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Posted to user@cayenne.apache.org by Andrus Adamchik <an...@objectstyle.org> on 2007/11/26 12:23:18 UTC
Re: Deletion of objects
Would be nice to open a Jira with details. We should be able to do
something about it.
Andrus
On Nov 22, 2007, at 12:43 AM, Jan Lendholt wrote:
> Okay, I found the error - I used a wrong datatype for the
> matchExpression.
> Well, in fact this is a stupid mistake by me; but in my opinion the
> framework could handle this more smoothly.
>
> Just told you this nice exception as a illustration on how difficult
> it could become working with cayenne if one is just a bit hasty on
> cayennes use.
> I think that hibernate in this context is more reliable; but
> therefore requires more work to be running at first.
> But dont want to talk about that now.
>
> Greets Jan
>
>
>
>> From: jlendholt@hotmail.com
>> To: user@cayenne.apache.org
>> Subject: RE: Deletion of obejcts
>> Date: Wed, 21 Nov 2007 22:38:34 +0000
>>
>> Hey Kevin,
>>
>> here is one of those exceptions I cannot get used to:
>>
>> java.lang.NullPointerException
>> at
>> org
>> .apache
>> .cayenne
>> .access
>> .trans
>> .QualifierTranslator.appendObjectMatch(QualifierTranslator.java:153)
>> at
>> org
>> .apache
>> .cayenne
>> .access.trans.QualifierTranslator.endNode(QualifierTranslator.java:
>> 321)
>> at org.apache.cayenne.exp.Expression.traverse(Expression.java:520)
>> at org.apache.cayenne.exp.Expression.traverse(Expression.java:511)
>> at org.apache.cayenne.exp.Expression.traverse(Expression.java:491)
>> at
>> org
>> .apache
>> .cayenne
>> .access
>> .trans.QualifierTranslator.doTranslation(QualifierTranslator.java:74)
>> at
>> org
>> .apache
>> .cayenne
>> .access
>> .trans.SelectTranslator.createSqlString(SelectTranslator.java:129)
>> at
>> org
>> .apache
>> .cayenne
>> .access.trans.QueryAssembler.createStatement(QueryAssembler.java:95)
>> at
>> org
>> .apache
>> .cayenne.access.jdbc.SelectAction.performAction(SelectAction.java:71)
>> at
>> org
>> .apache
>> .cayenne
>> .access.DataNodeQueryAction.runQuery(DataNodeQueryAction.java:59)
>> at
>> org.apache.cayenne.access.DataNode.performQueries(DataNode.java:273)
>> at
>> org
>> .apache
>> .cayenne
>> .access.DataDomainQueryAction.runQuery(DataDomainQueryAction.java:
>> 301)
>> at org.apache.cayenne.access.DataDomainQueryAction.access
>> $000(DataDomainQueryAction.java:60)
>> at org.apache.cayenne.access.DataDomainQueryAction
>> $1.transform(DataDomainQueryAction.java:273)
>> at
>> org
>> .apache.cayenne.access.DataDomain.runInTransaction(DataDomain.java:
>> 836)
>> at
>> org
>> .apache
>> .cayenne
>> .access
>> .DataDomainQueryAction
>> .runQueryInTransaction(DataDomainQueryAction.java:270)
>> at
>> org
>> .apache
>> .cayenne
>> .access.DataDomainQueryAction.execute(DataDomainQueryAction.java:110)
>> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:
>> 746)
>> at
>> org
>> .apache
>> .cayenne
>> .util
>> .ObjectContextQueryAction.runQuery(ObjectContextQueryAction.java:217)
>> at
>> org
>> .apache
>> .cayenne
>> .access.DataContextQueryAction.execute(DataContextQueryAction.java:
>> 54)
>> at
>> org.apache.cayenne.access.DataContext.onQuery(DataContext.java:1387)
>> at
>> org
>> .apache
>> .cayenne
>> .util
>> .ObjectContextQueryAction.runQuery(ObjectContextQueryAction.java:217)
>> at
>> org
>> .apache
>> .cayenne
>> .access.DataContextQueryAction.execute(DataContextQueryAction.java:
>> 54)
>> at
>> org.apache.cayenne.access.DataContext.onQuery(DataContext.java:1387)
>> at
>> org.apache.cayenne.access.DataContext.performQuery(DataContext.java:
>> 1376)
>> at
>> ams
>> .maintabpanes
>> .buchungdetail
>> .SingleBuchungContentPaneCatering
>> .<init>(SingleBuchungContentPaneCatering.java:195)
>> at
>> ams
>> .maintabpanes
>> .buchungdetail
>> .BuchungDetailWindowPane.<init>(BuchungDetailWindowPane.java:103)
>> at ams.maintabpanes.event.EventTabPane
>> $4.actionPerformed(EventTabPane.java:522)
>> at
>> nextapp
>> .echo2
>> .app.button.AbstractButton.fireActionPerformed(AbstractButton.java:
>> 135)
>> at nextapp.echo2.app.button.AbstractButton
>> $1.actionPerformed(AbstractButton.java:100)
>> at
>> nextapp
>> .echo2
>> .app
>> .button
>> .DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:70)
>> at
>> nextapp
>> .echo2
>> .app.button.DefaultButtonModel.doAction(DefaultButtonModel.java:58)
>> at
>> nextapp
>> .echo2.app.button.AbstractButton.doAction(AbstractButton.java:121)
>> at
>> nextapp
>> .echo2.app.button.AbstractButton.processInput(AbstractButton.java:
>> 506)
>> at
>> nextapp
>> .echo2
>> .app.update.ClientUpdateManager.process(ClientUpdateManager.java:116)
>> at
>> nextapp
>> .echo2
>> .app.update.UpdateManager.processClientUpdates(UpdateManager.java:89)
>> at
>> nextapp
>> .echo2
>> .webcontainer
>> .ContainerSynchronizeService
>> .renderUpdate(ContainerSynchronizeService.java:472)
>> at
>> nextapp
>> .echo2
>> .webrender
>> .service.SynchronizeService.service(SynchronizeService.java:279)
>> at
>> nextapp
>> .echo2.webrender.WebRenderServlet.process(WebRenderServlet.java:276)
>> at
>> nextapp
>> .echo2.webrender.WebRenderServlet.doPost(WebRenderServlet.java:192)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
>> at ams.AMSServlet.service(AMSServlet.java:36)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>> at
>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
>> 356)
>> at org.mortbay.jetty.servlet.WebApplicationHandler
>> $Chain.doFilter(WebApplicationHandler.java:342)
>> at
>> org
>> .apache
>> .cayenne
>> .conf
>> .WebApplicationContextFilter
>> .doFilter(WebApplicationContextFilter.java:91)
>> at org.mortbay.jetty.servlet.WebApplicationHandler
>> $Chain.doFilter(WebApplicationHandler.java:334)
>> at
>> org
>> .mortbay
>> .jetty
>> .servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:
>> 286)
>> at
>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
>> 567)
>> at org.mortbay.http.HttpContext.handle(HttpContext.java:1776)
>> at
>> org
>> .mortbay
>> .jetty
>> .servlet.WebApplicationContext.handle(WebApplicationContext.java:514)
>> at org.mortbay.http.HttpContext.handle(HttpContext.java:1726)
>> at org.mortbay.http.HttpServer.service(HttpServer.java:879)
>> at org.mortbay.http.HttpConnection.service(HttpConnection.java:
>> 790)
>> at
>> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:952)
>> at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)
>> at
>> org
>> .mortbay.http.SocketListener.handleConnection(SocketListener.java:
>> 196)
>> at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>> at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:487)
>>
>>
>> Well, the only thing I was doing was setting up a select query end
>> performing the query. I received this.
>>
>> How shall someone solve this issue without having a look into
>> cayenne's sources?
>> I developed quite a few frameworks for company-internal uses and I
>> am ALWAYS checking, if all possible exceptions are correctly caught
>> and at least giving a possible reasong for an exception. For now, I
>> did not solve the problem but guess, there something wrong in my
>> statement; but even if: The framework should handle this more
>> gently telling me where the problem exactly lies.
>>
>> Thanks a lot.
>>
>> Jan
>>
>>
>>> Date: Mon, 19 Nov 2007 20:16:04 -0500
>>> Subject: Re: Deletion of obejcts
>>> From: kmenard@servprise.com
>>> To: user@cayenne.apache.org
>>>
>>> If you're having another issue, please start a new thread and post
>>> the
>>> relevant code snippets and exception message. I'll be the first
>>> to beat up
>>> on Cayenne's error messages, so if you can give concrete examples
>>> of where
>>> they fail, I'll try to get them fixed for you.
>>>
>>>
>>> On 11/19/07 7:10 PM, "Jan Lendholt" <jl...@hotmail.com> wrote:
>>>
>>>> Thanks all for your replies. I will try that one out (deleting an
>>>> iterator).
>>>>
>>>> but, yet another problem: Ich use an object and say:
>>>> object.removeFromTestArray(Test);
>>>> Afterwards I call Test.getDataContext().commitChanges() to make
>>>> these changes
>>>> persistent; but all I get is a "Null Objectid" exception which is
>>>> yet again an
>>>> exception which requires a good overview over cayenne's
>>>> internals; to me and
>>>> all my people around these error messages cayenne throws are not
>>>> just a bit
>>>> intuitive :(
>>>>
>>>> _________________________________________________________________
>>>> Neu: Internet Explorer 7 optimiert für MSN!
>>>> http://optimize.de.msn.com/default.aspx?mkt=de-de
>>>
>>> --
>>> Kevin Menard
>>> Servprise International, Inc.
>>> Remote reboot & power control for network equipment
>>> www.servprise.com +1 508.892.3823 x308
>>>
>>
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