FW: ibatis and global transactions
thanks brandon and rafiq. this is the route i will now explore. Ibatis is a fine product but the support on the forums here makes it something else. top job. Steve.. -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Fri 5/20/2005 6:33 PM To: James, Steven Subject: Re: ibatis and global transactions I believe EXTERNAL would be the way for you to go. If you are making changes against your database that are not completed all at once in a single connection then you would have to devise a strategy outside of ibatis to manage that. Standard IBatis works something like this. User Data passed to Biz Logic - Biz Logic calls dao(s) - sql is prepared - connection is retrieved - operation is executed - connection is closed - results are passed back to biz logic via dao - data presented to user. In your scenario you would need to retain the connection for the user in order to prevent a commit. This would require that you manage you own connection externally and pass them in to ibatis. You will also need a way to manage your connections and identify them with the users. But, i suspect you know how to do that. Brandon On 5/20/05, James, Steven [EMAIL PROTECTED] wrote: Thanks brandon. I think i may have used the term global transaction incorrectly. I really would like to have a unit or work start, end transaction that spans a number of business objects and can be rolled back at client request. I will also only have one datasource. Also i do not use the ibatis daomanager i created a simple class that gets my dao. If your original response is correct can i use jta without jndi. Again thanks for you help it is most appriciated. steve... -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Fri 5/20/2005 2:19 PM To: ibatis-user-java@incubator.apache.org Subject: Re: ibatis and global transactions You can manage your transactions with EXTERNAL of JTA. I believe that EXTERNAL is the better route to go in this case. This means that you will need to configure and manually start and stop your transactions outside of ibatis. Search the DAO pdf doc and the SQL Maps pdf doc for external to get more information. The JTA option in ibatis is tied to a single datasource. So, as far as global transactions that span databases... I don't think it would be that simple to accomplish with iBatis JTA support. Your other option is to use Spring (which would mean you get rid of the dao.xml) and setup sqlMapConfigs for each database you are accessing. Then you could use Spring's transaction management to manage transactions across any data access implementations you might have. Brandon On 5/20/05, James, Steven [EMAIL PROTECTED] wrote: Hi I working on an application where the services and buisness domain objects are sitting on a server with ibatis providing the data access layer support. The clients which are swt client connect to the server and via rpc calls. Our customer want us to rollback all db changes during a user login should they not want to commit (Commit in our case is not commit to db but to cascade data changes to other machines) ie they want to undo the changes made to the db ie rollback. Is ibatis capable of providing this global transaction that spans a users session if you like. In the daomanager api there is talk of 2 phase commits but i dont think this is the same thing? we are using mysql and the jdbc connector 3.1.6, the jdk is 1.4.2 no j2ee application server. many thanks steve.. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.
Merging multiple sqlmaps configurations
Hello, I've got following two sqlmaps configuration files: file1: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / /sqlMapConfig file2: sqlMapConfig sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig I'd like to merge these two files now. Is there a possability so that I do not have to create a file like this below? file3: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig Thanks, Cheers, Martin
Re: Merging multiple sqlmaps configurations
I'm really not sure what you are asking here. There is no way to combine two different sqlMapConfig files into one. You would have to create a new sqlMapConfig with all of the sqlMap files configured into it or load two SqlMapClients with their own sqlMapConfig files. Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hello, I've got following two sqlmaps configuration files: file1: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / /sqlMapConfig file2: sqlMapConfig sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig I'd like to merge these two files now. Is there a possability so that I do not have to create a file like this below? file3: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig Thanks, Cheers, Martin
Re: M:M question
It's difficult to answer this question because i don't really know the larger context. Usually i handle delete checkboxes and updates by iterating my list of objects returned from the screen. As i iterate through each object of the list i check to see if it is checked to be deleted and place it into a delete list. If it is not flagged for a delete i place it into an update list. Once i am finished iterating the list i pass the delete list to a delete function and my update list to an update function. Where you place this functionality in your architecture is a matter of your own judgment. Brandon On 5/22/05, Sergey Livanov [EMAIL PROTECTED] wrote: Could you advise as to how to better solve the problem. There is th table M:M with the following structure CLASSFK number , PROPERTY FK number , QUANTITY number . In my application I define PROPERTY QUANTITY for the CLASS class (with the help of checkbox ) upon which I need to record the information/results. If I choose checkbox - the record is to be deleted, if it is not there - it should be added, if it is there QUANTITY should be updated. -- regards, Sergey mailto:[EMAIL PROTECTED]
RE: Merging multiple sqlmaps configurations
Hi, I have two modules which are totally independent from each other. Each module uses more then one resource configuration. I would like to be able to create a new module, which has a dependency to the other two modules. This new module should only know the main config file and not the implementation details of the submodules. So we have only one entry point. What I really want is to combine sets of sql resources. This case is used in a framework for java. Cheers, Martin -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Montag, 23. Mai 2005 14:26 To: ibatis-user-java@incubator.apache.org Subject: Re: Merging multiple sqlmaps configurations I'm really not sure what you are asking here. There is no way to combine two different sqlMapConfig files into one. You would have to create a new sqlMapConfig with all of the sqlMap files configured into it or load two SqlMapClients with their own sqlMapConfig files. Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hello, I've got following two sqlmaps configuration files: file1: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / /sqlMapConfig file2: sqlMapConfig sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig I'd like to merge these two files now. Is there a possability so that I do not have to create a file like this below? file3: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig Thanks, Cheers, Martin
null BLOB and byte array
I have a BLOB column in my database that can be null. I want to map it to a byte[], but when I do, I get a NullPointerException. Anyway have a good way of dealing with this?
Re: [HELP] I can't not type sign in my sqlmap xml file
Brandon Goodin wrote: This is just plain funny. Can you tell that we love the easy questions? Brandon On 5/19/05, Ron Grabowski [EMAIL PROTECTED] wrote: You can use: lt; I find it funny that lt; and gt; are acceptable solutions (even though it works). I love sqlmap but I hate xml ! I wish sqlmap used something like velocity. There was discussion about this a while back anyone have any further information ? Huy
Where are the test cases in the source download
Are these available anywhere? Also I think the subversion repository on the web is not working. Nathan
Re: null BLOB and byte array
Paul, btye[] are objects so having them be null is just fine. byte[] test = null; I am not sure if there is a test case written for this yet. I will look into it. Nathan On May 23, 2005, at 8:35 AM, Paul Barry wrote: I have a BLOB column in my database that can be null. I want to map it to a byte[], but when I do, I get a NullPointerException. Anyway have a good way of dealing with this?
Re: null BLOB and byte array
If I change these methods in
com.ibatis.sqlmap.engine.type.BlobTypeHandlerCallback, it works fine:
public Object getResult(ResultGetter getter)
throws SQLException {
Blob blob = getter.getBlob();
if(blob != null) {
int size = (int) blob.length();
return blob.getBytes(1, size);
} else {
return null;
}
}
public void setParameter(ParameterSetter setter, Object parameter)
throws SQLException {
if(parameter != null) {
byte[] bytes = (byte[]) parameter;
setter.setBytes(bytes);
}
}
Nathan Maves wrote:
Paul,
btye[] are objects so having them be null is just fine.
byte[] test = null;
I am not sure if there is a test case written for this yet.
I will look into it.
Nathan
On May 23, 2005, at 8:35 AM, Paul Barry wrote:
I have a BLOB column in my database that can be null. I want to map
it to a byte[], but when I do, I get a NullPointerException. Anyway
have a good way of dealing with this?
Re: Merging multiple sqlmaps configurations
Sorry Martin, i have no idea what you are asking. Please be more specific. It would be helpful if you clarified what a module is and how it relates to sqlmap configurations. Does anyone else understand Martin's problem? I'm known to be dense :) Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hi, I have two modules which are totally independent from each other. Each module uses more then one resource configuration. I would like to be able to create a new module, which has a dependency to the other two modules. This new module should only know the main config file and not the implementation details of the submodules. So we have only one entry point. What I really want is to combine sets of sql resources. This case is used in a framework for java. Cheers, Martin -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Montag, 23. Mai 2005 14:26 To: ibatis-user-java@incubator.apache.org Subject: Re: Merging multiple sqlmaps configurations I'm really not sure what you are asking here. There is no way to combine two different sqlMapConfig files into one. You would have to create a new sqlMapConfig with all of the sqlMap files configured into it or load two SqlMapClients with their own sqlMapConfig files. Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hello, I've got following two sqlmaps configuration files: file1: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / /sqlMapConfig file2: sqlMapConfig sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig I'd like to merge these two files now. Is there a possability so that I do not have to create a file like this below? file3: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig Thanks, Cheers, Martin
RE: Merging multiple sqlmaps configurations
Well I think that Martin would like to be able to define separate application modules (maybe packaged as separate independent jars), each including each own SqlMaps config file. Then when assembling these modules together in a complete application, there would be a problem building a SqlMapClient from several SqlMap config files instead of only one. Just my 2 cents. -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Monday, May 23, 2005 10:25 PM To: ibatis-user-java@incubator.apache.org Subject: Re: Merging multiple sqlmaps configurations Sorry Martin, i have no idea what you are asking. Please be more specific. It would be helpful if you clarified what a module is and how it relates to sqlmap configurations. Does anyone else understand Martin's problem? I'm known to be dense :) Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hi, I have two modules which are totally independent from each other. Each module uses more then one resource configuration. I would like to be able to create a new module, which has a dependency to the other two modules. This new module should only know the main config file and not the implementation details of the submodules. So we have only one entry point. What I really want is to combine sets of sql resources. This case is used in a framework for java. Cheers, Martin -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Montag, 23. Mai 2005 14:26 To: ibatis-user-java@incubator.apache.org Subject: Re: Merging multiple sqlmaps configurations I'm really not sure what you are asking here. There is no way to combine two different sqlMapConfig files into one. You would have to create a new sqlMapConfig with all of the sqlMap files configured into it or load two SqlMapClients with their own sqlMapConfig files. Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hello, I've got following two sqlmaps configuration files: file1: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / /sqlMapConfig file2: sqlMapConfig sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig I'd like to merge these two files now. Is there a possability so that I do not have to create a file like this below? file3: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig Thanks, Cheers, Martin
Re: Where are the test cases in the source download
The tests are not in the download, only in SVN - trunk/java/mapper/mapper2/test Larry On 5/23/05, Nathan Maves [EMAIL PROTECTED] wrote: Are these available anywhere? Also I think the subversion repository on the web is not working. Nathan
Re: R: [New Feature] SQL Map Interface Binding -for your review
Thanks Fabrizio,
To clarify, yes, this is all completely optional functionality.
Cheers,
ClintonOn 5/23/05, Fabrizio Gianneschi [EMAIL PROTECTED] wrote:
I think this is a very **cool** new feature, but I would
vote for it only if it's use is optional, or completely
automated.
One of the reasons I like iBATIS is its
simplicity;this solution complicates a bit the overall design, and it's a
bit more hard to understand for a newbie. As Aitor already
notes, there is the issue of the proliferation of interfaces.
In addition, using the Object class as a parameter (and return type)
makes the coding extremely fast, when you want to do so.
What about generating the interfaces from the sql map
files? At least, generating part of them, when the I/O types are well
known.
F
Da: Clinton Begin
[mailto:[EMAIL PROTECTED]] Inviato: domenica 22 maggio 2005
18.35A: ibatis-user-java@incubator.apache.orgOggetto: [New
Feature] SQL Map Interface Binding -for your review
The dev list has already seen this. I
just want to make sure anyone who doesn't subscribe to the dev list gets a
chance to provide some
feedback...-Although
quite simple, there are some tradeoffs with the typical SqlMapClient methods
like: Document doc = (Document)
sqlMap.queryForObject(getDocument, new
Integer (1));First of all, it is possible that you could spell
getDocuments incorrectly. Second, the parameter is not strongly
typed. So at code time, you could easily pass in an inappropriate
object. Also, the return type is cast, so it's even possible for the
statement to return an invalid object (i.e. result map returns a Dog instead of
a Document). Finally, if you're using anything less than J2SE 5.0, you
have to wrap primitives with their wrapper types. DISCLAIMER: Yes,
you should have unit tests to verify this anyway! ;-)But what else can
we do about this? Well, what if we mapped the getDocument mapped
statement to an interface. For example, this one:public interface
DocumentMapper { Document getDocument (int id);}So
basically we have a method that mirrors the queryForList signature, except the
method name matches the mapped statement name, instead of passing it as a
parameter. Furthermore, as soon as the SqlMapClient is built, this method
is validated against the mapped statement to ensure that the proper parameter
and result types are defined. Finally, using the sucker is a whole lot
easier: Document doc =
documentMapper.getDocument(1);No more casting. No more
wrapping. No more ambiguous types. No more
misspelling.Sounds good, how do I create a Mapper? Well, we
already have. The interface above is all we need. A simple call to
the following SqlMapClient method, creates the instance that can be
used: DocumentMapper documentMapper = (DocumentMapper)
sqlMap.getMapper(DocumentMapper.class);The instance is thread safe, so
you can keep this sucker around as a field on your DAO or service
class.Best of all, unit testing becomes a snap, as you can mock a
DocumentMapper a heck of a lot easier than you could the SqlMapClient
interface.Alrighty! So when will it be implemented? It already is. It's in SVN right now for
your perusal, here's the unit test:
http://svn.apache.org/repos/asf/incubator/ibatis/trunk/java/mapper/mapper2/test/com/ibatis/sqlmap/BindingTest.java
The JavaDoc is below.The current implementation isn't
optimized, nor does it perform full validation. In it's current state, it's mostly intended to be
easily removed if you don't like the idea.So let us know what you
think!Cheers,Clinton
getMapperpublic java.lang.Object getMapper(java.lang.Classiface)
Returns a generated implementation of a cusom mapper class as specified by
the method parameter. The generated implementation will run mapped statements
by matching the method name to the statement name. The mapped statement
elements determine how the statement is run as per the following:
insert -- insert()
update -- update()
delete -- delete()
select -- queryForObject, queryForList or queryForMap, as
determined by signature (see below)
procedure -- determined by method name (see below) How
select statements are run is determined by the method signature, as per the
following:
Object methodName (Object param) -- queryForObject
List methodName (Object param [, int skip, int max | , int pageSize]) --
queryForList
Map methodName (Object param, String keyProp [,valueProp]) --
queryForMap How stored procedures are run is determined by the
method name, as per the following:
insertX -- insert()
createX -- insert()
updateX -- update()
saveX -- update()
deleteX -- delete()
removeX -- delete()
selectX -- queryForXx() determined by method signature as above
queryX -- queryForXx() determined by method signature as above
Recommended practice / nested ResultMaps
Given the following nested resultMap configuration with the child resultMap including a complex property that is part of the groupBy, how should the groupBy on that property be specified? I tried using the complex property name, and I tried qualifying the complex property name with the simple key-value sub-property -- neither worked properly. resultMap id="distUsagesResult" class="distUsages" groupBy="distKey, entryDate" result property="distKey" column="DistKey"/ result property="entryDate" column="Date"/ result property="org" column="Org"/ result property="costCtr" column="CostCtr"/ result property="task" column="Task"/ result property="option" column="Option"/ result property="statisticList" resultMap="StatType.statisticResult"/ /resultMap resultMap id="statisticResult" class="statistic" groupBy="distKey, entryDate, statType" !-- also triedresultMap id="statisticResult" class="statistic" groupBy="distKey, entryDate, statType.statTypeKey" -- result property="distKey" column="StatDistKey"/ result property="entryDate" column="StatEntryDate"/ result property="statType" column="StatTypeKey" select="getStatType"/ result property="numUnits" column="StatNumUnits"/ /resultMap resultMap id="statTypeResult" class="statType" result property="statTypeKey" column="StatTypeKey"/ result property="statTypeID" column="StatTypeID"/ result property="statTypeDesc" column="StatTypeDesc"/ result property="measUnits" column="MeasUnits"/ result property="numDecPlaces" column="NumDecPlaces"/ result property="org" column="Org"/ result property="account" column="Account"/ result property="costCtr" column="CostCtr"/ result property="task" column="Task"/ result property="option" column="Option"/ /resultMap Thanks thanks thanks! Karen
RE: Query performs differently in SQL Query Analyzer
When you say iBatis is doing way more than just running SQL, when does it do *way more*? Each time it encounters a new query? Just the first query it processes after startup? Is the *way more* documented somewhere? The SQL I run in Query Analyzer is exactly the same. I pulled it from the logging, which I turned off after your suggestion, but did not see a noticeable difference. -Original Message- From: Nathan Maves [mailto:[EMAIL PROTECTED] Sent: Monday, May 23, 2005 11:19 AM To: ibatis-user-java@incubator.apache.org Subject: Re: Query performs differently in SQL Query Analyzer This truly sound like a sql problem. Make sure that the sql that is generated by ibatis is what you run in your analyzer. On a side note make sure that all logging is turned off for your application. This is a huge performance hit if it is turned on for any part of your app. Nathan On May 23, 2005, at 10:53 AM, Barnett, Brian W. wrote: Yes, I did notice that subsequent times the exact same query performed better. The problem is that in our app, a teacher is presented with a list of students in her class. She wants to run a report on each one. Clicking on a student executes the query below but with a different student id. It takes over a minute each time she selects a new student. Is this because the query is not identical each time? It really does me no good that subsequent times the query runs better, because the teacher doesn't need to run the same student more than once. Suggestions? -Original Message- From: Nathan Maves [mailto:[EMAIL PROTECTED] Sent: Monday, May 23, 2005 10:59 AM To: ibatis-user-java@incubator.apache.org Subject: Re: Query performs differently in SQL Query Analyzer I think this needs a FAQ :) This has been cover quite a few times. iBatis is doing way more then just running sql. Make sure that to truly test the performance of iBatis that you run the query multiple times. The initial run is creating many object and sets everything up. Check the speed of the second and third runs to see more accurate results. Nathan On May 23, 2005, at 10:13 AM, Barnett, Brian W. wrote: I have a query that returns in 3 or 4 seconds when I run it in Microsoft SQL Query Analyzer but takes over a minute to return when run through iBATIS. Can anyone give me some clues as to what I should check? Here is the SQL Map stuff: resultMap id=student_profile_combined_result class=java.util.HashMap result property=abbrev column=abbrev nullValue=null_string/ result property=session column=session_name nullValue=null_string/ result property=display column=display nullValue=null_string/ result property=dateTested column=dateTested nullValue=null_string/ result property=proficiencyLevel column=proficiency_level nullValue=null_string/ result property=theTestScore column=the_test_score nullValue=-999/ result property=schoolScoreAvg column=schoolScoreAvg nullValue=-999/ result property=distScoreAvg column=distScoreAvg nullValue=-999/ result property=gradeLevelId column=grade_level_id nullValue=-999/ result property=schoolName column=school_name nullValue=null_string/ result property=assessmentId column=assessment_id nullValue=-999/ result property=schoolRawAvg column=schoolRawAvg nullValue=-999/ result property=distRawAvg column=distRawAvg nullValue=-999/ result property=lowcut column=lowcut nullValue=-999/ result property=highcut column=highcut nullValue=-999/ result property=prof column=prof nullValue=-999/ result property=ppId column=pp_id nullValue=-999/ result property=theRawPoints column=the_raw_points nullValue=-999/ result property=scoreMethodId column=score_method_id nullValue=-999/ result property=aboveStandard column=above_standard nullValue=-999/ result property=schoolAboveStandard column=school_above_standard nullValue=-999/ result property=districtAboveStandard column=district_above_standard nullValue=-999/ result property=sessionId column=session_id nullValue=-999/ result property=maxScore column=maxScore nullValue=-999/ result property=minScore column=minScore nullValue=-999/ /resultMap select id=getStudentProfileDataCombined resultMap=student_profile_combined_result parameterClass=java.util.HashMap $sql$ /select Here is the query: SELECT a.abbrev, tsts.session_name, tsts.session_id, y.display, ts.dateTested, ppl.proficiency_level, ts.test_score AS the_test_score, avs.schoolScoreAvg, avd.distScoreAvg, gr.grade_level_id, sc.school_name, a.assessment_id, avs.schoolRawAvg, avs.school_above_standard, avd.distRawAvg, avd.district_above_standard, pp.lowcut, pp.highcut, pp.prof, pp.pp_id, ts.test_raw_points AS the_raw_points, a.score_method_id,
Re: [HELP] I can't not type sign in my sqlmap xml file
I don't plan on promoting any templating languages. It offloads the burden to another layer. The dyanmic conditionals would get out of hand. At that point it would be far easier to handle things in java. The heirarchal nature of xml is of great importance to dynamic sql. So, i still see it as being the easiest means to manage the SQL. If you are using a template language you already violate the verasity of your sql outside of ibatis. So, lt; is a minor issue IMO. In version 3.0 one of our goals is to remove the dependency on the configuration being solely XML and allow for java based configuraiton. This would mean that the xml would be a way to implement the configuration. XML will continue to be the primary supported means of configuration because there are so many reasons to continue in this direction versus other templating languages. But, in the future if you so desire, it may be possible for you to contribute something cool with velocity. Personally, I don't think velocity would add value to the process. Brandon On 5/23/05, Huy [EMAIL PROTECTED] wrote: Brandon Goodin wrote: This is just plain funny. Can you tell that we love the easy questions? Brandon On 5/19/05, Ron Grabowski [EMAIL PROTECTED] wrote: You can use: lt; I find it funny that lt; and gt; are acceptable solutions (even though it works). I love sqlmap but I hate xml ! I wish sqlmap used something like velocity. There was discussion about this a while back anyone have any further information ? Huy
Re: Merging multiple sqlmaps configurations
Then your best bet is to create a sqlmapconfig that binds all of your sqlmaps together outside of the modules. The modules would then contain only the sqlmap files themselves. Brandon On 5/23/05, Jean-Francois Poilpret [EMAIL PROTECTED] wrote: Well I think that Martin would like to be able to define separate application modules (maybe packaged as separate independent jars), each including each own SqlMaps config file. Then when assembling these modules together in a complete application, there would be a problem building a SqlMapClient from several SqlMap config files instead of only one. Just my 2 cents. -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Monday, May 23, 2005 10:25 PM To: ibatis-user-java@incubator.apache.org Subject: Re: Merging multiple sqlmaps configurations Sorry Martin, i have no idea what you are asking. Please be more specific. It would be helpful if you clarified what a module is and how it relates to sqlmap configurations. Does anyone else understand Martin's problem? I'm known to be dense :) Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hi, I have two modules which are totally independent from each other. Each module uses more then one resource configuration. I would like to be able to create a new module, which has a dependency to the other two modules. This new module should only know the main config file and not the implementation details of the submodules. So we have only one entry point. What I really want is to combine sets of sql resources. This case is used in a framework for java. Cheers, Martin -Original Message- From: Brandon Goodin [mailto:[EMAIL PROTECTED] Sent: Montag, 23. Mai 2005 14:26 To: ibatis-user-java@incubator.apache.org Subject: Re: Merging multiple sqlmaps configurations I'm really not sure what you are asking here. There is no way to combine two different sqlMapConfig files into one. You would have to create a new sqlMapConfig with all of the sqlMap files configured into it or load two SqlMapClients with their own sqlMapConfig files. Brandon On 5/23/05, Zeltner Martin [EMAIL PROTECTED] wrote: Hello, I've got following two sqlmaps configuration files: file1: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / /sqlMapConfig file2: sqlMapConfig sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig I'd like to merge these two files now. Is there a possability so that I do not have to create a file like this below? file3: sqlMapConfig sqlMap resource=ibatis/table-keyword.xml / sqlMap resource=ibatis/table-annotation.xml / sqlMap resource=ibatis/table-file.xml / sqlMap resource=ibatis/table-link.xml / sqlMap resource=ibatis/table-book.xml / sqlMap resource=ibatis/table-formalpublication.xml / sqlMap resource=ibatis/table-referencekeywordrelationship.xml / /sqlMapConfig Thanks, Cheers, Martin
Re: database password
There are several things you can do here. You could setup a datasource that is configured via JNDI. Your datasource could draw it's credentials from elsewhere. But, the prolbem is that your credentials have to be store somewhere. So, the question really winds up being... where is a safe place to store your credentials? You could simply configure the datasource with JNDI on the container level and place the password there ouside of the deployed web application. Brandon On 5/23/05, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi, Database password is quite sensitive information and providing this in plain file is not an option for us. Is there any way to set password programmatically? Or another scenario when password is changing often... Alex
Re: Query performs differently in SQL Query Analyzer
Each time it encounters a new query? Let's define new query: SELECT * FROM STUDENT WHERE STUDENT_ID = #id# That's one query, regardless of what parameter you use for ?. In iBATIS, this is represented as: But if you have any dynamic parts to the SQL or any $substitutions$, then you are potentially creating a new query. Regardless, there is NOTHING iBATIS does that should take a minute or longer, especially after initial runs. You'll need to provide us with a lot more detail and do some of your own profiling to test out your situation properly. First of all, DO NOT compare iBATIS with queries run from Query Analyzerthat's ridiculous. You've eliminated more than iBATIS in that scenario, you've also eliminated the network, JDBC, the driver and all of your own Java code. My first questions would be: where and when do you build your SqlMapClient instance? how often are you connecting? which datasource are you using? do you have any dynamic SQL? are you using maps or beans? are you using lazy loading, join fetching, complex colum mapping via select= (N+1 selects problem)? Performance problems are hard to diagnose properly. Can you give us any more information? Clinton On 5/23/05, Barnett, Brian W. [EMAIL PROTECTED] wrote: When you say iBatis is doing way more than just running SQL, when does it do*way more*? Each time it encounters a new query? Just the first query itprocesses after startup? Is the *way more* documented somewhere? The SQL I run in Query Analyzer is exactly the same. I pulled it from thelogging, which I turned off after your suggestion, but did not see anoticeable difference.-Original Message-From: Nathan Maves [mailto: [EMAIL PROTECTED]]Sent: Monday, May 23, 2005 11:19 AMTo: ibatis-user-java@incubator.apache.orgSubject: Re: Query performs differently in SQL Query Analyzer This truly sound like a sql problem.Make sure that the sql that isgenerated by ibatis is what you run in your analyzer.On a side note make sure that all logging is turned off for yourapplication.This is a huge performance hit if it is turned on for any part of your app.NathanOn May 23, 2005, at 10:53 AM, Barnett, Brian W. wrote: Yes, I did notice that subsequent times the exact same query performed better. The problem is that in our app, a teacher is presented with a list of students in her class. She wants to run a report on each one. Clicking on a student executes the query below but with a different student id. It takes over a minute each time she selects a new student. Is this because the query is not identical each time? It really does me no good that subsequent times the query runs better, because the teacher doesn't need to run the same student more than once. Suggestions? -Original Message- From: Nathan Maves [mailto:[EMAIL PROTECTED]] Sent: Monday, May 23, 2005 10:59 AM To: ibatis-user-java@incubator.apache.org Subject: Re: Query performs differently in SQL Query Analyzer I think this needs a FAQ :) This has been cover quite a few times. iBatis is doing way more then just running sql.Make sure that to truly test the performance of iBatis that you run the query multiple times.The initial run is creating many object and sets everything up.Check the speed of the second and third runs to see more accurate results. Nathan On May 23, 2005, at 10:13 AM, Barnett, Brian W. wrote: I have a query that returns in 3 or 4 seconds when I run it in Microsoft SQL Query Analyzer but takes over a minute to return when run through iBATIS. Can anyone give me some clues as to what I should check? Here is the SQL Map stuff: resultMap id=student_profile_combined_result class=java.util.HashMap result property=abbrev column=abbrev nullValue=null_string/ result property=session column=session_name nullValue=null_string/ result property=display column=display nullValue=null_string/ result property=dateTested column=dateTested nullValue=null_string/ result property=proficiencyLevel column=proficiency_level nullValue=null_string/ result property=theTestScore column=the_test_score nullValue=-999/ result property=schoolScoreAvg column=schoolScoreAvg nullValue=-999/ result property=distScoreAvg column=distScoreAvg nullValue=-999/ result property=gradeLevelId column=grade_level_id nullValue=-999/ result property=schoolName column=school_name nullValue=null_string/ result property=assessmentId column=assessment_id nullValue=-999/ result property=schoolRawAvg column=schoolRawAvg nullValue=-999/ result property=distRawAvg column=distRawAvg nullValue=-999/ result property=lowcut column=lowcut nullValue=-999/ result property=highcut column=highcut nullValue=-999/ result property=prof column=prof nullValue=-999/ result property=ppId column=pp_id nullValue=-999/ result property=theRawPoints column=the_raw_points nullValue=-999/ result property=scoreMethodId column=score_method_id nullValue=-999/ result property=aboveStandard column=above_standard nullValue=-999/ result property=schoolAboveStandard
RE: Query performs differently in SQL Query Analyzer [SOLVED]
Title: Message
I
decided to attempt to eliminate the items that Clinton had mentioned were
outside the iBATIS framework (network, JDBC, driver). I started by swapping out
the Microsoft JDBC driver with the jTDS JDBC driver for SQL Server (http://jtds.sourceforge.net/) and that
fixed the performance problem with this particular query... woo
ho!!!
We
have yet to do complete testing throughout the rest of the application, but we
are hopeful that all other queries will perform at least as well as they did
with the Microsoft driver.
Thank
you all for your input.
Brian
Barnett
-Original Message-From: Barnett, Brian
W. Sent: Monday, May 23, 2005 2:19 PMTo:
'ibatis-user-java@incubator.apache.org'Subject: RE: Query performs
differently in SQL Query Analyzer
where and when do you build
your SqlMapClient instance? We used JPetStore 4 as a model for using
iBATIS. We have a DaoManager singleton that gets created during app startup.
dao.xml and sql-map-config.xml files are parsed and the DaoManager
caches instances of our daos.
how often are you
connecting?Not sure how to answer this.
which datasource are you
using?Snippet from sql-map-configsqlMapConfig
settingscacheModelsEnabled="true"enhancementEnabled="true"lazyLoadingEnabled="true"useStatementNamespaces="false"maxSessions="128"maxTransactions="32"maxRequests="512"/
transactionManager
type="JDBC"dataSource
type="JNDI"property name="DataSource"
value="java:comp/env/bppool"//dataSource/transactionManager
are you using lazy
loading?Yes
join fetching?Don't
know
complex column mapping via
select="" (N+1 selects problem)?No
Here is some additional
information:1.We run many, many queries through our web app and none
of the others exhibit this behavior.2.The performance problem is not
seen on smaller databases. (smaller number of rows in tables.)3.The
following line of code takes 55 seconds to executea.return
executeQueryForList("getStudentProfileDataCombined",
paramMap);b.Where paramMap has one entry called "sql" which contains
the SQL statement.4.Subsequent calls to the above line of code for
the same student come back in 1 second.5.We're running 2.0.0 RC5
Build 274.
-Original Message-From: Clinton Begin
[mailto:[EMAIL PROTECTED] Sent: Monday, May 23, 2005 12:30
PMTo: ibatis-user-java@incubator.apache.orgSubject:
Re: Query performs differently in SQL Query
AnalyzerEach time it encounters a new
query?Let's define new query:SELECT * FROM STUDENT WHERE
STUDENT_ID = #id#That's one query, regardless of what parameter you
use for ?. In iBATIS, this is represented as:But if you have
any dynamic parts to the SQL or any $substitutions$, then you are
potentially creating a new query. Regardless, there is NOTHING
iBATIS does that should take a minute or longer, especially after initial
runs.You'll need to provide us with a lot more detail and do some of
your own profiling to test out your situation properly.First of all,
DO NOT compare iBATIS with queries run from Query Analyzerthat's
ridiculous. You've eliminated more than iBATIS in that scenario,
you've also eliminated the network, JDBC, the driver and all of your own
Java code. My first questions would be: where and when
do you build your SqlMapClient instance? how often are you
connecting? which datasource are you using? do you have any
dynamic SQL? are you using maps or beans? are you using lazy
loading, join fetching, complex colum mapping via select="" (N+1 selects
problem)?Performance problems are hard to diagnose properly.
Can you give us any more information?Clinton
On 5/23/05, Barnett,
Brian W. [EMAIL PROTECTED]
wrote:
When
you say iBatis is doing way more than just running SQL, when does it
do*way more*? Each time it encounters a new query? Just the first
query itprocesses after startup? Is the *way more* documented
somewhere?The SQL I run in Query Analyzer is exactly the same. I
pulled it from thelogging, which I turned off after your suggestion,
but did not see anoticeable difference.-Original
Message-From: Nathan Maves [mailto: [EMAIL PROTECTED]]Sent:
Monday, May 23, 2005 11:19 AMTo: ibatis-user-java@incubator.apache.orgSubject:
Re: Query performs differently in SQL Query Analyzer This
truly sound like a sql problem.Make sure that the sql that
isgenerated by ibatis is what you run in your analyzer.On a
side note make sure that all logging is turned off for
yourapplication.This is a huge performance hit if it is
turned on for any part of your app.NathanOn May 23,
2005, at 10:53 AM, Barnett, Brian W. wrote: Yes, I did notice
that subsequent times the exact same query performed better. The
problem
Re: complex inserts?
That all sounds like logic for your DAO or business layer. SQL maps are more fine-grained that that. Larry On 5/23/05, Lieven De Keyzer [EMAIL PROTECTED] wrote: In fact, it's even complexer than this, because when a certain notification is given as parameter and it is not present yet, is should be inserted, when it is present, nothing should happen, and when it's not given as parameter, it should be deleted.
Re: Feature Request
SqlMapClientBuilder takes a reader. If you have a String in memory then why couldn't you use a StringReader? Brandon On 5/23/05, Rob Butler [EMAIL PROTECTED] wrote: Hello, I am building an application that will need to dynamically build an SQL statement at run time, and then populate the statement's fields from a map. Sounds perfect for iBatis, right. That's what I thought, but I don't think iBatis does quite what I need. Normally iBatis can dynamically change it's SQL but you need to know things like the number, name type of columns in advance when the SqlMap is created. Unfortunately in my application, the SQL statement that is built at runtime is completely dynamic. The name of the columns, their data types and the number of columns will only be known at run time. So what I would like to do is dynamically instantiate an SqlMapClient from a String, which contains the SqlMap that is dynamically generated at run time. Then let iBatis do the work of converting the map's values into the correct data types and populating the SQL's field values. It would be nice if the table name could be passed as a property instead of in the map of data. This looks like it would be possible with the SqlMapClientBuilder, but I don't think that is going to work. The problem is it wants to read an SqlMapConfig, which then of course points to an SqlMap file. However, the SqlMap file obviously won't exist anywhere but as a string in ram, and it's not possible (as far as I know) to directly load an SqlMap using SqlMapClientBuilder, nor is it possible to load a single file (string in ram) that is a combined SqlMapConfig SqlMap. I could probably cobble something together using the internal non-user exposed classes within iBatis, but then if those classes change from one release to the next I would have to make the appropriate changes to my code, and I would prefer to use something that is part of iBatis. So, I would like to request a feature to make dynamically building the SqlMap at runtime possible. I suppose this could be done by developing a class like SqlMapClientBuilder that accepted a String, and didn't need an SqlMapConfig, just a SqlMap XML. Alternately, a fixed API could be exposed to users to manually construct a SqlClientMap. Thoughts? Is there a better approach that works now? Did I miss something obvious? Thanks, and iBatis rocks! Rob __ Do you Yahoo!? Yahoo! Small Business - Try our new Resources site http://smallbusiness.yahoo.com/resources/
Re: Feature Request
I've solved this one before by generating a temp file, grabbing the
absolute path, turning it into a url, assigning that to a property
with the key MAP_FILE and then putting this in my main config:
sqlMap url=${MAP_FILE}/
Which resolves to:
sqlMap url=file://localhost/tmp/ibatis345875.xml/
Or some such thing (the localhost bit seems to be required for windows
but not for Unix flavours).
Nice thing about this is that the generated file on disk is easy to
debug, just log out the temp file location after generating it.
Re: complex inserts?
From: Larry Meadors [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: ibatis-user-java@incubator.apache.org
Subject: Re: complex inserts?
Date: Mon, 23 May 2005 21:50:01 -0600
That all sounds like logic for your DAO or business layer.
SQL maps are more fine-grained that that.
Larry
On 5/23/05, Lieven De Keyzer [EMAIL PROTECTED] wrote:
In fact, it's even complexer than this, because when a certain
notification
is given as parameter and it is not present yet, is should be inserted,
when
it is present, nothing should happen, and when it's not given as
parameter,
it should be deleted.
Hmm, I see. But these notificationWays belong to a Bookmark I think. So I
should make these kind of test in the DAO layer. And make separate insert
etc. statements for the bookmark table and for the notifications table?
But is it ok, to do something like:
updateBookmark(Bookmark){
update(updateBookmark, bookmark);
List notif = queryForList(getNotificationsByBookmark, bookmark);
//perform various tests to see which notifications are already present
and wich are not.
//insert some notifications, update some and delete some
}
