CMP, BLOB and Dependant Object
Hello!
I'am using JBoss3.0 beta with Oracle8i.
I want to develop an entity bean, with CMP, which has one field of type MyField(a class with two Strings, the class implements serializable).
I can insert data in the table, but when I want to retrieve the data the following errors occur:
TransactionRolledbackException, causedBy:
java.sql.SQLException: Unable to load to deserialize result: java.io.StreamCorruptedException: InputStream does not contain a serialized object
at org.jboss.ejb.plugins.cmp.jdbc.JDBCUtil.convertByteArrayToObject(JDBCUtil.java:455)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCUtil.getBinaryResult(JDBCUtil.java:281)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCUtil.getResult(JDBCUtil.java:210)
at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCAbstractCMPFieldBridge.loadArgumentResults(JDBCAbstractCMPFieldBridge.java:299)
at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCAbstractCMPFieldBridge.loadInstanceResults(JDBCAbstractCMPFieldBridge.java:253)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.execute(JDBCLoadEntityCommand.java:138)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.execute(JDBCLoadEntityCommand.java:62)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.loadEntity(JDBCStoreManager.java:409)
at org.jboss.ejb.plugins.CMPPersistenceManager.loadEntity(CMPPersistenceManager.java:380)
at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke(EntitySynchronizationInterceptor.java:275)
at org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInstanceInterceptor.java:189)
at org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInterceptor.java:108)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:96)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:167)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:61)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:127)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:166)
at org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:475)
at org.jboss.ejb.plugins.local.BaseLocalContainerInvoker.invoke(BaseLocalContainerInvoker.java:308)
at org.jboss.ejb.plugins.local.BaseLocalContainerInvoker$EntityProxy.invoke(BaseLocalContainerInvoker.java:412)
at $Proxy15.getF(Unknown Source)
at ejb.employee.EmployeeControllerBean.getField(EmployeeControllerBean.java:87)
at java.lang.reflect.Method.invoke(Native Method)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:642)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:77)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:96)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:167)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:61)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:127)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:166)
at org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:308)
at org.jboss.ejb.Container.invoke(Container.java:630)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1555)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:364)
at java.lang.reflect.Method.invoke(Native Method)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Without this field everything works just fine.
In my ejb-jar.xml I specified that the field is CMP:
<cmp-field><field-name>f</field-name></cmp-field>
In my jbosscmp-jdbc.xml
<cmp-field>
<field-name>f</field-name>
<column-name>field_mic</column-name>
<jdbc-type>JAVA_OBJECT</jdbc-type>
<sql-type>BLOB</sql-type>
</cmp-field>
Do I have to do something else? What am I missing?
Thank's.
