Why would want to cache the result?
Look, you have to make a decission. Are you interested in paging lists
or not? If you are, you should do a count query to determine how many
rows there are, and then just load the page of results you need with
another one. If you don't want to use paging, but
On 6/10/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
if calling paging 1,2,3 n each time requires a call to
iterator(first, count) and size(), which means a call to db, wouldn't this
way, it ll give a bottleneck at the database layer? Imagine there are about
concurrent 5000 users
you can only do onDetach on the AbstractDetachableReadOnlyModel, but you
can't do it in IDataProvider if you are to cache the result. Even if you
nullify the object in onDetach, the result list still appear in
IDataProvider. How to nullify the result in IDataProvider?
Jeremy Thomerson-2 wrote:
you can only do onDetach on the AbstractDetachableReadOnlyModel, but you
can't do it in IDataProvider if you are to cache the result.
In Wicket 1.3 you can.
Eelco
-
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in my experience this wont cause a problem. any reasonable db keeps a count
of the total rows in any given table. the size() query is most likely select
count(*) from foo, which will use that stored count. and even if there is
something more dynamic to it, the db will most likely put that
i believe even in 1.2.6 you can mix in idetachable. in 1.3 idataprovider
extends it directly.
-igor
On 6/10/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
you can only do onDetach on the AbstractDetachableReadOnlyModel, but you
can't do it in IDataProvider if you are to cache the result.
In
Eelco,
What i mean is that, you don't necessary have to cache the result
just do the paging lists. you can directly call the db to query the page
just like that...
void iterator( int first, int count)
{
db.getPage( parameter, first, count ).iterator();
}
int size()
{
Thank you, thank you. I missed that setEscapeModelStrings(), it works
now like a charm now. My boss will be happy :)
Kent Tong wrote:
wicket at rozkovec.info writes:
Those parts are important:
!--[if IE 7]!--/a!--![endif]--
!--[if lte IE 6]/td/tr/table/a![endif]--
the markup which
If it's only the repeated execution of a count projection that bothers
you, what Eelco suggest is likely not caching the data returned by the
iterator, it's caching the long returned by size(). It will decrease the
accuracy of the pager in favor of performance, and will not contribute
to
I think theres lots(Eelco usually being the friendliest), however
considering the subject of this thread. I think most will be inclined to
be not so friendly.
- Kick a guy in his ass and then asking to borrow a coin won't get you any..
regards Nino
A_flj_ wrote:
Thanks, I'm just downloading
Hi all,
I have been on holiday for a while... and I am very much surprised to
see this thread still going!
Eelco Hillenius wrote:
previous post. After all, as far as I could notice, he's the only one who
didn't make fun of this thread's initiator in his first response.
You know how it
any reasonable db keeps a count of the total rows in any given table.
the size() query is most likely select count(*) from foo
Then I guess Postgres (up until version 8.0 anyway) is not a
reasonable database. Unfortunately, getting a row count is typically
an expensive process due to its
Al Maw wrote:
I'm guessing you didn't try typing wicket treetable into Google and
clicking the I'm feeling lucky button?
Right, I pushed the google search button instead. Silly me.
I got to sites where the examples were on display. But I could not find any
place where a downloadable
hi,
What I do:
- checkout the directory wicket-examples
try checking out not only wicket-examples but the whole trunk.
then you should have all dependencies.
regards, --- jan.
-
This SF.net email is sponsored by DB2
yeah i sincerely believe issuing a row count() is an expensive, especially
when the row count doesn't change at all
Roger Hand wrote:
any reasonable db keeps a count of the total rows in any given table.
the size() query is most likely select count(*) from foo
Then I guess Postgres
Yes i'll try to explain in greater detail.
Looks like it was not the appendjavascript that wasnt working. But
something else.:)
Our hidden variables arent updated when using IE. Why they arent updated
correctly puzzles me, because just before the ajax call they seem to
have the correct
Hello,
I made an innocent programming error that day by adding a Form as a child
component of a TextField thats already the child of the Form. In that case,
execution gets stuck in an infinite loop in Component.findParent(final Class
c). I still am only scratching the surface of wicket, but are
Can you please test it with latest wicket 1.3? There was a bug that
prevented IE7 from processing ajax requests properly, it might be
related.
-Matej
On 6/11/07, Nino Saturnino Martinez Vazquez Wael
[EMAIL PROTECTED] wrote:
Yes i'll try to explain in greater detail.
Looks like it was not the
You just have to respect the hierarchy you have defined in the markup.
Nart Seine wrote:
Hello,
I made an innocent programming error that day by adding a Form as a child
component of a TextField thats already the child of the Form. In that
case,
execution gets stuck in an infinite loop
Hi Matej
Currently gmap contrib are using wicket 1.2.6. And currently im testing
with IE 6 which has the problems I mentioned, the ajax calls seems to
yield no problems so far I can see we get a call when the form are
submitted and it calls back after processing. However form values arent
In addition to the previous mail I would like to add, that we would like
to resolve this using wicket 1.2.6.
Now if anything are unclear or so please write and I'll try to explain
further.
Also the current version are the one available from SVN, I belive Iulian
upgraded the example so that
I need to change image according the selection made in dropdown.
It is working fine Firefox but not in IE
I tried it with onchange and onclick. It worked in Firefox but some how
it is not working IE.
Is there anything I am missing?
Is there any other approach to achieve the same functionality
I dunno. Could be problem with ajax form serialization. Can you
intercept the post request to see what parameters are submitted?
-Matej
On 6/11/07, Nino Saturnino Martinez Vazquez Wael
[EMAIL PROTECTED] wrote:
Looking even further into the problem I can see that the values are
correct after
I can see in my form I have a action that looks like this(on IE):
/quickstart/gmap/;jsessionid=blabla?wicket:interface:0:gmap
in firefox it looks like this:
/quickstart/gmap/?wicket:interface=:0:gmap:gmapUpdatingForm::IFormSubmitListener
im not sure if that does affect anything?
regards
this doesn't really makes sense. you have different action for IE and
different for firefox?
On 6/11/07, Nino Saturnino Martinez Vazquez Wael
[EMAIL PROTECTED] wrote:
I can see in my form I have a action that looks like this(on IE):
No I dont... It's pretty strange I guess it could be caused by IE not
accepting cookies? And then web container trying with url rewrite.
The difference in the action being called was a matter of me pasting
from two different places, I guess the heat are getting to me now(its
pretty hot here in
Looking at the the post (I use paros as proxy), things are alright.
Im now suspecting that its our function that aren't merged correctly. We
have a function called refreshGmap which we replace on ajax calls and
then evaluate on the client, im not sure if this are updated correctly
in IE.
The
i'll try:)
Matej Knopp wrote:
I dunno. Could be problem with ajax form serialization. Can you
intercept the post request to see what parameters are submitted?
-Matej
On 6/11/07, Nino Saturnino Martinez Vazquez Wael
[EMAIL PROTECTED] wrote:
Looking even further into the problem I can
On Saturday 09 June 2007 12:03 pm, Janos Cserep escreveu:
I've started migrating my applications to 1.3.0 and I think I ran into a
bug with Resource.getParameters().
If a resource is mounted via Application.mountSharedResource then
Resource.getParameters returns with an empty valuemap. If it
Hi
I haven't got experience with that error. Can you please post the code that
is not working?
Frank
On 6/11/07, Javed [EMAIL PROTECTED] wrote:
I need to change image according the selection made in dropdown.
It is working fine Firefox but not in IE
I tried it with onchange and onclick.
Great Jim, thanks a bunch.
I'll try it out and let you know.
Thanks again,
f(t)
On 6/8/07, James McLaughlin [EMAIL PROTECTED] wrote:
I think some of the older versions of wicket would sometimes omit
header contributions. When the error happens, check to see if
wicket-ajax.js is included in
On 6/11/07, Johan Karlberg [EMAIL PROTECTED] wrote:
If it's only the repeated execution of a count projection that bothers
you, what Eelco suggest is likely not caching the data returned by the
iterator, it's caching the long returned by size(). It will decrease the
accuracy of the pager in
yeah i sincerely believe issuing a row count() is an expensive, especially
when the row count doesn't change at all
Like it is said in the other thread, you should then look at caching
the count in either the data provider or the, if the data provider
calls a service to get the count, in the
why not download 1.2.6 and try yourself? let us know if its fixed or not.
-igor
On 6/11/07, Swaroop Belur [EMAIL PROTECTED] wrote:
Hi All
I have a dropdown choice in which I happened to render string values for
option value tags.
So as i have mentioned earlier in this thread, some option
I am migrating my application from 1.2.6 to 1.3.0 and am getting a
similar (although slightly different) problem in 1.3.0-incubating-SNAPSHOT.
I'll try to isolate the problem in a small example and follow up.
Regards,
Huergo
Igor Vaynberg wrote:
have you tried against the latest wicket-1.2.x
well, if a select count(*) from foo performs a table scan, i dont know if i
would call it reasonable. this is of course imho.
-igor
On 6/11/07, Roger Hand [EMAIL PROTECTED] wrote:
any reasonable db keeps a count of the total rows in any given table.
the size() query is most likely select
Yeah agreed. I was just wondering if a sanity check is needed at that point
in the code.
Thanks.
On 6/11/07, Alex Objelean [EMAIL PROTECTED] wrote:
You just have to respect the hierarchy you have defined in the markup.
Nart Seine wrote:
Hello,
I made an innocent programming error that
Lec wrote:
so what s the most optimized way of doing paging using the IDataProvider?
There is no optimal way. You have to engage your brain and make
trade-offs, just like you do with everything else.
You can make sure your database is configured to cache the COUNT(*)
query, which will be as
On 6/11/07, Nart Seine [EMAIL PROTECTED] wrote:
Yeah agreed. I was just wondering if a sanity check is needed at that point
in the code.
Thanks.
It would be possible to build this in, but it would come at the price
of increased processing overhead. Tbh, I'm not sure if the problem is
common
Speaking of sanity, awhile back, I was guilty of this fine piece of
brain damage:
class MyBrainDamagedModel implements IModel
{
// some interesting members
// some interesting methods
public Object getObject() {
return this;
}
}
Turns out this an excellent way to exercise your
Hello,
The application I am working on uses i18n. Wicket has been great with this.
:)
Our base page that every other page extends from, does the following:
getSession().setLocale(((INLWebSession)getSession()).getCredentials((WebRequest)getRequest()).getPreferredLocale());
to set the current
I read on the wiki that serializing spring beans is a problem because
of injected references. So what I want is something from spring which
it probably cannot give me. But I will try to clear this up on the
spring forum.
2007/6/7, Igor Vaynberg [EMAIL PROTECTED]:
hrm. you say you will have a
how are you creating your itab/abstracttab objects? can we see that code?
mainly what model do you pass in for the title.
and what object does it say is not serializable?
-igor
On 6/11/07, Shawn Tumey [EMAIL PROTECTED] wrote:
Hello,
The application I am working on uses i18n. Wicket has
The spring service is what it is complaining about not being serializable.
private void build(final String ahId, final int tab) {
List tabs=new ArrayList();
tabs.add(new AbstractTab(new ResourceModel(common.summary)){
private static final long serialVersionUID = 1L;
On Mon, 11 Jun 2007, James McLaughlin wrote:
class MyBrainDamagedModel implements IModel
...
public Object getObject() {
return this;
}
}
Turns out this an excellent way to exercise your cpu. I don't know if
there is anything wicket can do to prevent the hapless user the
shame
You can get to the HttpSession through the WebRequest. Assuming your
code is in a WebPage:
getRequest().getHttpServletRequest().getSession()
Enjoy,
On Mon, 2007-06-11 at 21:54 +0200, Kees de Kooter wrote:
I am currently working on a proof -of-concept of Wicket inside an
existing Struts app.
* Francisco Diaz Trepat - gmail:
Anybody knows how to change the displayed name of an AjaxSubmitButton?
I just tried to do a .setMode(new ResourceModel(bla bla But it didn't
work.
I have an input:
input type=submit value=create wicket:id=createButton
Please always mention the
Thanks Igor.
I should have been more specific.
I would like to access HttpSession attributes from a wicket WebSession
object. Is this possible?
To be specific my WebSession subclass has a getUser() method. This
user is stored as the session variable user.
On 6/11/07, Igor Vaynberg [EMAIL
((webrequest)RequestCycle.get().getRequest())...
-igor
On 6/11/07, Kees de Kooter [EMAIL PROTECTED] wrote:
Thanks Igor.
I should have been more specific.
I would like to access HttpSession attributes from a wicket WebSession
object. Is this possible?
To be specific my WebSession subclass
* Janos Cserep:
I've started writing a unit test for the getParameters() bug (WICKET-631),
but can't find a way to directly call a shared resource using
WicketTester. It's not on a page, or on a panel... Any pointers? Eelco
suggested to ask on this list.
Just typed Ctrl-Shift-T in
I would like to access HttpSession attributes from a wicket WebSession
object. Is this possible?
To be specific my WebSession subclass has a getUser() method. This
user is stored as the session variable user.
Note that (Web)Session is an abstraction. If your session store backs
on
Wicket: 1.2.6
Is there a trick to getting a table's data updated using Ajax (eg when a
DropDownChoice value changes - without refreshing the whole page)?
I started with a table that got update by its ListView with no Ajax. That
worked well.
Now, I try to use a WebMarkupContainer to wrap the
Wicket: 1.2.6
Is there a trick to getting a table's data updated using Ajax (eg when a
DropDownChoice value changes the rows in the table change - without
refreshing the whole page)?
I started with a table that got updated by its ListView with no Ajax. That
worked well.
Now, I try to use a
Fixed indentation for clarity ... any ideas how to make this work - see below
(table row data to be updated by the underlying ListView's model in
Wicket)?
final ListView lines = new ListView(lv,myList){
@Override
protected void populateItem(ListItem item) {
item.add(...); //
try putting a webmarkupcontainer on the table tag and repainting that.
-igor
On 6/11/07, howzat [EMAIL PROTECTED] wrote:
Fixed indentation for clarity ... any ideas how to make this work - see
below
(table row data to be updated by the underlying ListView's model in
Wicket)?
final ListView
Through the use of anonymous inner classes it is easy for objects to become
part of session state unintentionally. Does anyone know of a tool (or io
util package) that would help debuging these issues? Specifically it would
be great to be able to print the heiarchy/containment structure of a
Thanks Igor.
Could you be a bit more specific?
As per my original post, I am trying to use the WebMarkupContainer, but it's
not working (yet).
I'll repeat the code in case I confused the issue with my indentation
correction.
final ListView lines = new ListView(lv,myList){
@Override
Through the use of anonymous inner classes it is easy for objects to become
part of session state unintentionally. Does anyone know of a tool (or io
util package) that would help debuging these issues? Specifically it would
be great to be able to print the heiarchy/containment structure of a
OK, thanks.I tried that early on, but then my wicket:id=fN
wicket:id=lN but got the old ... but that you either did not add the
component to your page at all, or that the hierarchy does not match. for
...
tr wicket:id=wmc
td wicket:id=fNfirstName/td
td
you are missing wicket:id=lv somewhere
-igor
On 6/11/07, howzat [EMAIL PROTECTED] wrote:
OK, thanks.I tried that early on, but then my wicket:id=fN
wicket:id=lN but got the old ... but that you either did not add the
component to your page at all, or that the hierarchy does not match. for
I just found terracotta provides a nice dump of an object graph if it finds
problems in your clustering configuration. This should work for me however
if it does not I will definitely take a look at the code you wrote to create
a wicket session debug tool. Either way I will open a jira issue.
The ListView with id lv was added to listContainer, and listContiner (a
WebMarkupContainer with id wmc) was added to the form.
Do I need to explicitly mention lv in the html as well as wmc ??
igor.vaynberg wrote:
you are missing wicket:id=lv somewhere
-igor
On 6/11/07, howzat
of course
-igor
On 6/11/07, howzat [EMAIL PROTECTED] wrote:
The ListView with id lv was added to listContainer, and listContiner (a
WebMarkupContainer with id wmc) was added to the form.
Do I need to explicitly mention lv in the html as well as wmc ??
igor.vaynberg wrote:
you are
yeah, this would be particularly neat if it could tell you the size of each
object
in the graph using that JMX sizeof call. it's actually the non-serialized
size that
matters the most and that management call ought to be able to get a value
pretty close to correct (although if it's transitive,
I guess your code doesn't work right now..
Try this markup:
table border =1 align=center wicket:id=wmc
thead
tr
thfirst name/th
thlast name/th
/tr
/thead
tbody
tr wicket:id=lv
Ok I didn't see you double-posted:
http://www.nabble.com/Ajax---update-%3Ctable%3E-tf3904552.html
Frank
On 6/12/07, Frank Bille [EMAIL PROTECTED] wrote:
I guess your code doesn't work right now..
Try this markup:
table border =1 align=center wicket:id=wmc
thead
tr
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