April 2008 - hibernate-dev - Jboss List Archives

Build failed in Hudson: hibernate-testsuite-db » sybase12,UNIX-slim #33

by jboss-qa-internal＠redhat.com

See http://hudson.qa.jboss.com/hudson/job/hibernate-testsuite-db/./DATABASE=s... ------------------------------------------ started Building remotely on dev09 Updating http://anonsvn.jboss.org/repos/qa/hudson/trunk/scripts/common At revision 675 Updating http://anonhibernate.labs.jboss.com/core/trunk/testsuite FATAL: null java.lang.NullPointerException at org.tmatesoft.svn.core.internal.wc.SVNUpdateEditor.changeFileProperty(SVNUpdateEditor.java:382) at org.tmatesoft.svn.core.internal.wc.SVNCancellableEditor.changeFileProperty(SVNCancellableEditor.java:133) at org.tmatesoft.svn.core.internal.io.dav.handlers.DAVEditorHandler.endElement(DAVEditorHandler.java:301) at org.tmatesoft.svn.core.internal.io.dav.handlers.BasicDAVHandler.endElement(BasicDAVHandler.java:70) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:658) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:623) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:203) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:288) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:237) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:225) at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:219) at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:211) at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.update(DAVRepository.java:610) at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:162) at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:382) at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:354) at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1093) at hudson.remoting.UserRequest.perform(UserRequest.java:69) at hudson.remoting.UserRequest.perform(UserRequest.java:23) at hudson.remoting.Request$2.run(Request.java:200) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269) at java.util.concurrent.FutureTask.run(FutureTask.java:123) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676) at java.lang.Thread.run(Thread.java:595)

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Build failed in Hudson: hibernate-testsuite-db » mssql-msjdbc,UNIX-slim #33

by jboss-qa-internal＠redhat.com

See http://hudson.qa.jboss.com/hudson/job/hibernate-testsuite-db/./DATABASE=m... ------------------------------------------ started Building remotely on dev09 Updating http://anonsvn.jboss.org/repos/qa/hudson/trunk/scripts/common At revision 675 Updating http://anonhibernate.labs.jboss.com/core/trunk/testsuite FATAL: null java.lang.NullPointerException at org.tmatesoft.svn.core.internal.wc.SVNUpdateEditor.changeFileProperty(SVNUpdateEditor.java:382) at org.tmatesoft.svn.core.internal.wc.SVNCancellableEditor.changeFileProperty(SVNCancellableEditor.java:133) at org.tmatesoft.svn.core.internal.io.dav.handlers.DAVEditorHandler.endElement(DAVEditorHandler.java:301) at org.tmatesoft.svn.core.internal.io.dav.handlers.BasicDAVHandler.endElement(BasicDAVHandler.java:70) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:658) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:623) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:203) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:288) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:237) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:225) at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:219) at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:211) at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.update(DAVRepository.java:610) at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:162) at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:382) at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:354) at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1093) at hudson.remoting.UserRequest.perform(UserRequest.java:69) at hudson.remoting.UserRequest.perform(UserRequest.java:23) at hudson.remoting.Request$2.run(Request.java:200) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269) at java.util.concurrent.FutureTask.run(FutureTask.java:123) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676) at java.lang.Thread.run(Thread.java:595)

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Hudson build is back to stable: hibernate-3.2 » pgsql,linux-slim #83

by jboss-qa-internal＠redhat.com

See http://hudson.qa.jboss.com/hudson/job/hibernate-3.2/./TEST_DATABASE=pgsql...

16 years

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Hudson build is back to stable: hibernate-3.2 » oracle9i,linux-slim #83

by jboss-qa-internal＠redhat.com

See http://hudson.qa.jboss.com/hudson/job/hibernate-3.2/./TEST_DATABASE=oracl...

16 years

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Extended sessions and (lack of) recovery from Hibernate exceptions (ie: validation)

by Vallon, Justin

Suppose a field has a validator, and the field is made invalid (age < 0). When flushing, the validator runs, and throws an exception. The exception handling section (<http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#transac tions-demarcation-exceptions>) states that if any method throws an exception, the session must be closed. So, what to do if session-per-conversation is used? If hibernate validation is used, then flush of invalid data corrupts the session - the application then needs to ask the user to start over, or else build complex recovery logic (new session, copy data to new session) - effectively reducing session-per-conversation to session-per-transaction, since the application needs to be able to replay transactions that fail due to validation. How does hibernate validation interact with extended sessions? -Justin office 8-383-6725, 212-272-6725; cell 917-861-6042 *********************************************************************** Bear Stearns is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. ***********************************************************************

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Delivery Failure

by Postmaster

--------------------------------------------------------------------------------- The message you sent to iso-power.com/ronnie was rejected because it would exceed the quota for the mailbox. The subject of the message follows: Subject: *SpamL2* Don't pay too much for your drugs. Buy from us. ---------------------------------------------------------------------------------

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Delivery Failure

by Postmaster

--------------------------------------------------------------------------------- The message you sent to usm59.net/contact was rejected because it would exceed the quota for the mailbox. The subject of the message follows: Subject: THE BIGGEST BUTT! ---------------------------------------------------------------------------------

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Build failed in Hudson: hibernate-testsuite-db » pgsql82,UNIX-slim #21

by jboss-qa-internal＠redhat.com

See http://hudson.qa.jboss.com/hudson/job/hibernate-testsuite-db/./DATABASE=p... ------------------------------------------ [...truncated 6679 lines...] Finding class java.util.forkOpts Finding class groovy.lang.forkOpts Couldn't load Resource groovy/lang/forkOpts.groovy Finding class groovy.util.forkOpts Couldn't load Resource groovy/util/forkOpts.groovy Finding class forkOpts Couldn't load Resource forkOpts.groovy Finding class java.lang.hbProps Finding class java.io.hbProps Finding class java.net.hbProps Finding class java.util.hbProps Finding class groovy.lang.hbProps Couldn't load Resource groovy/lang/hbProps.groovy Finding class groovy.util.hbProps Couldn't load Resource groovy/util/hbProps.groovy Finding class hbProps Couldn't load Resource hbProps.groovy Finding class java.lang.Properties Finding class java.io.Properties Finding class java.net.Properties Class java.util.Properties loaded from parent loader (parentFirst) Finding class java.lang.FileInputStream Finding class java.lang.jdbcUrl Finding class java.io.jdbcUrl Finding class java.net.jdbcUrl Finding class java.util.jdbcUrl Finding class groovy.lang.jdbcUrl Couldn't load Resource groovy/lang/jdbcUrl.groovy Finding class groovy.util.jdbcUrl Couldn't load Resource groovy/util/jdbcUrl.groovy Finding class jdbcUrl Couldn't load Resource jdbcUrl.groovy Finding class java.lang.jdbcUser Finding class java.io.jdbcUser Finding class java.net.jdbcUser Finding class java.util.jdbcUser Finding class groovy.lang.jdbcUser Couldn't load Resource groovy/lang/jdbcUser.groovy Finding class groovy.util.jdbcUser Couldn't load Resource groovy/util/jdbcUser.groovy Finding class jdbcUser Couldn't load Resource jdbcUser.groovy Finding class java.lang.jdbcPass Finding class java.io.jdbcPass Finding class java.net.jdbcPass Finding class java.util.jdbcPass Finding class groovy.lang.jdbcPass Couldn't load Resource groovy/lang/jdbcPass.groovy Finding class groovy.util.jdbcPass Couldn't load Resource groovy/util/jdbcPass.groovy Finding class jdbcPass Couldn't load Resource jdbcPass.groovy Finding class java.lang.dbDialect Finding class java.io.dbDialect Finding class java.net.dbDialect Finding class java.util.dbDialect Finding class groovy.lang.dbDialect Couldn't load Resource groovy/lang/dbDialect.groovy Finding class groovy.util.dbDialect Couldn't load Resource groovy/util/dbDialect.groovy Finding class dbDialect Couldn't load Resource dbDialect.groovy Finding class java.lang.FileOutputStream Finding class java.lang.exec Finding class java.io.exec Finding class java.net.exec Finding class java.util.exec Finding class groovy.lang.exec Couldn't load Resource groovy/lang/exec.groovy Finding class groovy.util.exec Couldn't load Resource groovy/util/exec.groovy Finding class exec Couldn't load Resource exec.groovy Finding class java.lang.countFamilies Finding class java.io.countFamilies Finding class java.net.countFamilies Finding class java.util.countFamilies Finding class groovy.lang.countFamilies Couldn't load Resource groovy/lang/countFamilies.groovy Finding class groovy.util.countFamilies Couldn't load Resource groovy/util/countFamilies.groovy Finding class countFamilies Couldn't load Resource countFamilies.groovy Finding class java.lang.ant Finding class java.io.ant Finding class java.net.ant Finding class java.util.ant Finding class groovy.lang.ant Couldn't load Resource groovy/lang/ant.groovy Finding class groovy.util.ant Couldn't load Resource groovy/util/ant.groovy Finding class ant Couldn't load Resource ant.groovy Finding class java.lang.properties Finding class java.io.properties Finding class java.net.properties Finding class java.util.properties Finding class groovy.lang.properties Couldn't load Resource groovy/lang/properties.groovy Finding class groovy.util.properties Couldn't load Resource groovy/util/properties.groovy Finding class properties Couldn't load Resource properties.groovy Finding class java.lang.osFamily Finding class java.io.osFamily Finding class java.net.osFamily Finding class java.util.osFamily Finding class groovy.lang.osFamily Couldn't load Resource groovy/lang/osFamily.groovy Finding class groovy.util.osFamily Couldn't load Resource groovy/util/osFamily.groovy Finding class osFamily Couldn't load Resource osFamily.groovy Finding class java.lang.shell Finding class java.io.shell Finding class java.net.shell Finding class java.util.shell Finding class groovy.lang.shell Couldn't load Resource groovy/lang/shell.groovy Finding class groovy.util.shell Couldn't load Resource groovy/util/shell.groovy Finding class shell Couldn't load Resource shell.groovy Finding class java.lang.shellOpts Finding class java.io.shellOpts Finding class java.net.shellOpts Finding class java.util.shellOpts Finding class groovy.lang.shellOpts Couldn't load Resource groovy/lang/shellOpts.groovy Finding class groovy.util.shellOpts Couldn't load Resource groovy/util/shellOpts.groovy Finding class shellOpts Couldn't load Resource shellOpts.groovy Finding class groovy.runtime.metaclass.dbtestMetaClass Finding class dbtestBeanInfo Couldn't load Resource dbtestBeanInfo.groovy Class java.util.Properties loaded from parent loader (parentFirst) Finding class groovy.runtime.metaclass.java.util.PropertiesMetaClass Finding class groovy.runtime.metaclass.java.io.FileInputStreamMetaClass Finding class org.codehaus.groovy.runtime.RegexSupport Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/RegexSupport.class Class org.codehaus.groovy.runtime.RegexSupport loaded from ant loader (parentFirst) Finding class groovy.runtime.metaclass.java.io.FileOutputStreamMetaClass Finding class groovy.runtime.metaclass.dbtest$_run_closure1MetaClass Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$MethodChooser Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$MethodChooser.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$MethodChooser loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$1 Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$1.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$1 loaded from ant loader (parentFirst) Finding class groovy.lang.ClosureBeanInfo Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$2 Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$2.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$2 loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$3 Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$3.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$3 loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$4 Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$4.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$4 loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$5 Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$5.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$5 loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$6 Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$6.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$6 loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$StandardClosureChooser Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$StandardClosureChooser.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$StandardClosureChooser loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$NormalMethodChooser Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/metaclass/ClosureMetaClass$NormalMethodChooser.class Class org.codehaus.groovy.runtime.metaclass.ClosureMetaClass$NormalMethodChooser loaded from ant loader (parentFirst) Finding class groovy.xml.QName Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar groovy/xml/QName.class Class groovy.xml.QName loaded from ant loader (parentFirst) Class org.xml.sax.helpers.AttributesImpl loaded from parent loader (parentFirst) Condition false; not setting os.dos Finding class groovy.runtime.metaclass.dbtest$_run_closure2MetaClass Condition true; setting os.unix to true Setting project property: os.unix -> true Finding class groovy.runtime.metaclass.java.lang.IntegerMetaClass Finding class org.codehaus.groovy.runtime.typehandling.NumberMath Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/typehandling/NumberMath.class Class org.codehaus.groovy.runtime.typehandling.NumberMath loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.typehandling.IntegerMath Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/typehandling/IntegerMath.class Class org.codehaus.groovy.runtime.typehandling.IntegerMath loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.typehandling.LongMath Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/typehandling/LongMath.class Class org.codehaus.groovy.runtime.typehandling.LongMath loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.typehandling.FloatingPointMath Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/typehandling/FloatingPointMath.class Class org.codehaus.groovy.runtime.typehandling.FloatingPointMath loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.typehandling.BigDecimalMath Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/typehandling/BigDecimalMath.class Class org.codehaus.groovy.runtime.typehandling.BigDecimalMath loaded from ant loader (parentFirst) Finding class org.codehaus.groovy.runtime.typehandling.BigIntegerMath Loaded from /qa/tools/opt/groovy-1.5.0/embeddable/groovy-all-1.5.0.jar org/codehaus/groovy/runtime/typehandling/BigIntegerMath.class Class org.codehaus.groovy.runtime.typehandling.BigIntegerMath loaded from ant loader (parentFirst) Finding class groovy.runtime.metaclass.dbtest$_run_closure3MetaClass [exec] Current OS is Linux [exec] Executing 'bash' with arguments: [exec] '-c' [exec] 'mvn -Dcodehaus-repo -Djboss-repo -Djdbc-drivers-repo -Djdbc.url=jdbc:postgresql://dev01.qa.atl2.redhat.com:5432:hibernate -Djdbc.user=hibernate -Djdbc.pass=hibernate -P pgsql8 clean verify ' [exec] [exec] The ' characters around the executable and arguments are [exec] not part of the command. Execute:Java13CommandLauncher: Executing 'bash' with arguments: '-c' 'mvn -Dcodehaus-repo -Djboss-repo -Djdbc-drivers-repo -Djdbc.url=jdbc:postgresql://dev01.qa.atl2.redhat.com:5432:hibernate -Djdbc.user=hibernate -Djdbc.pass=hibernate -P pgsql8 clean verify ' The ' characters around the executable and arguments are not part of the command. [exec] [INFO] Scanning for projects... [exec] WAGON_VERSION: 1.0-beta-2 [exec] [INFO] ------------------------------------------------------------------------ [exec] [INFO] Building Hibernate Testsuite [exec] [INFO] task-segment: [clean, verify] [exec] [INFO] ------------------------------------------------------------------------ [exec] [INFO] [clean:clean] [exec] [INFO] snapshot org.hibernate:hibernate-core:3.3.0-SNAPSHOT: checking for updates from qa-jdbc-drivers [exec] [INFO] ------------------------------------------------------------------------ [exec] [ERROR] BUILD ERROR [exec] [INFO] ------------------------------------------------------------------------ [exec] [INFO] Error building POM (may not be this project's POM). [exec] Project ID: org.hibernate:hibernate-core [exec] Reason: Error getting POM for 'org.hibernate:hibernate-core' from the repository: Unable to store local copy of metadata: Error updating group repository metadata [exec] org.hibernate:hibernate-core:pom:3.3.0-SNAPSHOT [exec] for project org.hibernate:hibernate-core [exec] [INFO] ------------------------------------------------------------------------ [exec] [INFO] For more information, run Maven with the -e switch [exec] [INFO] ------------------------------------------------------------------------ [exec] [INFO] Total time: 6 seconds [exec] [INFO] Finished at: Tue Apr 01 10:47:43 EDT 2008 [exec] [INFO] Final Memory: 35M/64M [exec] [INFO] ------------------------------------------------------------------------ [exec] Result: 1 [groovy] statements executed successfully BUILD SUCCESSFUL Total time: 21 seconds Recording test results No test report files were found. Configuration error?

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2nd-level cache suggestions

by Alex Besogonov

Good <time-of-day>! I'm writing a custom "lazy materialized" multimap collection for Hibernate. The main reason I'm doing this is that I want to use 2nd-level cache. So far, I've found several problems with the way caching is implemented in Hibernate: 1. Collections are not cached unless they are completely initialized. That kind of kills the possibility of cached extra lazy collections. 2. Collection loading can be VERY slow. The "initializeFromCache" method of the built-in Hibernate collections looks something like: ======== public void initializeFromCache(CollectionPersister persister, Serializable disassembled, Object owner) throws HibernateException { Serializable[] array = ( Serializable[] ) disassembled; int size = array.length; beforeInitialize( persister, size ); for ( int i = 0; i < size; i++ ) { list.add( persister.getElementType().assemble( array[i], getSession(), owner ) ); } } ======== If the collection elements are pushed out of the cache (and its a quite probable situation with large collections) - we'll have N+1 selects problem. 3. Mass operations API for caches is not used in Hibernate. Some caches support bulk loading APIs (usually in forms like 'getAll(Collection keys)'). We can greatly speedup the 2nd-level caches by using these APIs (when available, of course). I propose the following solutions: 1. I think it's possible to add a manual collection cache entry update in the postAction() callback. And it'll probably work. 2. This one is much harder to fix. I'm planning to add a special flag "onlyCached" to the LoadEvent and add the corresponding functionality to the DefaultLoadEventListener. So I'll have something like: ======== public void initializeFromCache(CollectionPersister persister, Serializable disassembled, Object owner) throws HibernateException { Serializable[] array = ( Serializable[] ) disassembled; int size = array.length; Object [] loaded=new Object[size]; List notInCache=new ArrayList(); beforeInitialize( persister, size ); for ( int i = 0; i < size; i++ ) { loaded[i]=session.tryToLoadFromCache(array[i], owner); if (loaded[i]==null) notInCache.add(array[i]); } Iterator entities=getSession().createCriteria( persister.getElementType().getName()) .add(Restrictions.in("id",notInCache)) .iterate(); for(int i=0; i < size; i++) { if (loaded[i]!=null) list.add(loaded[i]); else list.add(entities.next()); } } ======== 3. This is a fairly large task, which requires changing some of Hibernate fundamentals (like LoadEvent). But I think I can do it. Any thoughts? Am I stupidly missing some obvious flaw? -- With respect, Alex Besogonov (cyberax(a)staffdirector.net)

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