Hi jBoss, Simone,
Ive looked at BMPPersistanceManager and AbstractInstanceCache code and
determined
that a call on remove() doesnt actually remove the entity from the
cache!!! So when you try
and create an entity with the same primary key later the cache throws the
exception that
the entity is already there. The following comment is in the
release(EnterpriseContext)
method, suggesting that calling release() is the best policy (even though
its not called
in the current BMPPersistanceManager.removeEntity() method!!!).
// Here I remove the bean; call to remove(id) is wrong
// cause will remove also the cache lock that is needed
// by the passivation, that eventually will remove it.
This is never going to work for the scenario I am trying. It has to be gone
from the cache
immediately! I added some lines to BMPPersistanceManager.removeEntity() to
do this
and it solved the problem,.. not sure what it will do to the passivation
system though.
Do we need some code to identify that a cached entity has been removed(),
but not
actually remove it, so the insert of a new entity with the same key can
proceed?
cheers
craig
At 14:36 11/01/01, Craig Day wrote:
>Before I start shouting "CRIITICAL BUG" is there anything I should check
>in relation
>to configuration of jboss that may cause the problem:
>
>The following code snippet inside the stateless session bean
>SimpleSessionBean:
>
>System.out.println("Looking up referance");
>Object ref = jndiContext.lookup("CategoryBean");
>System.out.println("Got reference");
>CategoryHome home = (CategoryHome)
> PortableRemoteObject.narrow (ref, CategoryHome.class);
>
>Category cat = home.create("xxx");
>System.out.println(cat.getCategoryID());
>cat.remove();
>home.create("xxx");
>
>produces the following error in jBoss (latest CVS)
>
>[Default] JBoss PRE-2.1 Started
>[SimpleSessionBean] Got context
>[SimpleSessionBean] Looking up referance
>[SimpleSessionBean] Got reference
>[CategoryBean] CategoryBean: in setEntityContext()
>[CategoryBean] CategoryBean: in ejbCreate()
>[CategoryBean] CategoryBean: in ejbPostCreate()
>[SimpleSessionBean] xxx
>[CategoryBean] CategoryBean: in ejbRemove()
>[CategoryBean] CategoryBean: in setEntityContext()
>[CategoryBean] CategoryBean: in ejbCreate()
>[CategoryBean] TRANSACTION ROLLBACK EXCEPTION:null; nested exception is:
> javax.ejb.EJBException
>[CategoryBean] java.lang.IllegalStateException: INSERTING AN ALREADY
>EXISTING BEAN, ID = xxx
>[CategoryBean] at
>org.jboss.ejb.plugins.AbstractInstanceCache.insert(AbstractInstanceCache.java:205)
>[CategoryBean] at
>org.jboss.ejb.plugins.BMPPersistenceManager.createEntity(BMPPersistenceManager.java:165)
>[CategoryBean] at
>org.jboss.ejb.EntityContainer.createHome(EntityContainer.java:441)
>[CategoryBean] at java.lang.reflect.Method.invoke(Native Method)
>[CategoryBean] at
>org.jboss.ejb.EntityContainer$ContainerInterceptor.invokeHome(EntityContainer.java:639)
>[CategoryBean] at
>org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invokeHome(EntitySynchronizationInterceptor.java:160)
>[CategoryBean] at
>org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:87)
>[CategoryBean] at
>org.jboss.ejb.plugins.TxInterceptorCMT.invokeNext(TxInterceptorCMT.java:135)
>[CategoryBean] at
>org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:263)
>[CategoryBean] at
>org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:86)
>[CategoryBean] at
>org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:125)
>[CategoryBean] at
>org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:106)
>[CategoryBean] at
>org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:316)
>[CategoryBean] at
>org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invokeHome(JRMPContainerInvoker.java:404)
>[CategoryBean] at
>org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java:198)
>[CategoryBean] at $Proxy4.create(Unknown Source)
>[CategoryBean] at site.SimpleSessionBean.doit(SimpleSessionBean.java:59)
>
>with the following deployment descriptor:
>
><ejb-jar>
> <enterprise-beans>
> <entity>
> <description>Models a Category</description>
> <ejb-name>CategoryBean</ejb-name>
> <home>site.CategoryHome</home>
> <remote>site.Category</remote>
> <ejb-class>site.CategoryBean</ejb-class>
> <persistence-type>Bean</persistence-type>
> <prim-key-class>java.lang.String</prim-key-class>
> <transaction-type>Container</transaction-type>
> <reentrant>true</reentrant>
> </entity>
>
> <session>
> <description>A Simple Session Bean</description>
> <ejb-name>SimpleSessionBean</ejb-name>
> <home>site.SimpleSessionHome</home>
> <remote>site.SimpleSession</remote>
> <ejb-class>site.SimpleSessionBean</ejb-class>
> <session-type>Stateless</session-type>
> <transaction-type>Container</transaction-type>
> </session>
>
> <container-transaction>
> <method>
> <ejb-name>SimpleSessionBean</ejb-name>
> <method-name>*</method-name>
> </method>
> <trans-attribute>Required</trans-attribute>
> </container-transaction>
>
> </enterprise-beans>
></ejb-jar>
>
>
>
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