...Exception initializing proxy: [test.Artist#32]
Note: I am using Hibernate 2.1.1
Hi,
I have 2 maps, Artist (parent) and ArtistImages (child). There is a one-to-one from parent to child and from child to parent. The child map has a foreign key generator as I need a child record to share the same id as the parent when a record is created.
Now maybe my understanding is wrong here, but I was under the impression that when loading a map which has a rference to another, in this case a one-to-one reference, that any associated records in the child map referenced by the same id as the parent would be loaded!?? So what wrong with what I am trying to do in the following instance??
My parent map is:
<hibernate-mapping package="test">
<class name="Artist" table="artisttbl" proxy="Artist">
<id name="ID" column="artist_id">
<generator class="sequence">
<param name="sequence">artist_seq_id</param>
</generator>
</id>
..........
<one-to-one name="ArtistImages" constrained="true" outer-join="false" class="ArtistImages" cascade="delete"/>
</class>
</hibernate-mapping>
My child map is:
<hibernate-mapping package="test">
<class name="ArtistImages" table="artistimagestbl">
<id name="ID" column="artist_id">
<generator class="foreign">
<param name="property">Artist</param>
</generator>
</id>
................
<one-to-one name="Artist" class="Artist" constrained="true"/>
</class>
</hibernate-mapping>
My method is:
transaction = session.beginTransaction();
//Get Artist details
artist = (Artist)session.load(Artist.class, artistID);
transaction.commit();
Util.closeSession();
My calling code is:
Artist artist = Artist.getArtist(artistID);
String artist_name = artist.getArtistName();
String artist_info = artist.getArtistInfo();
Full exception chain Stack trace:
Original Exception: net.sf.hibernate.LazyInitializationException: Exception initializing proxy: [test.Artist#32]
at net.sf.hibernate.proxy.LazyInitializer.initializeWrapExceptions(LazyInitializer.java:61)
at net.sf.hibernate.proxy.LazyInitializer.getImplementation(LazyInitializer.java:161)
at net.sf.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:108)
at test.Artist$$EnhancerByCGLIB$$5548aedc.getArtistName(<generated>)
at org.apache.cocoon.www.beyarecords.xsp.artist_details_xsp.generate(org.apache.cocoon.www.beyarecords.xsp.artist_details_xsp:167)
at org.apache.cocoon.generation.ServerPagesGenerator.generate(ServerPagesGenerator.java:263)
at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581)
at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:196)
at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:525)
at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:155)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84)
at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:165)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:136)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:371)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:312)
at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:133)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84)
at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:165)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:136)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:371)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:312)
at org.apache.cocoon.Cocoon.process(Cocoon.java:656)
at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:257)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:206)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:324)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:395)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:673)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:615)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:786)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:552)
Caused by: net.sf.hibernate.HibernateException: Could not initialize proxy - the owning Session was closed
at net.sf.hibernate.proxy.LazyInitializer.initialize(LazyInitializer.java:47)
at net.sf.hibernate.proxy.LazyInitializer.initializeWrapExceptions(LazyInitializer.java:57)
... 55 more
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