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| − | =EclipseLink JPA Deployed on IBM WebSphere 7 using Eclipse WTP=
| + | [http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebSphere_Web_Tutorial Original WebSphere 7 tutorial page for EclipseLink JPA] |
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| − | <font color="red">Note: This tutorial' is under construction for the next week as of 20090115.</font>
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| − | If you want to get a small web application running quickly on WebSphere 7.0 you can use Eclipse to create the EAR and [[EclipseLink/Examples/JPA/WebSphere7_Web_Tutorial#Remote_Debugging_EclipseLink_in_WebSphere_7.0_from_Eclipse_3.4|attach to a running WebSphere instance in debug mode on port 7781]].
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| − | This basic example details how to use Eclipse to run/debug a minimum J2EE web application servlet using EclipseLink JPA as the persistence provider. The goal of this example is to detail the minimum steps required to run EclipseLink inside the [http://www.ibm.com/developerworks/downloads/ws/was/?S_TACT=105AGX28&S_CMP=DLMAIN&S_CMP=rnav IBM WebSphere Application Server 7.0] server using the Eclipse IDE. At this point no presentation/controller layer such as JSF, Spring or Struts will be used beyond a basic HttpServlet so we can concentrate on the the integration layer JPA setup.
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| − | The [http://wiki.eclipse.org/Dali DALI] project was used to generate Entities from a schema with sequences already populated.
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| − | ==Development Environment==
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| − | '''Software:''' [http://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/ganymede/R/eclipse-jee-ganymede-win32.zip Eclipse IDE for Java EE 3.4 Ganymede SR 1] (Oct 2008 +) IBM J9 JRE 1.6.0 build 2.4 20080816_22093.
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| − | ==Prerequisites==
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| − | ===<font color="green">Install Eclipse EE</font>===
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| − | *I installed a clean version of Eclipse Ganymede 3.4 EE Edition (Oct 2008)
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| − | ===<font color="green">Install a Database</font>===
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| − | ===<font color="green">Install WebSphere 7.0</font>===
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| − | I installed the commercial 7.0.0.1 version
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| − | ===Install WebSphere Eclipse 3.4 Server Plugin===
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| − | We will first see if the WebSphere 6.0 or 6.1 plugin works with WebSphere 7.0 - it fails on missing jar files that are not present in 7.0.
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| − | The WebSphere 6.1 Eclipse WTP server plugin is not shipped by default with Eclipse (WebSphere 6.0 for JEE 1.4 is).
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| − | *'''Note: The WebSphere 6.1 plugin for Eclipse WTP is currently being developed - see the following [http://bugs.eclipse.org/160220 Eclipse WTP enhancement request 160220 in progress].
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| − | *We are not blocked from using Eclipse WTP to manage the WebSphere 6.1 server, but without this plugin we will need to attach manually to port 7781 of a running WebSphere server that was started in debug mode outside of the Eclipse IDE - we will use this alternate debug approach.
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| − | ==WebSphere Configuration Changes==
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| − | ==JNDI Datasource Setup==
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| − | ===Global Scoped Datasource Setup===
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| − | ==Persistence JAR location==
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| − | ==EclipseLink JAR location==
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| − | ==JDBC JAR location==
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| − | ==Create J2EE application==
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| − | ==Persistence.xml==
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| − | ==Publish EAR==
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| − | ===Validating the WebSphere/EclipseLink configuration===
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| − | ===Without eclipselink.jar reference===
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| − | ===With eclipselink.jar reference===
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| − | ==Perform CRUD operations: JPQL insert and query==
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| − | ===Browser Output===
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| − | ==Remote Debugging EclipseLink in WebSphere 7.0 from Eclipse 3.4==
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| − | The following procedure details how to attach to a debug version of IBM WebSphere 7.0 with the Eclipse 3.4 IDE.
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| − | Note: we will not be modifying startServer.bat. The java process in that script is only for server startup - if you need to debug this part of the server.
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| − | ===Modify console setup to start server in debug mode===
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| − | *Login to the console using your admin login or a default username like ''system''
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| − | **http://mobrien-pc2.st-mdc.ca.oracle.com:9064/ibm/console/login.do
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| − | *Navigate to Servers | Server Types | WebSphere Application servers | server1
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| − | *Navigate on the right down to Additional Properties | Debugging service
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| − | *Enable JDWP by ckecking the checkbox ''Enable service at server startup"
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| − | **The default properties below will be OK unmodified
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| − | ***JVM debug port = 7781
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| − | ***JVM debug arguments = -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=7781
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| − | *Optionally you can add server packages if you have the source for WebSphere
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| − | *We will be debugging client test code and EclipseLink API in the Eclipse IDE
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| − | [[Image:Websphere7_console_debug_screen.JPG]]
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| − | ===Start the WebSphere Server===
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| − | Either run bin/startServer.bat or the following server ant test target in our suite.
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| − | <pre>
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| − | <trunk>jpa\eclipselink.jpa.test>ant server-start
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| − | </pre>
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| − | ===Attach Eclipse 3.4 to the debug port on WebSphere 7===
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| − | *Right-click your test code
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| − | *Debug as | Debug Configurations
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| − | *select Remote Java Application
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| − | *create a new config by hitting the top-left ''new launch configuration'' icon
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| − | *type a name for your config and modify only the port to read 7781
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| − | *''apply'' changes
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| − | *click debug
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| − | You should see the following stack trace ready for any breakpoints in your code to be hit.
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| − | <pre>
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| − | VirtualAttributeTestSuite [Remote Java Application]
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| − | IBM J9 VM[localhost:7781]
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| − | Thread [P=833989:O=0:CT] (Running)
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| − | Daemon Thread [Signal Dispatcher] (Running)
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| − | Daemon Thread [Framework Event Dispatcher] (Running)
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| − | Daemon Thread [Start Level Event Dispatcher] (Running)
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| − | Thread [Worker-0] (Running)
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| − | </pre>
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| − | ===Deploy and Run EAR application===
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| − | Depending on your breakpoints you will see a stacktrace hit in the Eclipse IDE similar to the following.
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| − | <pre>
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| − | VirtualAttributeTestSuite [Remote Java Application]
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| − | IBM J9 VM[localhost:7781]
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| − | Thread [P=833989:O=0:CT] (Running)
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| − | Daemon Thread [Signal Dispatcher] (Running)
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| − | ...
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| − | Daemon Thread [Thread-52] (Running)
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| − | Daemon Thread [ORB.thread.pool : 0] (Running)
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| − | Daemon Thread [ORB.thread.pool : 1] (Suspended (breakpoint at line 302 in ConcurrencyManager))
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| − | ConcurrencyManager.isAcquired() line: 302
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| − | ClientSession(AbstractSession).isInTransaction() line: 2405
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| − | ClientSession(AbstractSession).beginTransaction() line: 538
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| − | SequencingManager$Preallocation_Transaction_NoAccessor_State.getNextValue(Sequence, AbstractSession) line: 455
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| − | SequencingManager.getNextValue(AbstractSession, Class) line: 905
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| − | ClientSessionSequencing.getNextValue(Class) line: 70
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| − | ObjectBuilder.assignSequenceNumber(Object, AbstractSession) line: 277
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| − | RepeatableWriteUnitOfWork(UnitOfWorkImpl).assignSequenceNumber(Object, ClassDescriptor) line: 402
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| − | RepeatableWriteUnitOfWork(UnitOfWorkImpl).registerNotRegisteredNewObjectForPersist(Object, ClassDescriptor) line: 3952
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| − | RepeatableWriteUnitOfWork.registerNotRegisteredNewObjectForPersist(Object, ClassDescriptor) line: 359
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| − | RepeatableWriteUnitOfWork(UnitOfWorkImpl).registerNewObjectForPersist(Object, Map) line: 3899
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| − | EntityManagerImpl.persist(Object) line: 254
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| − | JPATxEmInvocation(JPAExEmInvocation).persist(Object) line: 336
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| − | JPATxEntityManager(JPAEntityManager).persist(Object) line: 123
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| − | VirtualAttributeTestSuite.testInsertVirtualAttribute() line: 63
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| − | NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]
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| − | NativeMethodAccessorImpl.invoke(Object, Object[]) line: 45
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| − | DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 37
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| − | Method.invoke(Object, Object...) line: 599
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| − | VirtualAttributeTestSuite(TestCase).runTest() line: 154
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| − | VirtualAttributeTestSuite(TestCase).runBare() line: 127
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| − | VirtualAttributeTestSuite(JUnitTestCase).runBareServer() line: 391
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| − | TestRunnerBean.runTest(String, String, Properties) line: 87
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| − | EJSRemote0SLTestRunner_ed643271.runTest(String, String, Properties) line: not available
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| − | _EJSRemote0SLTestRunner_ed643271_Tie.runTest(InputStream, ResponseHandler) line: not available
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| − | _EJSRemote0SLTestRunner_ed643271_Tie._invoke(String, InputStream, ResponseHandler) line: not available
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| − | WSExtendedServerDelegate(ServerDelegate).dispatchInvokeHandler(InterceptorManager, ServerRequestInfoImpl, String, Object, ServerRequestReader) line: 622
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| − | WSExtendedServerDelegate(ServerDelegate).dispatch(ServerRequest) line: 475
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| − | ORB(ORB).process(ServerRequest) line: 504
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| − | ORB.process(ServerRequest) line: 1571
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| − | Connection.respondTo(RequestHandler, IIOPReader) line: 2771
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| − | Connection.doWork(RequestHandler, IIOPReader) line: 2640
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| − | WorkUnitImpl.doWork() line: 63
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| − | PooledThread.run() line: 118
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| − | ThreadPool$Worker.run() line: 1527
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| − | Daemon Thread [AIO Timer Thread 1] (Running)
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| − | Daemon Thread [WebContainer : 0] (Running)
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| − | ...
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| − | Daemon Thread [RT=7:P=833989:O=0:WSTCPTransportConnection[addr=10.156.52.98,port=1553,local=9104]] (Running)
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| − | </pre>
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| − | ==References==
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| − | *See [[EclipseLink/UserGuide/Developing_JPA_Projects_%28ELUG%29|Developing JPA Projects]] in the EclipseLink User's Guide.
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| − | http://www.ibm.com/developerworks/eclipse/downloads/ganymede/
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| − | http://www.ibm.com/developerworks/eclipse/downloads/ganymede/dev.html
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| − | Originated on build 20090115 - EclipseLink 1.1 M6 - Michael O'Brien
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