December 2008 - jboss-dev-forums - Jboss List Archives

[Design of JCA on JBoss] - Re: connection management on tx timeout

by adrian＠jboss.org

"jhalliday" wrote : A couple of questions related to JBAS-5080, i.e. how connections behave if used either side of a asynchronous transaction timeout. | | Am I right that the expected behaviour of a connection handle obtained in a transaction but subsequently used after that transaction has been rolled back on another thread, is that it should behave as if closed? The JIRA is not too clear on what the actual fix was. | It will throw a RollbackException (wrapped in an SQLException) if you try to use the connection or one of its child objects (e.g. a statement) after the transaction is aborted. anonymous wrote : | Now the more difficult one: what's the expected JCA behaviour when a Thread that has a transaction context representing an aborted transaction, asks for a new connection? This happens if a transaction timeouts and is rolled back in the background, then the application logic tries to obtain a new connection. The new connection should be part of the ongoing global tx, but that tx is dead. Hopefully the getConnection call will throw an exception if the tx state is other than active? | Correct. The pool does a check early to avoid unnecessary allocation of a connection, but the real definitive test is when it tries to do the Transaction.enlistResource() View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196547#4196547 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196547

17 years, 3 months

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[JBoss Portal Documentation] - IDE for developing jboss portlet

by Mutharasu

Hi I want to create my own portlet. What will be the IDE for developing new portlet..... Thanks Mutharasu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196540#4196540 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196540

17 years, 3 months

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[Design of AOP on JBoss (Aspects/JBoss)] - Re: Reimplementing ClassPools for AS

by alesj

"kabir.khan(a)jboss.com" wrote : | Does a module represent a jar, thus meaning import everything from that jar? | I wouldn't call it 'import everything from that bundle'. It's more like a plain bundle dependency, where you trust that bundle to have the packages/classes you need. e.g. you know you're using Hibernate, so instead of doing every Hibernate import, you just say I need Hibernate module, as you know that the Hibernate stuff you use it's gonna be there "kabir.khan(a)jboss.com" wrote : And is package more fine-grained, meaning only import these packages from that jar? | Yup, exactly. It's when you need more fine-grained dependencies. "kabir.khan(a)jboss.com" wrote : | Whatever the answer, I suppose the Module/Package difference would also apply to the capabilities? | Module capabilities are filtered. e.g. VFSDeploymentClassLoaderPolicyModule | // We have a module capability | Object version = getVersion(); | Capability capability = factory.createModule(getName(), version); | capabilities.add(capability); | | // Do we determine package capabilities | ClassFilter included = getIncluded(); | ClassFilter excluded = getExcluded(); | ClassFilter excludedExport = getExcludedExport(); | ExportAll exportAll = getExportAll(); | if (exportAll != null) | { | Set<String> exportedPackages = PackageVisitor.determineAllPackages(roots, excludedRoots, exportAll, included, excluded, excludedExport); | for (String packageName : exportedPackages) | { | capability = factory.createPackage(packageName, version); | capabilities.add(capability); | } | } | | return capabilities; | Package capabilities would normally come from jboss-classloading.xml, an explicit definition -> capabilities/package/name+version ... "kabir.khan(a)jboss.com" wrote : | Also, what is UsesPackageRequirement? | It's when some export depends on some other bundle/api. | A comma-separated list of package names that are used by the | exported package. Note that the use of a comma in the value requires it | to be enclosed in double quotes. If this exported package is chosen as an | export, then the resolver must ensure that importers of this package wire | to the same versions of the package in this list. | | ... | | Classes can depend on classes in other packages. For example, when they | extend classes from another package, or these other classes appear in | method signatures. It can therefore be said that a package uses other packages. | These inter-package dependencies are modeled with the uses directive | on the Export-Package header. | For example, org.osgi.service.http depends on the package javax.servlet | because it is used in the API. The export definition of the | org.osgi.service.http must therefore contain the uses directive with the | javax.servlet package as its value. | So you need to import that, in order to resolve properly, as 'uses' enforces a transitive dependency on exact version. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196509#4196509 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196509

17 years, 3 months

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[Design of JBoss jBPM] - Re: Fluent interface on Commands

by camunda

Okay, committed. Thomas, maybe you could double check that I haven't missed anything by checking compatibility again? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196500#4196500 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196500

17 years, 3 months

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[Design of JBoss jBPM] - Re: Fluent interface on Commands

by tom.baeyens＠jboss.com

ok for me. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196480#4196480 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196480

17 years, 3 months

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[Design of JBoss jBPM] - Re: Fluent interface on Commands

by camunda

Sure, I will take care of the Commands (since I caused it ;-)). Since the fluent interface is really a cool thing I would add to the "setXxx()" an "xxx()" method with returns the Command itself... This is a compatible change and I hope it is OK for anybody... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196472#4196472 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196472

17 years, 3 months

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[Design of JBoss jBPM] - Re: Fluent interface on Commands

by thomas.diesler＠jboss.com

Alejandro, to change HibernateHelper in a compatible way is probably for you. To make a change in a compatible way, essentially means that you can only add stuff. Incompatible change in behaviour is almost impossible to detect unless yo have especially designed compatibility tests, which jbpm3 does not have. Hence special care is needed when it comes to behavioural change. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196463#4196463 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196463

17 years, 3 months

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[Design of JBoss jBPM] - Re: Fluent interface on Commands

by thomas.diesler＠jboss.com

It is funny that this thread pop up right now, because over the weekend I investigated whether possible incompatibilities leaked into the jBPM3 code base. The extend of these incompatibilities can be seen running this command in target/classes for both jbpm-3.3.0 and jbpm-3.3.1 | find . -name "*.class" | sort | grep class | sed "s/.class//" | xargs javap -classpath . -protected | The result I put in https://svn.jboss.org/repos/jbpm/jbpm3/trunk/modules/core/src/main/etc/ Obvious incompatibilities are in | BatchSignalCommand | ChangeProcessInstanceVersionCommand | DeleteProcessdefinitionCommand | HibernateHelper | Customer code that accesses API that has changed in this incompatible way would break. Bernd, is it ok for you to roll back these changes until code freeze 20-Dec? If not, please tell me so we can do it. This is a blocking issue for the release. https://jira.jboss.org/jira/browse/JBPM-1919 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196461#4196461 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196461

17 years, 3 months

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[Design of JBossXB] - Re: Setting the default XmlJavaTypeAdapter for a class

by alex.loubyansky＠jboss.com

I can tell JBossXB-1.0.0.SP1 which is included into the JBoss-4.2.2.GA release does not support that (even the latest XB doesn't but it does support a similar JBoss-specific annotation). But JBossWS, I think, can use JAXB reference implementation instead. Try asking on the WS forum. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196422#4196422 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196422

17 years, 3 months

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[Design of JBoss ESB] - org.drools.RuntimeDroolsException: unable to determine Value

by jarkko＠jab.fi

Just found this on the server log. Anyone seen this before? org.drools.RuntimeDroolsException: unable to determine ValueType for Class [class org.jboss.internal.soa.esb.message.format.xml.MessageImpl] at org.drools.base.ValueType.determineValueType(ValueType.java:222) at org.drools.base.ClassObjectType.(ClassObjectType.java:56) at org.drools.reteoo.Rete$ClassObjectTypeConf.(Rete.java:442) at org.drools.reteoo.Rete.assertObject(Rete.java:152) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:900) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:883) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:684) at org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:160) at org.jboss.internal.soa.esb.services.rules.DroolsRuleService.executeStatelessRules(DroolsRuleService.java:584) at org.jboss.internal.soa.esb.services.rules.DroolsRuleService.executeStatelessRules(DroolsRuleService.java:126) at org.jboss.internal.soa.esb.services.rules.RuleServiceCallHelper.executeRulesService(RuleServiceCallHelper.java:126) at org.jboss.internal.soa.esb.services.routing.cbr.JBossRulesRouter.route(JBossRulesRouter.java:123) at org.jboss.soa.esb.actions.ContentBasedWiretap.executeRules(ContentBasedWiretap.java:168) at org.jboss.soa.esb.actions.ContentBasedWiretap.process(ContentBasedWiretap.java:140) at org.jboss.soa.esb.actions.ContentBasedRouter.process(ContentBasedRouter.java:58) at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.process(ActionProcessingPipeline.java:316) at org.jboss.soa.esb.listeners.message.MessageAwareListener$TransactionalRunner.run(MessageAwareListener.java:530) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:896) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:735) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196403#4196403 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4196403

17 years, 3 months

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jboss-dev-forums December 2008