007 6:05 PM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] FDS/Hibernate Sample of updating hierarchical list of values Hi all, I have been tearing my hair out trying to get FDS/Hibernate to update a hierarchical list of values. Even the simplest of collection mappings in Hibernate cause various exceptions when trying to update. Before I post my details, does anyone have any examples of this that work? Has anyone ever even gotten this to work? I have two objects mapped in Hibernate: - Family Person where a Family has a Set of Person familyMembers. My FDS destination is to Family, and I am trying to update a family member (just the name) through this destination. First, I was getting Hibernate NonUniqueObjectException, which I finally tracked down to having my hibernate collection mapping set to lazy=false This caused all of the family member Person objects to be loaded into the PersistenceContext when the HibernateAssembler loaded the serverVersion of the Family. Then, once I set lazy=true on the collection mapping, I was getting an exception that A collection with cascade=all-delete-orphan was no longer referenced by the owning entity instance... since it is assigning a whole new collection to the familyMembers property one becomes unreferenced, and the other referenced. Sooo I can't use delete orphan to delete the family members when the family is deleted... OK. So then I make cascade=all. Now I'm getting ORA-01407: cannot update (SCHEMA.T_PERSON.FAMILYID) to NULL... I'm guessing that it's processing the dereferenced collection first (trying to detatch any Person's from the family before they're re-attached by the new collection. I can't believe this is so difficult... For more info on my setup and test case, please see my original post
[flexcoders] FDS/Hibernate - LazyInitializationException when writing AMF output
Hi again =) I've just started getting this exception inconsistently... sometimes it happens 3 times in a row, other times I can go all afternoon without getting it. Once the exception occurs, it will occur every time the client loads until FDS is restarted. Note this occurs on multiple collections. I tried setting the offending collection to lazy=false (in Hibernate), and the exception occurred on a different collection. I can't set every one of my collections to lazy=false. Especially since at this point, they HAVE to be lazy for the updateItem via hierarchical values to almost work. I also noticed that the collection does not necessarily need to have any items in it. (And possibly is caused specifically by NOT having any items in it, I can't tell for sure). The collection referenced in the exception below has no values, and there's another collection in that same class with values that doesn't seem to cause the exception. See below the hibernate mapping, and exception output when this occurs. (Note there are no FDS managed associations for this collection) Thanks for any insight you have as to what is causing this. PW _ joined-subclass name=Adult table=T_ADULT extends=Person key column name=ID length=22 / /key set name=children inverse=false cascade=all-delete-orphan key column name=PARENTID length=22 not-null=false / /key one-to-many class=Person / /set ... /joined-subclass 10:19:42,093 WARN ProxyWarnLog - Narrowing proxy to class config.test.Adult - this operation breaks == 10:19:44,687 ERROR LazyInitializationException - failed to lazily initialize a collection of role: config.test.Adult.children, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: config.test.Adult.children, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.j ava:350) at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97) at org.hibernate.collection.PersistentSet.size(PersistentSet.java:139) at java.util.ArrayList.init(ArrayList.java:133) at flex.messaging.io.ArrayCollection.init(ArrayCollection.java:44) at flex.messaging.io.amf.Amf3Output.writeArrayCollection(Amf3Output.java:407) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:147) at flex.messaging.io.amf.Amf3Output.writeObjectProperty(Amf3Output.java:215) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:495) at flex.messaging.io.amf.Amf3Output.writeCustomObject(Amf3Output.java:467) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:165) at flex.messaging.io.amf.Amf3Output.writeObjectArray(Amf3Output.java:730) at flex.messaging.io.amf.Amf3Output.writeAMFArray(Amf3Output.java:386) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:151) at flex.messaging.io.ArrayCollection.writeExternal(ArrayCollection.java:97) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:485) at flex.messaging.io.amf.Amf3Output.writeArrayCollection(Amf3Output.java:414) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:147) at flex.messaging.io.amf.Amf3Output.writeObjectProperty(Amf3Output.java:215) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:495) at flex.messaging.io.amf.Amf3Output.writeCustomObject(Amf3Output.java:467) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:165) at flex.messaging.io.amf.Amf3Output.writeObjectArray(Amf3Output.java:730) at flex.messaging.io.amf.Amf3Output.writeAMFArray(Amf3Output.java:386) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:151) at flex.messaging.io.ArrayCollection.writeExternal(ArrayCollection.java:97) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:485) at flex.messaging.io.amf.Amf3Output.writeArrayCollection(Amf3Output.java:414) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:147) at flex.messaging.io.amf.Amf3Output.writeObjectProperty(Amf3Output.java:215) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:495) at flex.messaging.io.amf.Amf3Output.writeCustomObject(Amf3Output.java:467) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:165) at flex.messaging.io.amf.Amf3Output.writeObjectArray(Amf3Output.java:730) at flex.messaging.io.amf.Amf3Output.writeAMFArray(Amf3Output.java:386) at
[flexcoders] Re: FDS/Hibernate - LazyInitializationException when writing AMF output
This is happening from FDS... flex.data.assemblers.HibernateAssembler uses a function called fetchObjectProperties() that's supposed to load them all while the session is open right? I've seen in other posts that FDS eager fetches the properties in the Assembler, so that they are available during serialization... am I missing something here? thanks, PW --- In flexcoders@yahoogroups.com, Dima Gutzeit [EMAIL PROTECTED] wrote: Hi, You have to initialize the collections before AMF serializes them. The problem occurs since you closing Hibernate session without first initializing the arrays, and since you are using lazy initialization the problem arise. You have two options : 1. Use lazy=false 2. Better one, is calling /Hibernate.initialize(your_array_reference);/ before you close the Hibernate session. Regards, Dima Gutzeit. parkerwhirlow wrote: Hi again =) I've just started getting this exception inconsistently... sometimes it happens 3 times in a row, other times I can go all afternoon without getting it. Once the exception occurs, it will occur every time the client loads until FDS is restarted. Note this occurs on multiple collections. I tried setting the offending collection to lazy=false (in Hibernate), and the exception occurred on a different collection. I can't set every one of my collections to lazy=false. Especially since at this point, they HAVE to be lazy for the updateItem via hierarchical values to almost work. I also noticed that the collection does not necessarily need to have any items in it. (And possibly is caused specifically by NOT having any items in it, I can't tell for sure). The collection referenced in the exception below has no values, and there's another collection in that same class with values that doesn't seem to cause the exception. See below the hibernate mapping, and exception output when this occurs. (Note there are no FDS managed associations for this collection) Thanks for any insight you have as to what is causing this. PW _ joined-subclass name=Adult table=T_ADULT extends=Person key column name=ID length=22 / /key set name=children inverse=false cascade=all-delete-orphan key column name=PARENTID length=22 not-null=false / /key one-to-many class=Person / /set ... /joined-subclass 10:19:42,093 WARN ProxyWarnLog - Narrowing proxy to class config.test.Adult - this operation breaks == 10:19:44,687 ERROR LazyInitializationException - failed to lazily initialize a collection of role: config.test.Adult.children, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: config.test.Adult.children, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.j ava:350) at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97) at org.hibernate.collection.PersistentSet.size(PersistentSet.java:139) at java.util.ArrayList.init(ArrayList.java:133) at flex.messaging.io.ArrayCollection.init(ArrayCollection.java:44) at flex.messaging.io.amf.Amf3Output.writeArrayCollection(Amf3Output.java:407) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:147) at flex.messaging.io.amf.Amf3Output.writeObjectProperty(Amf3Output.java:215) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:495) at flex.messaging.io.amf.Amf3Output.writeCustomObject(Amf3Output.java:467) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:165) at flex.messaging.io.amf.Amf3Output.writeObjectArray(Amf3Output.java:730) at flex.messaging.io.amf.Amf3Output.writeAMFArray(Amf3Output.java:386) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:151) at flex.messaging.io.ArrayCollection.writeExternal(ArrayCollection.java:97) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:485) at flex.messaging.io.amf.Amf3Output.writeArrayCollection(Amf3Output.java:414) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:147) at flex.messaging.io.amf.Amf3Output.writeObjectProperty(Amf3Output.java:215) at flex.messaging.io.amf.Amf3Output.writePropertyProxy(Amf3Output.java:495) at flex.messaging.io.amf.Amf3Output.writeCustomObject(Amf3Output.java:467) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:165) at flex.messaging.io.amf.Amf3Output.writeObjectArray(Amf3Output.java:730) at flex.messaging.io.amf.Amf3Output.writeAMFArray(Amf3Output.java:386) at flex.messaging.io.amf.Amf3Output.writeObject(Amf3Output.java:151
[flexcoders] Re: FDS/Hibernate Sample of updating hierarchical list of values
Hey Jeff, just curious if you've got any updated HibernateAssembler code with some fixes? Any idea when this would be available? thanks, PW --- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote: My apologies - this does look like a bug. I need to do more testing on this case myself, but I think one of the big problems here is that we are trying to do conflict detection on our own in the hibernate assembler's updateItem method. Unless you are using a strict isolation level in your DB (repeatable read or serializable) this is not going to be transactionally correct anyway since the DB version can be modified after we have executed the query and before we do our update. We probably should not be getting the server version at all... hibernate has its own optimistic concurrency support that we should be using if it is enabled. That is probably the only way to get atomic conflict detection without resorting to using those particularly slow isolation levels. That would potentially get rid of the conflicting version of the item in the transaction. The other thing I need to look into is the merge method in hibernate. Seems like we should probably be using that in the updateItem method? I'll be working on this next week so will send out any updates I can to the code. Jeff From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of parkerwhirlow Sent: Thursday, February 01, 2007 6:05 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] FDS/Hibernate Sample of updating hierarchical list of values Hi all, I have been tearing my hair out trying to get FDS/Hibernate to update a hierarchical list of values. Even the simplest of collection mappings in Hibernate cause various exceptions when trying to update. Before I post my details, does anyone have any examples of this that work? Has anyone ever even gotten this to work? I have two objects mapped in Hibernate: - Family Person where a Family has a Set of Person familyMembers. My FDS destination is to Family, and I am trying to update a family member (just the name) through this destination. First, I was getting Hibernate NonUniqueObjectException, which I finally tracked down to having my hibernate collection mapping set to lazy=false This caused all of the family member Person objects to be loaded into the PersistenceContext when the HibernateAssembler loaded the serverVersion of the Family. Then, once I set lazy=true on the collection mapping, I was getting an exception that A collection with cascade=all-delete-orphan was no longer referenced by the owning entity instance... since it is assigning a whole new collection to the familyMembers property one becomes unreferenced, and the other referenced. Sooo I can't use delete orphan to delete the family members when the family is deleted... OK. So then I make cascade=all. Now I'm getting ORA-01407: cannot update (SCHEMA.T_PERSON.FAMILYID) to NULL... I'm guessing that it's processing the dereferenced collection first (trying to detatch any Person's from the family before they're re-attached by the new collection. I can't believe this is so difficult... For more info on my setup and test case, please see my original post: http://tech.groups.yahoo.com/group/flexcoders/message/63308 http://tech.groups.yahoo.com/group/flexcoders/message/63308 any comments as to if anyone has done this successfully are greatly appreciated! thanks, PW
[flexcoders] Re: FDS DataService.commit() doesn't trigger responder result()...?
Jeff, Sorry about the lack of response, I've been out of the office all last week. I haven't heard of this mx:TraceTarget/ is that a global flag you put at the mx:Application level? I'll give it a shot, and get back to you. thanks, PW --- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote: It does really look like the ack is going back to the client. Have you tried looking at the client side logs (in flashlog.txt, debug player only, enabled with mx:TraceTarget/? Maybe something funky is going on there? Jeff From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of parkerwhirlow Sent: Monday, February 05, 2007 11:15 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] FDS DataService.commit() doesn't trigger responder result()...? Hi again, I've got a simple save case working as far as I can tell (from debugging the server java side, everything is OK after leaving the HibernateAssembler.java updateItem() method. But the result never gets back to the client... I have a responder registered to the call like so: call = service.commit(); call.action = save; call.addResponder(responder); And my responder has both fault and result methods. I know the responder is registered because I was getting faults for a long time, and those were firing the fault handler. But now that I think I have the save going successfully, I'm not getting anything back. I've turned on FDS logging for messages, see the trace below. Seems like the ACK message is being sent... Any ideas? thanks, PW 02/05 11:01:36 user [Flex] 11:01:36.794 [DEBUG] [Message.Data.transacted] After invoke service: data-service reply: Flex Message (flex.messaging.messages.AcknowledgeMessage) clientId = null correlationId = null destination = null messageId = 7793A2C0-FA0D-5A78-3641-BB1BA4B4ADB5 timestamp = 1170702096794 timeToLive = 0 body = [ ] 02/05 11:01:36 user [Flex] 11:01:36.794 [DEBUG] [Endpoint.RTMP] Serializing AMF/RTMP response Version: 3 (Command method=_result (0) trxId=20) (Typed Object #0 'flex.messaging.messages.AcknowledgeMessage') destination = null headers = (Object #1) correlationId = 322C326C-9C96-8513-7EC3-934715E5D887 messageId = 7793A2C0-FA0D-5A78-3641-BB1BA4B4ADB5 timestamp = 1.170702096794E12 clientId = 77909013-D108-A13B-EC7E-EDBFA5C3A894 timeToLive = 0.0 body = (Array #2)
[flexcoders] Re: parent-child hierarchy of data using Flex, FDS and Hibernate
All-in-all a very worthwhile exercise and my dev environment is now more under my control. Good to hear. was just replying to your previous post in this thread, and now I see you got it figured out. Excellent. I still can't figure out how to turn on debug logging in Hibernate, See this other post where I figured out how to turn on the Hibernate logging. If you don't know about log4j, I suggest doing a few searches on it, and reading up about the log4j.properties file. It's a very powerful tool, and Hibernate has a TON of good logging, but its easy to get lost in it all if you just turn everything on to debug... http://tech.groups.yahoo.com/group/flexcoders/message/59623 Hibernate has a sample log4j.properties in the Hibernate/etc directory The exception is thrown way down in the bowels of the Hibernate session.save() method which is being called by HibernateAssembler.createItem. From Jeff's last post he seemed to be suggesting that updateItem was in some way at fault. I'm not quite seeing how that relates to my problem, although I am clearly no expert. I'm not exactly sure how the problem would occur from createItem(), but take a look at my post here I mention what was causing it for me (was a lazy=false setting on the collection association of the object being updated) http://tech.groups.yahoo.com/group/flexcoders/message/63471 The issue with the NOT NULL column was that once I had everything working the behavior it was doing was to null out all the FK values for the association, thereby dis-associating the children from the parent, then updating all the entries in the collection to point back to the parent. Once I made the association nullable, the update started working. (at least as far as FDS was concerned. Jeff, if you have a new version of the Assembler code and want a guinea-pig, send it my way. Likewise! cheers, PW
[flexcoders] Re: parent-child hierarchy of data using Flex, FDS and Hibernate
--- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote: It is now trying to do conflict detection on its own by comparing the previous version with a version of the hibernate object it loads into that session. That won't be transactionally correct unless you are using a strict isolation level and Hibernate has its own versioning stuff which we should be using instead. Just an FYI, I have turned off all UPDATE conflict detection in FDS (update-conflict-modeNONE/update-conflict-mode) in an attempt to get the simple case working. I am fine with using Hibernate's versioning for conflict detection. PW
[flexcoders] FDS DataService.commit() doesn't trigger responder result()...?
Hi again, I've got a simple save case working as far as I can tell (from debugging the server java side, everything is OK after leaving the HibernateAssembler.java updateItem() method. But the result never gets back to the client... I have a responder registered to the call like so: call = service.commit(); call.action = save; call.addResponder(responder); And my responder has both fault and result methods. I know the responder is registered because I was getting faults for a long time, and those were firing the fault handler. But now that I think I have the save going successfully, I'm not getting anything back. I've turned on FDS logging for messages, see the trace below. Seems like the ACK message is being sent... Any ideas? thanks, PW 02/05 11:01:36 user [Flex] 11:01:36.794 [DEBUG] [Message.Data.transacted] After invoke service: data-service reply: Flex Message (flex.messaging.messages.AcknowledgeMessage) clientId = null correlationId = null destination = null messageId = 7793A2C0-FA0D-5A78-3641-BB1BA4B4ADB5 timestamp = 1170702096794 timeToLive = 0 body = [ ] 02/05 11:01:36 user [Flex] 11:01:36.794 [DEBUG] [Endpoint.RTMP] Serializing AMF/RTMP response Version: 3 (Command method=_result (0) trxId=20) (Typed Object #0 'flex.messaging.messages.AcknowledgeMessage') destination = null headers = (Object #1) correlationId = 322C326C-9C96-8513-7EC3-934715E5D887 messageId = 7793A2C0-FA0D-5A78-3641-BB1BA4B4ADB5 timestamp = 1.170702096794E12 clientId = 77909013-D108-A13B-EC7E-EDBFA5C3A894 timeToLive = 0.0 body = (Array #2)
[flexcoders] Re: FDS/Hibernate Sample of updating hierarchical list of values
Jeff, thanks for looking into this...
while you're at it, I posted this as a bug to the wishlist site, but
it didn't make it into 2.0.1... I've taken to building the
HibernateAssembler myself to try to get things working, but this is
dedfinitely a defect:
HibernateAssembler.java (fds2.0.1 release version)
Line (starting): 691
int k;
for (k = i; k toList.size(); k++)
{
if (assocType.getIdentityFromItem(toList.get(i)).equals(fromId))
break;
}
Notice that the index used in the loop is (i) not (k)... this was
causing some really odd behavior that took me a good while to figure
out =)
thanks again,
PW
--- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote:
My apologies - this does look like a bug. I need to do more testing on
this case myself, but I think one of the big problems here is that we
are trying to do conflict detection on our own in the hibernate
assembler's updateItem method. Unless you are using a strict isolation
level in your DB (repeatable read or serializable) this is not going to
be transactionally correct anyway since the DB version can be modified
after we have executed the query and before we do our update. We
probably should not be getting the server version at all... hibernate
has its own optimistic concurrency support that we should be using if it
is enabled. That is probably the only way to get atomic conflict
detection without resorting to using those particularly slow isolation
levels.
That would potentially get rid of the conflicting version of the item in
the transaction. The other thing I need to look into is the merge
method in hibernate. Seems like we should probably be using that in the
updateItem method? I'll be working on this next week so will send out
any updates I can to the code.
Jeff
[flexcoders] Re: parent-child hierarchy of data using Flex, FDS and Hibernate
Hi guys, I have made a post in similar vein to this one, and had a couple comments. I agree that when possible, using managed associations and individual destinations for each side of the association is a best approach. However I'm running into issues with the hierarchical values approach you mention below. Maybe it's just my hibernate mappings, or maybe there's an issue. Note, I end up having to use this approach in some cases (destination references a base-class, and collection associations reside in sub-class instances). In the example used here, whenever I modify a value of a child (User Scenario) or grandchild (Scenario), because the save is going through the parent (PlanPoint), the Hibernate Assembler assigns the collection as though it were a property of the parent. At this point when the commit occurs, I get a org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session Check out my post. (http://tech.groups.yahoo.com/group/flexcoders/message/63308) I'd be interested to know if you get this working (hierarchical values), could you post up an example of the hibernate mappings? thanks, PW --- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote: This relates to your other question about the association tags in the metadata section. There are two ways you can work with non-primitive object properties using FDMS. You can either have them be managed associations or you can treat them as hierarchical values. If you choose the former, you define a destination for each data type and explicitly define the relationships using the metadata tags: one-to-many, one-to-one, etc (FDMS only pays attention to the ...-to-one or -to-many suffix as it only cares about whether the association is single or multi-valued). In this approach, each destination deals with the changes made to objects of that type. If you create a new child object and add it to a property on the parent for example, it will send the create event to the child destination and then send an update event to the parent destination. These are both executed in the same transaction so they will both get committed at the same time. When you use the hierarchical values approach, the entire object graph underneath that property is treated as a single value. Any changes made to any state under that property is treated as a change to the property's value. FDMS reports the change to the parent object's destination and only tells you that the property of the parent changed. We do give you the complete old and new values though of the parent object so you can walk down and compare them to figure out the details of what changed. Whenever you use this approach, the entire object graph gets shipped back and forth for each change so it gets inefficient as the object graph gets bigger. In this particular case, it sounds like the managed association feature would be the best approach. You can create new objects on either the client or the server - whichever makes the most sense for your application. Simply adding a new object to the property of another managed object is enough to create it for the system. We'll detect that it is a new object and log both the create and update operations as part of the batch. When you issue the commit call, both are sent to the server as part of the same batch. Jeff From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of simonjpalmer Sent: Sunday, January 28, 2007 12:56 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] parent-child hierarchy of data using Flex, FDS and Hibernate Hi, I have a 4 level hierarchy of data in my application with a bi-directional one-to-many relationship between each level as follows: PlanPoint (parent) -- UserScenario (child) Scenario (grandchild) -- Competitor (great grandchild) I have a hibernate back end running under JBoss and I am using FDS to synchronise the changes from my Flex UI. My DB will be Oracle, but for the time being I am just testing with a HSQLDB for convenience. I have managed to create a destination in FDS which will retrieve the parent objects. The hibernate mapping docs specify the further retrieval of the graph of objects attached to them. This all works fine and performs reasonably well, although I have been unable to get any meaningful lazy loading to work (a problem for another time). My problem comes in that the user will interact deeply with the graph of objects during the client session. This includes adding, removing and updating objects at all levels. What I can't seem to get right is the interaction in the Flex layer which copes with this level of interaction. For instance if I want to add a new Competitor to a Scenario do I (i) create all new objects on the client and then synchronise the
[flexcoders] FDS/Hibernate Sample of updating hierarchical list of values
Hi all, I have been tearing my hair out trying to get FDS/Hibernate to update a hierarchical list of values. Even the simplest of collection mappings in Hibernate cause various exceptions when trying to update. Before I post my details, does anyone have any examples of this that work? Has anyone ever even gotten this to work? I have two objects mapped in Hibernate: - Family Person where a Family has a Set of Person familyMembers. My FDS destination is to Family, and I am trying to update a family member (just the name) through this destination. First, I was getting Hibernate NonUniqueObjectException, which I finally tracked down to having my hibernate collection mapping set to lazy=false This caused all of the family member Person objects to be loaded into the PersistenceContext when the HibernateAssembler loaded the serverVersion of the Family. Then, once I set lazy=true on the collection mapping, I was getting an exception that A collection with cascade=all-delete-orphan was no longer referenced by the owning entity instance... since it is assigning a whole new collection to the familyMembers property one becomes unreferenced, and the other referenced. Sooo I can't use delete orphan to delete the family members when the family is deleted... OK. So then I make cascade=all. Now I'm getting ORA-01407: cannot update (SCHEMA.T_PERSON.FAMILYID) to NULL... I'm guessing that it's processing the dereferenced collection first (trying to detatch any Person's from the family before they're re-attached by the new collection. I can't believe this is so difficult... For more info on my setup and test case, please see my original post: http://tech.groups.yahoo.com/group/flexcoders/message/63308 any comments as to if anyone has done this successfully are greatly appreciated! thanks, PW
[flexcoders] FDS save problem w/Hibernate collection
Hello, I'm getting back a Hibernate NonUniqueObjectException when trying to update an item via FDS. This happens (as far as I can tell) any time you update a property of an object in a collection that is NOT a managed association in FDS. Here's the details: Single FDS destination: Family Family has a set of familyMembers (no FDS managed association, one-to-many set w/class Person in Hibernate). Hibernate set up to commit via the collection (inverse=false, cascade=ALL_CASCADE_DELETE) Load a family, iterate through the familyMembers, and change one of their names. I've tried this with auto-commit and manual commit, both with same results. stack trace and code follow. Please let me know, I can email an entire setup for easily reproducing this. Thanks in advance, PW -- Stack Trace --- 01/31 14:16:51 user [Flex] 14:16:51.403 [ERROR] [DataService.Hibernate] Exception in UpdateItem: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [config.test.Person#3] 01/31 14:16:51 user [Flex] 14:16:51.413 [ERROR] [DataService.Hibernate] org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [config.test.Person#3] at org.hibernate.engine.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:556) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:259) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:217) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70) at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499) at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:218) at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268) at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216) at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169) at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296) at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242) at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219) at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169) at org.hibernate.engine.Cascade.cascade(Cascade.java:130) at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:131) at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:122) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) at flex.data.assemblers.HibernateAssembler.updateItem(HibernateAssembler.java:740) at flex.data.adapters.JavaAdapter.doUpdateItem(JavaAdapter.java:504) at flex.data.adapters.JavaAdapter.invokeAssemblerSync(JavaAdapter.java:391) at flex.data.adapters.JavaAdapter.invokeBatchOperation(JavaAdapter.java:248) at flex.data.adapters.JavaAdapter.invoke(JavaAdapter.java:232) at flex.messaging.services.MessageService.serviceMessage(MessageService.java:139) at flex.data.DataService.sendBatchToAdapter(DataService.java:1326) at flex.data.DataService.serviceTransactedMessage(DataService.java:505) at flex.data.DataService.serviceMessage(DataService.java:241) at flex.messaging.MessageBroker.routeMessageToService(MessageBroker.java:548) at flex.messaging.endpoints.AbstractEndpoint.serviceMessage(AbstractEndpoint.java:302) - Hibernate Mappings - class name=Family table=T_FAMILY id name=id type=string column name=ID length=22 / generator class=assigned / /id property name=familyName type=string column name=SURNAME length=100 not-null=false / /property set name=familyMembers inverse=false lazy=false cascade=all-delete-orphan key column name=FAMILYID length=22 not-null=true / /key one-to-many class=Person / /set /class class name=Person table=T_PERSON id name=id type=string column name=ID length=22 / generator class=assigned / /id property name=name type=string column name=NAME length=100 / /property many-to-one name=family
[flexcoders] Re: Is Flash a single thread application?
Events are not fired concurrently. They are fired in order of their listener priority. See the following documentation on addEventListener function http://livedocs.macromedia.com/flex/2/langref/flash/events/EventDispatcher.html#addEventListener() By default, priority is '0' for user added events, so they will fire in the order added. There's some constants defined in the EventPriority class that the framework uses when adding event listeners for things such as Bindings, Effects, etc. Hope this helps. PW --- In flexcoders@yahoogroups.com, Cameron Bahan [EMAIL PROTECTED] wrote: Flash does seems to be single-threaded. However, one should be careful as events are fired concurrently. I have run into a few issues regarding concurrency and shared data. So far the only solutions that I have heard is to write a custom locker class using a boolean lock. Has anyone else experienced this? How have you solved it? CS Bahan Lead Software Engineer On Jan 23, 2007, at 4:31 AM, saha.prasanta wrote: Hi, I've read in some forum that Flash is a single thread application. I tried to find some document supporting that statement, But I couldn't find any document by Adobe or Macromedia regarding that. Could you plase help me by forwarding the of such article. I need that as a proof for one of my project. Warm regards, Prasanta Saha, Flash Developer, Hyderabad, Indaia
[flexcoders] Re: non visible fields in data grid are displaying
I have seen other posts recently regarding this. Search for 2.0.1 in
recent past, and you'll find some others with this issue. I personally
have not seen it.
good luck,
PW
--- In flexcoders@yahoogroups.com, Shelley Browning
[EMAIL PROTECTED] wrote:
Hello,
I've been building an application that utilizes data grids. For some
reason the fields that are set visible=false are displaying when the
data is populated using a data collection and data is updated. This just
started occurring when I did the updated with Flex Builder. Anyone else
see this? If so what did you do to correct?
mx:DataGrid id=gridEmployees dataProvider={searchCollection}
width=90% height=100%
mx:columns
mx:DataGridColumn headerText=Emp No dataField=EmpNo
width=60 /
mx:DataGridColumn headerText=Name dataField=Name /
mx:DataGridColumn headerText=Job Title dataField=JobTitle/
mx:DataGridColumn headerText=PersonID dataField=PersonID
visible=false/
mx:DataGridColumn headerText=PersonUUID dataField=PersonUUID
visible=false/
/mx:columns
/mx:DataGrid
Thanks,
Shelley Browning
Intermountain Healthcare
[flexcoders] Constant 40% CPU usage in Flex App?
Guys, I just noticed that my application is constantly using around 40% of my computer's CPU... I have a decent (albeit old) 2Ghz machine with 2GB ram... This is long after the app has loaded everything and had time to settle... Are there any other people out there seeing strange issues where the CPU hangs around 40%? I'm starting into the debugger, trying to break into it while its running to see what is going on... Can't really tell right now. One thing I did see was, the BusyCursor::enterFrameHandler keeps getting called even though I have ended the busy cursor using CursorManager.removeBusyCursor. The busy cursor isn't showing any more either... I don't know how often that enterFrameHandler is called. Could that be part of the issue? Looking for any ideas on how to troubleshoot this too. I have tried to create somewhat simplified applications, but so far none can reproduce the issue I have with the main app. thanks, PW
[flexcoders] Re: DataGrid - numeric sort?
Thanks a bunch,
That did work great.
PW
--- In flexcoders@yahoogroups.com, michael_ramirez44
[EMAIL PROTECTED] wrote:
--- In flexcoders@yahoogroups.com, parkerwhirlow
parkerwhirlow@ wrote:
DUDE! what the heck ?
You must have copied out the labelFunction... thats not
sortCompareFunction... it definitely requires two objects to
compare!
Your example implementation even does a simple number format =)
Nice try though.
PW
In the Language Reference, the only documentation for
sortCompareFunction
--- In flexcoders@yahoogroups.com, michael_ramirez44
michael_ramirez44@ wrote:
--- In flexcoders@yahoogroups.com, parkerwhirlow
parkerwhirlow@ wrote:
Its amazing how complicated something so seemingly easy can
be...
All I want to do is provide a numeric sort for columns that
contain
numeric data. (by default the sorting is all text based)
I found the DataGridColumn.sortCompareFunction and tried this.
The problem I have is that the objects passed to the function
are
the
entire row, and I have no context of which column the sort is
for.
It seems like they left out some key information in the
signatures
of
some of the DataGrid functions... for instance labelFunction
signature
has the column being rendered but dataTipFunction does not.
Therefore
I have the same issue with dataTipFunction as I do with
sortCompareFunction... how do you know what column you're
working
with?
Anyone know any tricks? How have others implemented custom
sorting
of
datagrids?
thanks,
PW
The signature on the SortCompareFunction:
private function sortNumber
(item:Object,column:DataGridColumn):String
{
return numFormatter.format(item[column.dataField]);
}
Sorry! Your right I gave you the labelFunction. For the
SortCompateFunction I had to capture the headerRelease event and
store the column that was sorted.
mx:DataGrid id=dgResults dataProvider={results} width=100%
height=100% headerRelease=sortHeader(event) /
private function sortHeader(event:DataGridEvent):void
{
columnToSort = event.dataField;
}
private function sortColumnNumber( x:Object, y:Object):int
{
x[columnToSort] y[columnToSort]
return ...
}
[flexcoders] Flex 2.0.1 update install problems
I just installed Flex Builder Plugin 2.0.1 Updater, and followed install instructions, running eclipse -clean -vmargs -Xmx512m Has anyone else seen this error? I've searched flexcoders, and this problem appears to be unique. thanks, PW When Flex starts up I get this error: A problem occurred while opening this project. Try quitting and restarting the application. If the problem persists, you may be using an unsupported project version, or your project files may be corrupted. In the Eclipse error log, I have this: !SUBENTRY 1 com.adobe.flexbuilder.project 4 43 2007-01-16 09:24:58.617 !MESSAGE Error Loading Project !STACK 0 com.adobe.flexbuilder.project.persist.PersistenceException: Expected a single compilerSourcePath tag but found 0 at com.adobe.flexbuilder.project.persist.TagSetting.getSingleElement(Unknown Source) at com.adobe.flexbuilder.project.persist.ClassPathSetting.read(Unknown Source) at com.adobe.flexbuilder.project.persist.ContainerTag.read(Unknown Source) ...
[flexcoders] Re: Flex 2.0.1 update problems - FIXED Cairngorm 2.0
Deleting and re-creating each of my projects in turn revealed that it was the Cairngorm 2.0 project that is imported into the workspace. I also found the tags they're looking for and added them. Here's the two that were missing from .actionScriptProperties (add these tags inside the compiler tag) compilerSourcePath/ sourceAttachmentPath/ Hope this helps someone else along the way. cheers, PW --- In flexcoders@yahoogroups.com, parkerwhirlow [EMAIL PROTECTED] wrote: I just installed Flex Builder Plugin 2.0.1 Updater, and followed install instructions, running eclipse -clean -vmargs -Xmx512m Has anyone else seen this error? I've searched flexcoders, and this problem appears to be unique. thanks, PW When Flex starts up I get this error: A problem occurred while opening this project. Try quitting and restarting the application. If the problem persists, you may be using an unsupported project version, or your project files may be corrupted. In the Eclipse error log, I have this: !SUBENTRY 1 com.adobe.flexbuilder.project 4 43 2007-01-16 09:24:58.617 !MESSAGE Error Loading Project !STACK 0 com.adobe.flexbuilder.project.persist.PersistenceException: Expected a single compilerSourcePath tag but found 0 at com.adobe.flexbuilder.project.persist.TagSetting.getSingleElement(Unknown Source) at com.adobe.flexbuilder.project.persist.ClassPathSetting.read(Unknown Source) at com.adobe.flexbuilder.project.persist.ContainerTag.read(Unknown Source) ...
[flexcoders] Re: DataGrid - numeric sort?
DUDE! what the heck ?
You must have copied out the labelFunction... thats not
sortCompareFunction... it definitely requires two objects to compare!
Your example implementation even does a simple number format =)
Nice try though.
PW
In the Language Reference, the only documentation for sortCompareFunction
--- In flexcoders@yahoogroups.com, michael_ramirez44
[EMAIL PROTECTED] wrote:
--- In flexcoders@yahoogroups.com, parkerwhirlow
parkerwhirlow@ wrote:
Its amazing how complicated something so seemingly easy can be...
All I want to do is provide a numeric sort for columns that contain
numeric data. (by default the sorting is all text based)
I found the DataGridColumn.sortCompareFunction and tried this.
The problem I have is that the objects passed to the function are
the
entire row, and I have no context of which column the sort is for.
It seems like they left out some key information in the signatures
of
some of the DataGrid functions... for instance labelFunction
signature
has the column being rendered but dataTipFunction does not.
Therefore
I have the same issue with dataTipFunction as I do with
sortCompareFunction... how do you know what column you're working
with?
Anyone know any tricks? How have others implemented custom sorting
of
datagrids?
thanks,
PW
The signature on the SortCompareFunction:
private function sortNumber(item:Object,column:DataGridColumn):String
{
return numFormatter.format(item[column.dataField]);
}
[flexcoders] DataGrid - numeric sort?
Its amazing how complicated something so seemingly easy can be... All I want to do is provide a numeric sort for columns that contain numeric data. (by default the sorting is all text based) I found the DataGridColumn.sortCompareFunction and tried this. The problem I have is that the objects passed to the function are the entire row, and I have no context of which column the sort is for. It seems like they left out some key information in the signatures of some of the DataGrid functions... for instance labelFunction signature has the column being rendered but dataTipFunction does not. Therefore I have the same issue with dataTipFunction as I do with sortCompareFunction... how do you know what column you're working with? Anyone know any tricks? How have others implemented custom sorting of datagrids? thanks, PW
[flexcoders] Bug fixes list for 2.0.1?
Hi all, I was wondering if there exists a list of bugs that were fixed in the 2.0.1 Flex SDK? I have seen quite a few bugs reported and filed here on flexcoders, (and I'm sure there were more than that) and I'd like to track down a couple to see if they were fixed. Anyone heard of such a list? thanks, PW
[flexcoders] Re: working example of custom MenuDataDescriptor?
Have you found a solution for this? I'm having similar problem. I have set my custom data descriptor to my menu before showing it, however the sub-menu that is automatically created, is having the DefaultDataDescriptor assigned to it. This causes the sub-menu to fail to show. I am not sure why your data descriptor methods were not being called, my menu data provider is an ArrayCollection of objects, and my methods are being called. You might give that a shot. PW --- In flexcoders@yahoogroups.com, Bastian Waidelich [EMAIL PROTECTED] wrote: Hello group, Does anybody have a working example of a MenuBar with a custom dataDescriptor? According to the example Creating a custom data descriptor in the Flex documentation I have created a Class which implements IMenuDataDescriptor. Now when my dataSource is an Array of objects only the method isEnabled of the dataDescriptor will be called.. When the dataSource is XML-based, the method getChildren is called at least - But only once. What I need is a Menu which only shows e.g. level 1 to 3 of the dataSource. Some help would be greatly appreciated, this hast cost me some sleepless nights already - Flex is a great thing indeed, but sometimes it's just killing me ;)
[flexcoders] menu / sub menu with custom dataDescriptor
I think I've run into a horrible defect with Menu... Maybe I'm missing something, here. I have a menu that I assign a custom dataDescriptor. The top menu shows fine. However, when a sub-menu is shown, it assigns a DefaultDataDescriptor, not my custom dataDescriptor. I have tried catching the showMenu event and assigning it, but I get a null pointer exception (my dataProvider items do not have a 'type' property) before I get any event for the subMenu. Anyone heard of this? Any workarounds you can think of? I thought of trying to sub-class Menu, but the one function I need to override to fix this is mx_internal function openSubMenu(...) thanks. PW
[flexcoders] Re: eclipse, FB, and Peter's FDS plugin
I was getting these memory errors even after raising the memory (-Xms and -Xmx) but also had to add the following. -XX:MaxPermSize=256m Once I did this, I haven't gotten them anymore. PW --- In flexcoders@yahoogroups.com, Dimitrios Gianninas [EMAIL PROTECTED] wrote: I'm using 3.2.1 and a whole bunch of callisto plugins (which includes WTP) and eclipse gives me memory warnings at least twice a day, I have to shutdown and restart... ya darn annoying if u ask me. Dimitrios Gianninas RIA Developer Optimal Payments Inc. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Douglas Knudsen Sent: Wednesday, January 03, 2007 1:26 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] eclipse, FB, and Peter's FDS plugin Anyone using eclipse, FB, and Peter's FDS plugin? I'm using eclipse wtp-all-in-one-sdk-R-1.0.2-200604200208-win32, FB 2, and Peter's FDS plugin. I'm experience MAJOR CPU spikes and memory use form eclipse in this config. I've raised the jvm heap and all, as high as 1024m, yet still get out of memory errors. Oh, I upgraded to the latest 1.5.0.10 JVM from Sun too. I'm working on a FDS project with Tomcat 5.5 and this is killing me. Any ideas? Something wrong in the WTP package? Should I use the sysdeo tomcat plugin instead of the one in WTP? No other plugins installed currently and on a fresh eclipse download too. -- Douglas Knudsen http://www.cubicleman.com http://www.cubicleman.com this is my signature, like it? -- WARNING --- This electronic message and its attachments may contain confidential, proprietary or legally privileged information, which is solely for the use of the intended recipient. No privilege or other rights are waived by any unintended transmission or unauthorized retransmission of this message. If you are not the intended recipient of this message, or if you have received it in error, you should immediately stop reading this message and delete it and all attachments from your system. The reading, distribution, copying or other use of this message or its attachments by unintended recipients is unauthorized and may be unlawful. If you have received this e-mail in error, please notify the sender. AVIS IMPORTANT -- Ce message électronique et ses pièces jointes peuvent contenir des renseignements confidentiels, exclusifs ou légalement privilégiés destinés au seul usage du destinataire visé. L'expéditeur original ne renonce à aucun privilège ou à aucun autre droit si le présent message a été transmis involontairement ou s'il est retransmis sans son autorisation. Si vous n'êtes pas le destinataire visé du présent message ou si vous l'avez reçu par erreur, veuillez cesser immédiatement de le lire et le supprimer, ainsi que toutes ses pièces jointes, de votre système. La lecture, la distribution, la copie ou tout autre usage du présent message ou de ses pièces jointes par des personnes autres que le destinataire visé ne sont pas autorisés et pourraient être illégaux. Si vous avez reçu ce courrier électronique par erreur, veuillez en aviser l'expéditeur.
[flexcoders] Re: Rich text editor in TabNavigator causes runtime exception.
It is also strongly stated in the docs that the RichTextEditor IS a container (subclass of Panel) I have added an outer container wrapper for this and it did work. Thanks for that tip. PW --- In flexcoders@yahoogroups.com, Tracy Spratt [EMAIL PROTECTED] wrote: Ah, it is strongly implied in the docs that TabNavigator children must be containers: ...for navigating between its child containers ..., and similar language. Tracy From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of parkerwhirlow Sent: Tuesday, January 02, 2007 5:34 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Rich text editor in TabNavigator causes runtime exception. Hi all, I have placed a RichTextEditor into a tabNavigator, and I get the following runtime error. See sample app. If you remove the tabNavigator, then the RichTextEditor works fine. Any ideas? Am I doing something dumb? TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::RichTextEditor/mx.controls:RichTextEditor::createChildren() at mx.core::UIComponent/initialize() at mx.core::Container/initialize() and TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::RichTextEditor/::getTextStyles() at Function/http://adobe.com/AS3/2006/builtin::apply http://adobe.com/AS3/2006/builtin::apply () at mx.core::UIComponent/::callLaterDispatcher2() at mx.core::UIComponent/::callLaterDispatcher() _ ?xml version=1.0 encoding=utf-8? mx:Application xmlns:mx=http://www.adobe.com/2006/mxml http://www.adobe.com/2006/mxml layout=vertical width=400 height=300 mx:TabNavigator width=100% height=100% mx:RichTextEditor label=SQL width=100% height=100% showControlBar=false headerHeight=0 borderThicknessBottom=10 borderThicknessTop=10 /mx:RichTextEditor /mx:TabNavigator /mx:Application
[flexcoders] Chart showDataEffect being canceled?!
I've spent hours and hours tracking down an intermittent failure of
the showDataEffect to trigger. Sometimes it just didn't work.
After all these hours, I realized the effect is actually being
canceled! In ChartBase, setActualSize is being called, and the effect
is being canceled.
override public function setActualSize(w:Number, h:Number):void
{
if (w != this.width || h != this.height)
cancelEffect();
super.setActualSize(w, h);
}
There are two things I can't figure out... the first one is why it is
necessary to cancel any pending effect if the size is different, but
the more immediate one is why my chart is changing size when all that
changed was the chart data? All I've done is re-query my chart for
different data.
Seems like effects are pretty worthless if they're intermittent. Am I
overlooking something here or is this a limitation that was considered
acceptable?
thanks,
PW
[flexcoders] Rich text editor in TabNavigator causes runtime exception.
Hi all, I have placed a RichTextEditor into a tabNavigator, and I get the following runtime error. See sample app. If you remove the tabNavigator, then the RichTextEditor works fine. Any ideas? Am I doing something dumb? TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::RichTextEditor/mx.controls:RichTextEditor::createChildren() at mx.core::UIComponent/initialize() at mx.core::Container/initialize() and TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::RichTextEditor/::getTextStyles() at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.core::UIComponent/::callLaterDispatcher2() at mx.core::UIComponent/::callLaterDispatcher() _ ?xml version=1.0 encoding=utf-8? mx:Application xmlns:mx=http://www.adobe.com/2006/mxml; layout=vertical width=400 height=300 mx:TabNavigator width=100% height=100% mx:RichTextEditor label=SQL width=100% height=100% showControlBar=false headerHeight=0 borderThicknessBottom=10 borderThicknessTop=10 /mx:RichTextEditor /mx:TabNavigator /mx:Application
[flexcoders] Re: Percentage based width in ActionScript
You should be able to assign percentHeight and percentWidth properties in AS... I do this fairly often. PW --- In flexcoders@yahoogroups.com, Matt Maher [EMAIL PROTECTED] wrote: Yikes, I am creating a component in ActionScript and adding an HBOX to it as a child. I want that hbox to fill 90% of the width of this. I see on this page http://livedocs.macromedia.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Partsfile=0518.html a comment about percentHeight, percentWidth In MXML tags only... Come on, really? This seems a very troubling shortcoming. I just know one of you gurus has figured out a simple fix for this, right?
[flexcoders] Re: Bug using FDS to persist managed association as Set
Hi Jeff,
I tracked it down. The bug is line 662 in this loop (note i vs. k):
int k;
for (k = i; k toList.size(); k++)
{
if (assocType.getIdentityFromItem(toList.get(i)).equals(fromId))
break;
}
I'm fixing locally, and also probably going to write a separate
routine for non-ordered sets. I realized with your message and looking
over it again that it re-orders them even if it's a set.
Don't know if this one will make it into 2.0.1, sounds like it may be
too late.
thanks
PW
--- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote:
I don't know of a bug in that code... I can explain what should be
happening. There is probably a more efficient (and simpler) way to do
this when you know you are dealing with an unordered set, but I don't
know why it is breaking right now.
When it hits line 675 for an item which is in both sets, it should have
previously hit the call to remove that very same item a few lines
earlier 671. The code is written so that it is merging two sorted lists
and so it will remove and reinsert an item if it has to shift the
position. Because the position of an item in a Set is can be random,
this may end up doing a lot more work than is necessary.
I think that when it hits the end of the list, it should just be culling
off items that are in the toList which should not be. If the
equals/hashCode methods get messed up, this could easily get messed up
though so that is one thing to check. If the remove call fails to find
the item to remove, things would get out of sync between the set and the
list and I'm not sure what would happen.
For Sets, we probably should just have one loop which iterates over the
to list. If the item is not in the from list we remove it from the
toList. Then we loop over the from list and if it is not in the toList
we add it to the toList. If the equals and hashCode methods are not
right for the items in the list and the id properties, this probably
would not fix the problem though.
In terms of recompiling the HibernateAssembler, I think you can just
compile it normally with the WEB-INF/lib classes in your classpath. You
can find HibernateAssembler in one of the flex-messaging jar files and
just replace the old one with the new one.
Jeff
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of parkerwhirlow
Sent: Friday, December 22, 2006 5:06 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Bug using FDS to persist managed association as
Set
This is probably best handled by Jeff Vroom, but I'm open to comments
from anyone
I have dug through the HibernateAssembler source after seeing very
strange behavior, and I think I've uncovered a bug in the
HibernateAssembler.
When it is persisting a change to a property that is an FDS managed
relationship, and that relationship is a collection mapped as a Set in
Hibernate, it ends up removing a bunch of items from the collection
that should not be removed...
HibernateAssembler line 591 starts a routine that is supposed to merge
the new collection with the one from the server.
Because the collection is a PersistentSet, not a List, the variable
isList is false, and it gets an ArrayList from the collection to have
sequential access.
while looping through each item in the fromList, even though the item
is in both collections, at line 675 it calls add on toList and toColl.
toColl is a set, so the add function replaces the existing object
(which it should in case the new one has changed). And the item is
added to the end of the toList.
After looping through each item in fromList, line 686 removes items
from toColl and toList until they are the same length. I'm not sure
why it is doing this, but it is removing the items from the toColl,
and when done, toColl has much less items in it than it should.
Is this a known/fixed defect?
I'm going to start trying to compile this class so that I can
implement a fix for it, but I'm not positive what is needed to do so.
If there is a fix for it already, I'd love to get it.
thanks,
PW
[flexcoders] Re: DataService commit() doesn't finish.
Hi Jeff,
No, the fault handler isn't called. This is part of what confuses me.
Will be anxiously awaiting the 2.0.1 release for further
troubleshooting of this.
thanks,
PW
--- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote:
It looks like an exception is occurring and the transaction is being
rolled back. Is your fault handler being called on the client side? I
think that there are certain types of Errors and RuntimeExceptions which
are not being logged properly by the FDS MessageService so that is
making this look mysterious in the logs. If the error is occurring
after the updateItem call succeeds, it will be hard to track down
without libraries that do that logging. 2.0.1 is coming out real soon
now and has some improvements to the logging so that might be worth a
try.
Jeff
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of parkerwhirlow
Sent: Thursday, December 21, 2006 4:14 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] DataService commit() doesn't finish.
Hi guys,
I have some functionality that used to work that isn't working
anymore... using FDMS and HibernateAssembler.
From Flex, I've made one single change and used DataService.commit(),
and added a responder to the AsyncToken.
On the server, I can trace through the HibernateAssembler.updateItem()
and everything goes fine. The commit code doesn't get called though
because Transactions are true, and the syncSession is used.
There is some server trace of an AcknowledgeMessage getting sent, but
the responder never gets called, and if I refresh the flex client, the
values are not saved.
Please see the log trace below, and let me know if I missed anything.
thanks,
PW
12/21 15:49:55 user [Flex] 15:49:55.658 [DEBUG]
[Message.Data.transacted] Before invoke service: data-service
incomingMessage: Flex Message (flex.data.messages.DataMessage)
operation = transacted
id = null
clientId = 37BE2173-400E-D4C7-CBC3-2943A841449A
correlationId =
destination = Model
messageId = F4DE4EEE-9D72-806C-A4DB-A76BC6F02C11
timestamp = 1166744995648
timeToLive = 0
body =
[
Flex Message (flex.data.messages.DataMessage)
operation = update
id = ASObject(32376284){id=1163778853188464256078}
clientId = CCD745B5-3C9E-C584-4ED4-A7666B51EEF4
correlationId = F4DE4EEE-9D72-806C-A4DB-A76BC6F02C11
destination = Application
messageId = 8577BADB-417B-D762-5E92-A76B983BAA25
timestamp = 0
timeToLive = 0
body =
[
[
selecteddisplay
],
[EMAIL PROTECTED],
[EMAIL PROTECTED]
]
hdr(newReferencedIds) = {displays=
[
{id=1156440527883820192695},
{id=1164384322718557235986},
{id=1164388051550092880785},
{id=1164467025953663641911},
{id=1164467032523719875336},
{id=1164467037039304665983}
]}
hdr(prevReferencedIds) = {displays=
[
{id=1156440527883820192695},
{id=1164384322718557235986},
{id=1164388051550092880785},
{id=1164467025953663641911},
{id=1164467032523719875336},
{id=1164467037039304665983}
]}
]
hdr(DSEndpoint) = my-rtmp
12/21 15:49:55 user [Flex] 15:49:55.819 [DEBUG]
[DataService.Transaction] Started transaction using jndi name:
java:comp/UserTransaction
12/21 15:49:55 user [Flex] 15:49:55.949 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1156440527883820192695 -
[EMAIL PROTECTED]
12/21 15:50:06 user [Flex] 15:50:06.864 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164384322718557235986 -
[EMAIL PROTECTED]
12/21 15:50:11 user [Flex] 15:50:11.261 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164388051550092880785 -
[EMAIL PROTECTED]
12/21 15:50:15 user [Flex] 15:50:15.707 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467025953663641911 -
[EMAIL PROTECTED]
12/21 15:50:19 user [Flex] 15:50:19.753 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467032523719875336 -
[EMAIL PROTECTED]
12/21 15:50:23 user [Flex] 15:50:23.789 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467037039304665983 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.684 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1156440527883820192695 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.784 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164384322718557235986 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.805 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164388051550092880785 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.825 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467025953663641911 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.845 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467032523719875336 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.855 [DEBUG]
[DataService.Hibernate
[flexcoders] Re: enabling Hibernate logging through log4j with jrun/fds2
I have gotten hibernate logging to work by placing log4j.jar into the web-inf/lib directory, and placing a log4j.properties (you can use the sample) into the web-inf/classes directory. That was all I needed to do. good luck, PW --- In flexcoders@yahoogroups.com, thunderstumpgesatwork [EMAIL PROTECTED] wrote: Does anyone know how to get hibernate logging when using FDS and the HibernateAssembler? From my reading on Hibernate: see http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#configuration-logging , they use log4j, and talk about putting a log4j.properties file in the WEB-INF/classes directory, but I have tried this with no luck... Also, I'm not referring to Flex's Hibernate Assembler log set up by setting patternDataService.Hibernate/pattern in the services-config.xml log target... I'm talking about getting internal Hibernate log output. thanks, Thunder
[flexcoders] Bug using FDS to persist managed association as Set
This is probably best handled by Jeff Vroom, but I'm open to comments from anyone I have dug through the HibernateAssembler source after seeing very strange behavior, and I think I've uncovered a bug in the HibernateAssembler. When it is persisting a change to a property that is an FDS managed relationship, and that relationship is a collection mapped as a Set in Hibernate, it ends up removing a bunch of items from the collection that should not be removed... HibernateAssembler line 591 starts a routine that is supposed to merge the new collection with the one from the server. Because the collection is a PersistentSet, not a List, the variable isList is false, and it gets an ArrayList from the collection to have sequential access. while looping through each item in the fromList, even though the item is in both collections, at line 675 it calls add on toList and toColl. toColl is a set, so the add function replaces the existing object (which it should in case the new one has changed). And the item is added to the end of the toList. After looping through each item in fromList, line 686 removes items from toColl and toList until they are the same length. I'm not sure why it is doing this, but it is removing the items from the toColl, and when done, toColl has much less items in it than it should. Is this a known/fixed defect? I'm going to start trying to compile this class so that I can implement a fix for it, but I'm not positive what is needed to do so. If there is a fix for it already, I'd love to get it. thanks, PW
[flexcoders] FDMS destinations and inheritance
Guys, I'm trying to properly set up a relationship between a class View, which has a FDMS destination called View, and in Hibernate has a relationship called parent which points to a ViewContainer. The trick is that ViewContainer is a sub-class of View. So normally I would create my managed relationship like this: destination id=View ... many-to-one property=parent destination=ViewContainer lazy=true / ... /destination and destination id=ViewContainer ... one-to-many property=childViews destination=Views lazy=false / ... /destination NOW isn't this going to wreak havoc on FDS if the same object (a ViewContainer) actually matches more than one destination? specifically when my Application class has a managed relationship to View, and those views could be ViewContainers... How should this be solved properly? thanks, PW
[flexcoders] Re: dataGrid Help, populating - newbie array question (consider it a an xmas gift)
First I think you're confused about the semantics of
ArrayCollection... it is not a collection of arrays, but rather a
Collection interface wrapper on a single array.
When you define the dataProvider statically in mxml the way you did,
what you're doing is creating a single array of Objects (each object
having 3 properties)
So you want to do the same thing with the ArrayCollection in code...
var dp:ArrayCollection = new ArrayCollection();
var o:Object = new Object();
o.Poll=Do You Like Law And Order;
o.Number=53;
o.owner=batanga/jumpman
o.type=1;
dp.addItem(o);
dgFeatured1.dataProvider = dp;
GoodLuck!
PW
--- In flexcoders@yahoogroups.com, {reduxdj} [EMAIL PROTECTED] wrote:
Good morning,
Sorry, to post this again, but I'm goin in circles and confused
how to
populate a datagrid properly with an array collection as a
dataProvider. I'm able to use an mx:ArrayCollection or a single
array
in an array collection, but how do I populate it automatically
with an
array collection holding 3 arrays, like this?
mx:DataGrid id=dgFeatured1 width=250 height=150
styleName=mainText top=208 left=46 itemClick=itemClickEvent
(event);
mx:ArrayCollection
mx:source
mx:Object Poll=Do You Like Law And Order
Number=53 owner=batanga/jumpman type=1/
mx:Object Poll=When Do You Do Most Of Your
Christmas... Number=49 owner=batanga/jumpman type=1/
mx:Object Poll=Can I Date Your Daughter
Number=54
owner=batanga/DonaldRumsfeld type=1/
/mx:source
/mx:ArrayCollection
mx:columns
This works, but I want to do the same thing as above with my
arrays in
an array collection, this probably something really basic I don't
grasp
how to use. This works, but only with one array in my array
collection...
var _data_fastest:Object = RemotingProvider.getInstance().getPolls
();
fastestAC = new ArrayCollection(_data_fastest.fastest);
I want to the following, why does this not work the same way, what
am I
not grasping:
fastestAC = new ArrayCollection
(_data_fastest.fastest,_data_.id,_data.type);
then I want to use the dataProvider so I can populate it just like
the
first example and then get my selected item.
Thanks flex genius!
[flexcoders] Re: Datagrid scrolling woes!
I don't know if you're just trying to be misleading, or mis-typed
something, but it doesn't help any if you're passing wrong
information.
DataGrid (or List for that matter) doesn't have a vPosition property
at all.
I don't know the answer for sure, but there's a 'scrollPosition'
property on dataGrid.verticalScrollBar ... thats the one I'd look at
first.
good luck.
PW
--- In flexcoders@yahoogroups.com, Tracy Spratt [EMAIL PROTECTED]
wrote:
For DataGrid, setting vPosition=myrowIndex will scroll the grid to
the
desired line.
Tracy
From: flexcoders@yahoogroups.com
[mailto:[EMAIL PROTECTED] On
Behalf Of Cameron Ray
Sent: Wednesday, December 20, 2006 6:29 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Datagrid scrolling woes!
Hello all, I'm trying to accomplish something that is seemingly
easybut is driving me bananas due to the fact that it's not
working.
I want to setup a function that can be called and that function
will
scroll my datagrid to a specific row within that datagrid.
Here's what I've got (that doesn't work)any thoughts?
_
public function scrollDG():void {
dgUserRequest.editedItemPosition = {columnIndex:0,
rowIndex:dgUserRequest.dataProvider.length-1};
}
]]
/mx:Script
mx:Button label=Scroll click=scrollDG()/
mx:Text text={app.userInfo.firstname}'s Videos/
mx:DataGrid id=dgUserRequest
x=22
y=128 dataProvider={app.vidInfo2}
width=850
height=700
headerStyleName=headerStyle
mx:columns
mx:DataGridColumn headerText=Thumbnail dataField=thumb_name
itemRenderer=components.dgRenderImage width=104/
mx:DataGridColumn headerText=Video Title dataField=projectname
id=title
fontWeight=bold paddingLeft=10/
mx:itemRenderer
mx:Component
mx:VBox verticalAlign=middle
mx:Text text={data.projectname}/
/mx:VBox
/mx:Component
/mx:itemRenderer
/mx:DataGridColumn
mx:DataGridColumn headerText= dataField=projectid
itemRenderer=components.dgEditProject width=120/
mx:DataGridColumn headerText=Last Modified
dataField=lastmodified
itemRenderer=components.dgLastMod width=150/
mx:DataGridColumn headerText= dataField=projectid
itemRenderer=components.dgDeleteProject width=75/
/mx:columns
/mx:DataGrid
Thanks for the help.
-Cameron
[flexcoders] Re: RegExp
a couple quick things.. I'm by no means an expert at regex... but... the first backslash is unnecessary isn't it? is not a meta character, so the \ after the first / isn't needed. also, don't you want to remove ALL characters between the and ? so I'd change the inner [a-zA-Z0-9]* to .*? (the question mark makes it a lazy quantifier instead of an agressive quantifier) And one last thing, is you may need the multi-line flag also (if the XML has line breaks... so I'd give this a shot... haven't tried it myself though /lt;.*?gt;/gim good luck PW --- In flexcoders@yahoogroups.com, e_baggg [EMAIL PROTECTED] wrote: I am trying to create a regular expression that essentially parses out all the html of a text string. (i.e. - Remove all text between lt; and gt;). I am not the seasoned regex pro, but my attempts have failed based on research within the livedocs: var pattern : RegExp = /\lt;[a-zA-Z0-9]*gt;/gi Does anyone see what is wrong? var stringToEdit : String = lt;!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'gt;lt;htmlgt;lt;headgt;text I should seelt;/headgt;lt;/htmlgt;; var pattern : RegExp = /\lt;[a-zA-Z0-9]*gt;/gi var newStr : String = stringToEdit.replace(pattern, ); trace(newStr); //Desired Output: text I should see //Actual output :-( !DOCTYPE html PUBLIC -//W3C//DTD HTML 4.01 Transitional//ENhtmlheadtext I should see/head/html
[flexcoders] DataService commit() doesn't finish.
Hi guys,
I have some functionality that used to work that isn't working
anymore... using FDMS and HibernateAssembler.
From Flex, I've made one single change and used DataService.commit(),
and added a responder to the AsyncToken.
On the server, I can trace through the HibernateAssembler.updateItem()
and everything goes fine. The commit code doesn't get called though
because Transactions are true, and the syncSession is used.
There is some server trace of an AcknowledgeMessage getting sent, but
the responder never gets called, and if I refresh the flex client, the
values are not saved.
Please see the log trace below, and let me know if I missed anything.
thanks,
PW
12/21 15:49:55 user [Flex] 15:49:55.658 [DEBUG]
[Message.Data.transacted] Before invoke service: data-service
incomingMessage: Flex Message (flex.data.messages.DataMessage)
operation = transacted
id = null
clientId = 37BE2173-400E-D4C7-CBC3-2943A841449A
correlationId =
destination = Model
messageId = F4DE4EEE-9D72-806C-A4DB-A76BC6F02C11
timestamp = 1166744995648
timeToLive = 0
body =
[
Flex Message (flex.data.messages.DataMessage)
operation = update
id = ASObject(32376284){id=1163778853188464256078}
clientId = CCD745B5-3C9E-C584-4ED4-A7666B51EEF4
correlationId = F4DE4EEE-9D72-806C-A4DB-A76BC6F02C11
destination = Application
messageId = 8577BADB-417B-D762-5E92-A76B983BAA25
timestamp = 0
timeToLive = 0
body =
[
[
selecteddisplay
],
[EMAIL PROTECTED],
[EMAIL PROTECTED]
]
hdr(newReferencedIds) = {displays=
[
{id=1156440527883820192695},
{id=1164384322718557235986},
{id=1164388051550092880785},
{id=1164467025953663641911},
{id=1164467032523719875336},
{id=1164467037039304665983}
]}
hdr(prevReferencedIds) = {displays=
[
{id=1156440527883820192695},
{id=1164384322718557235986},
{id=1164388051550092880785},
{id=1164467025953663641911},
{id=1164467032523719875336},
{id=1164467037039304665983}
]}
]
hdr(DSEndpoint) = my-rtmp
12/21 15:49:55 user [Flex] 15:49:55.819 [DEBUG]
[DataService.Transaction] Started transaction using jndi name:
java:comp/UserTransaction
12/21 15:49:55 user [Flex] 15:49:55.949 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1156440527883820192695 -
[EMAIL PROTECTED]
12/21 15:50:06 user [Flex] 15:50:06.864 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164384322718557235986 -
[EMAIL PROTECTED]
12/21 15:50:11 user [Flex] 15:50:11.261 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164388051550092880785 -
[EMAIL PROTECTED]
12/21 15:50:15 user [Flex] 15:50:15.707 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467025953663641911 -
[EMAIL PROTECTED]
12/21 15:50:19 user [Flex] 15:50:19.753 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467032523719875336 -
[EMAIL PROTECTED]
12/21 15:50:23 user [Flex] 15:50:23.789 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467037039304665983 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.684 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1156440527883820192695 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.784 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164384322718557235986 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.805 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164388051550092880785 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.825 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467025953663641911 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.845 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467032523719875336 -
[EMAIL PROTECTED]
12/21 15:50:27 user [Flex] 15:50:27.855 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1164467037039304665983 -
[EMAIL PROTECTED]
12/21 15:50:43 user [Flex] 15:50:43.577 [DEBUG]
[DataService.Hibernate] Get object from hibernate with
id=1163778853188464256078 - [EMAIL PROTECTED]
8634a
12/21 15:52:31 debug Pool skimmer cleaning objects from the pool that
have exceeded their allotted lifespan, has 1 pooled objects to evaluate
12/21 15:56:28 debug MM GC collected 0 messages, 0 remaining.
12/21 15:56:28 debug DMGC collected 0 caches, 0 remaining.
12/21 15:56:28 debug DMGC collected 0 destinations, 4 remaining.
12/21 15:58:27 user [Flex] 15:58:27.604 [DEBUG]
[Message.Data.transacted] After invoke service: data-service
reply: Flex Message
[flexcoders] Re: FDS: Using Hibernate second-level cache possible?
Jeff, Niko
I don't know exactly your problem, but I DO know where two session
factories could come from =)
I was stepping through all the HibernateManager code just today and
see the following in the HibernateManager.createSessionFactory... (it
creates one session factory for general purpose stuff, then another
for sync or updates/inserts
Hope this might help.
PW
_
sessionFactory = hibernateConfig.buildSessionFactory();
if (useTransactions)
{
// If the DataService is managing transactions, then we need to
change the context of the Hibernate
// session such that the DataService's management of the
transaction will handle commiting and closing
// the session -- this is only needed on sync methods, not on get,
fill or count methods
hibernateConfig.setProperty(hibernate.current_session_context_class,
flex.data.adapters.FlexHibernateSessionContext);
//hibernateConfig.setProperty(hibernate.transaction.factory_class,
org.hibernate.transaction.JTATransactionFactory);
//hibernateConfig.setProperty(jta.UserTransaction,
TransactionUtility.USER_TX_JNDI_NAME);
syncSessionFactory =
hibernateConfig.buildSessionFactory();
}
--- In flexcoders@yahoogroups.com, Jeff Vroom [EMAIL PROTECTED] wrote:
I think the important part of the error is here:
... 41 more
Caused by: net.sf.ehcache.CacheException: Cannot parseConfiguration
CacheManager. Attempt to create a new instance of CacheManager using the
diskStorePath /tmp/cache which is already used by an existing
CacheManager. The source of the configuration was classpath.
at net.sf.ehcache.CacheManager.configure(CacheManager.java:248) at
net.sf.ehcache.CacheManager.init(CacheManager.java:193) at
net.sf.ehcache.CacheManager.init(CacheManager.java:180) at
org.hibernate.cache.EhCacheProvider.start(EhCacheProvider.java:124)
It seems like there are two session factories being started up which are
configured to use the same cache. This could be because you have two
web apps on the same machine each using hibernate. I don't think that
flex would be trying to create two SessionFactories unless you were
using more than one hibernate configuration file. Flex should share one
session factory from all destinations which use the same hibernate
configuration file. There must be some way to set the path name of the
cache... maybe you just need to specify a different path name for this
cache for the FDMS version of hibernate?
Jeff
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Niko Schmuck
Sent: Wednesday, December 06, 2006 8:18 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] FDS: Using Hibernate second-level cache possible?
Hi together,
As a newbie I would like to get your advices on how to use the Hibernate
caching for Flex Data Management Services. Is this possible at all or a
contra-diction to the HibernateAssembler?
For my java applications I currently use second-level caching to speed
up
data access with Hibernate (3.2), which I would also like to use for my
Flex app:
For this I use in the Hibernate mapping definition (inside the class
element):
cache usage=read-write/
Unfortunately if I turn EhCache on (via the hibernate configuration) ...
property
name=cache.provider_classorg.hibernate.cache.EhCacheProvider/propert
y
... the tomcat logs show an ugly stack-trace:
CacheException: Attempt to restart an already started EhCacheProvider.
See below for the exception in its full-length beauty. The only way to
overcome this, to avoid caching at all by setting:
property
name=cache.provider_classorg.hibernate.cache.NoCacheProvider/propert
y
(Also using the recommended SingletonEhCacheProvider does not help)
Any help much appreciated.
Thanks,
Niko
2006-12-05 08:57:08,737 [main] ERROR
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/useradmi
n]
- Servlet /useradmin threw load() exception
java.lang.ExceptionInInitializerError
at
flex.data.assemblers.HibernateManager.createSessionFactory(HibernateMana
ger.java:66)
at
flex.data.assemblers.HibernateManager.init(HibernateManager.java:44)
at
flex.data.assemblers.HibernateAssembler.initialize(HibernateAssembler.ja
va:137)
at
flex.messaging.factories.JavaFactory$JavaFactoryInstance.createInstance(
JavaFactory.java:254)
at
flex.messaging.factories.JavaFactory.createFactoryInstance(JavaFactory.j
ava:93)
at
flex.messaging.FactoryDestination.getFactoryInstance(FactoryDestination.
java:76)
at flex.data.adapters.JavaAdapter.server(JavaAdapter.java:158) at
flex.data.adapters.JavaAdapter.setSettings(JavaAdapter.java:119)
at flex.messaging.Destination.createAdapter(Destination.java:279)
at
flex.messaging.Destination.initDestination(Destination.java:103)
at
