smallufo wrote:
> I can now pinpoint the error ,
> It's because I declare the PersistenceContextType
> to PersistenceContextType.EXTENDED !!!
> I don't know why resin cannot initialize EXTENDED PersistenceContext
Because extended is only allowed when it's integrated with a stateful
session bean and we haven't finished that part of EJB yet.
(I've never been certain that extended is a good idea. With connection
pooling, the normal transaction should be equivalent.)
-- Scott
>
> Maybe caucho should look into the PersistenceContextGenerator.java ,
> create() method
>
> try {
> if (PersistenceContextType.EXTENDED.equals(_type)) {
> _manager = create(EntityManager.class,
> new AnnotationLiteral<JpaPersistenceContext>() {
> public String value() { return _unitName; }
> public boolean extended() { return true; }
> });
> }
>
>
> 2010/3/22 smallufo <[email protected] <mailto:[email protected]>>
>
> After a whole day work (but in vain) , I modified my code :
>
> I take off all hibernate-related settings/libraries from
> persistence.xml and maven dependencies , I just want to first use
> resin's Amber to test whether CanDI works...
>
> This is database settings in resin-web.xml :
>
> <database jndi-name="jdbc/mining">
> <driver type="com.mysql.jdbc.Driver">
>
>
> <url>jdbc:mysql://db/mining?useUnicode=true&characterEncoding=UTF8</url>
> <user>adm</user>
> <password>pwd</password>
> </driver>
> <max-connections>100</max-connections>
> </database>
>
>
> This is persistence.xml :
>
> <persistence xmlns="http://java.sun.com/xml/ns/persistence";
> version="1.0">
> <persistence-unit name="mining" transaction-type="RESOURCE_LOCAL">
> <non-jta-data-source>jdbc/mining</non-jta-data-source>
> <class>foo.Person</class>
> </properties>
> </persistence-unit>
> </persistence>
>
> When resin inits , I can see Amber successfully get the connection
> , and build the connection pool (ManagedPoolItem) .
>
> But I still cannot get PersonDao's implementation , it seems resin
> cannot successfully create the PersistenceContext , here is the
> FINER log dump :
>
>
>
> WebApp[http://test.smallufo.com/testapp-1] map (uri:/hello -> hello)
> Dispatch '/hello' to
> AccessLogFilterChain[http://test.smallufo.com/testapp-1,
> next=WebAppFilterChain[http://test.smallufo.com/testapp-1,
> next=ServletFilterChain[hello]]]
> com.caucho.config.ConfigException: foo.HelloServlet.personDao:
> foo.PersonDaoImpl.entityManager java.lang.NullPointerException
> at
> com.caucho.config.ConfigException.create(ConfigException.java:99)
> at
> com.caucho.config.ConfigException.create(ConfigException.java:125)
> at
>
> com.caucho.config.inject.InjectionTargetImpl$FieldInjectProgram.inject(InjectionTargetImpl.java:811)
> at
>
> com.caucho.config.inject.InjectionTargetImpl.inject(InjectionTargetImpl.java:266)
> at
>
> com.caucho.server.dispatch.ServletConfigImpl.createServletImpl(ServletConfigImpl.java:1260)
> at
>
> com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletConfigImpl.java:1142)
> at
>
> com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:98)
> at
>
> com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:183)
> at
>
> com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:103)
> at
>
> com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:286)
> at
> com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:775)
> at
>
> com.caucho.server.connection.TcpConnection.dispatchRequest(TcpConnection.java:600)
> at
>
> com.caucho.server.connection.TcpConnection.handleRequestsImpl(TcpConnection.java:566)
> at
>
> com.caucho.server.connection.TcpConnection.handleRequests(TcpConnection.java:519)
> at
>
> com.caucho.server.connection.TcpConnection$AcceptTask.doTask(TcpConnection.java:1100)
> at
>
> com.caucho.server.connection.TcpConnection$ConnectionReadTask.runThread(TcpConnection.java:1037)
> at
>
> com.caucho.server.connection.TcpConnection$AcceptTask.run(TcpConnection.java:1068)
> at
> com.caucho.util.ThreadPool$PoolThread.runTasks(ThreadPool.java:901)
> at
> com.caucho.util.ThreadPool$PoolThread.run(ThreadPool.java:866)
> Caused by: com.caucho.config.ConfigException:
> foo.PersonDaoImpl.entityManager java.lang.NullPointerException
> at
> com.caucho.config.ConfigException.create(ConfigException.java:102)
> at
>
> com.caucho.config.j2ee.PersistenceContextGenerator.create(PersistenceContextGenerator.java:121)
> at
>
> com.caucho.config.program.FieldGeneratorProgram.inject(FieldGeneratorProgram.java:84)
> at
>
> com.caucho.config.inject.InjectionTargetImpl$FieldHandlerProgram.inject(InjectionTargetImpl.java:860)
> at
>
> com.caucho.config.inject.InjectionTargetImpl.inject(InjectionTargetImpl.java:266)
> at
> com.caucho.config.inject.ManagedBeanImpl.create(ManagedBeanImpl.java:149)
> at
>
> com.caucho.config.inject.InjectManager.getInstanceRec(InjectManager.java:1347)
> at
>
> com.caucho.config.inject.InjectManager.getReference(InjectManager.java:1311)
> at
>
> com.caucho.config.inject.InjectManager.getInjectableReference(InjectManager.java:1509)
> at
>
> com.caucho.config.inject.InjectionTargetImpl$FieldInjectProgram.inject(InjectionTargetImpl.java:807)
> ... 16 more
> Caused by: java.lang.NullPointerException
> at
>
> com.caucho.config.inject.InjectManager.getInstanceRec(InjectManager.java:1337)
> at
>
> com.caucho.config.inject.InjectManager.getReference(InjectManager.java:1311)
> at
> com.caucho.config.j2ee.WebBeanGenerator.create(WebBeanGenerator.java:66)
> at
>
> com.caucho.config.j2ee.PersistenceContextGenerator.create(PersistenceContextGenerator.java:108)
> ... 24 more
> Http[5] HTTP/1.1 500 Internal Server Error
>
>
> I've stuck with this problem for days , but cannot find an answer ...
> I'm very appreciated if somebody helps me... thanks.
>
> I am using Resin (non-Pro) 4.0.5
>
>
> ------------------------------------------------------------------------
>
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>
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