Injecting with @EJB or @Inject?
vargas Nov 26, 2009 6:00 PMHi all,
I've got a Wicket WebPage which is injected an EJB to retrieve the data to display in a grid. I've tried injecting the EJB with @Inject and with @EJB and both seem to work (at least for retrieving data), but a nasty error raises when using @EJB (please find the stack trace below).
My question is, which is the difference between injecting an EJB with @EJB and with @Inject? Do you lose any EJB facilities when using @Inject? Maybe I'm missing something / doing something wrong?
Thanks in advance,
J.
--------
logged error:
[#|2009-11-26T17:37:36.770+0100|INFO|glassfishv3.0|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadID=26;_ThreadName=http-thread-pool-8080-(1);|ERROR - Objects - Error serializing object class controllers.QuoteBrowse [object=[Page class = controllers.QuoteBrowse, id = 0, version = 0]]org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException: Unable to serialize class: services.__EJB31_Generated__QuoteService__Intf____Bean__
Field hierarchy is:
0 [class=controllers.QuoteBrowse, path=0]
private services.QuoteService controllers.QuoteBrowse.quoteService [class=services.__EJB31_Generated__QuoteService__Intf____Bean__] <----- field that is not serializable
at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:346)
at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:615)
at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:538)
at org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:684)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:129)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
at org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1120)
at org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203)
at org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:840)
at org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:332)
at org.apache.wicket.Session.requestDetached(Session.java:1404)
at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1176)
at org.jboss.weld.wicket.WeldRequestCycle.detach(WeldRequestCycle.java:155)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1454)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:468)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:301)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:168)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.NotSerializableException: services.__EJB31_Generated__QuoteService__Intf____Bean__
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
... 37 more
|#]
------------
The WebPage class is controllers.QuoteBrowse and the EJB is services.QuoteService.
I've got a Wicket WebPage which is injected an EJB to retrieve the data to display in a grid. I've tried injecting the EJB with @Inject and with @EJB and both seem to work (at least for retrieving data), but a nasty error raises when using @EJB (please find the stack trace below).
My question is, which is the difference between injecting an EJB with @EJB and with @Inject? Do you lose any EJB facilities when using @Inject? Maybe I'm missing something / doing something wrong?
Thanks in advance,
J.
--------
logged error:
[#|2009-11-26T17:37:36.770+0100|INFO|glassfishv3.0|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadID=26;_ThreadName=http-thread-pool-8080-(1);|ERROR - Objects - Error serializing object class controllers.QuoteBrowse [object=[Page class = controllers.QuoteBrowse, id = 0, version = 0]]org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException: Unable to serialize class: services.__EJB31_Generated__QuoteService__Intf____Bean__
Field hierarchy is:
0 [class=controllers.QuoteBrowse, path=0]
private services.QuoteService controllers.QuoteBrowse.quoteService [class=services.__EJB31_Generated__QuoteService__Intf____Bean__] <----- field that is not serializable
at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:346)
at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:615)
at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:538)
at org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:684)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:129)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
at org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1120)
at org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203)
at org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:840)
at org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:332)
at org.apache.wicket.Session.requestDetached(Session.java:1404)
at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1176)
at org.jboss.weld.wicket.WeldRequestCycle.detach(WeldRequestCycle.java:155)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1454)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:468)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:301)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:168)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.NotSerializableException: services.__EJB31_Generated__QuoteService__Intf____Bean__
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
... 37 more
|#]
------------
The WebPage class is controllers.QuoteBrowse and the EJB is services.QuoteService.