[jboss-user] [JBoss Seam] - Entity not Mapped with two datasources accessing EJBs outsid
Hi, I'm new to JBoss and Seam and have encountered a problem when trying to query
Entity beans outside of my EAR.
My environment consists of JBoss-4.0.5 running Seam-1.2.1.GA and Hibernate. My EAR
deployment uses a MySQL database (which is connecting and working just fine) but also
needs to query Entity beans, which also use Hibernate, and are deployed one level up
(~/server/default/deploy) as two separate JAR archives (API and Impl). The JARs are able
to communicate with Hibernate to create and import data into their OracleXE database but
aren't accessible from my EAR.
After having done some research I am not sure if the issue is related to Seam needing an
explicit persistence-unit declaration to use for the query or whether there is an issue
with the Entities needing to be published as a JMX service using jboss-app.xml so that the
separate classloaders can communicate.
I am writing the simplest query possible which throws the following exception:
Caused by: org.hibernate.hql.ast.QuerySyntaxException: CollectionCategory is not mapped
[select categoryCollection from CollectionCategory categoryCollection where
categoryCollection.collectionCategoryId = :el1]
at
org.hibernate.hql.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:158)
at
org.hibernate.hql.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:87)
at org.hibernate.hql.ast.tree.FromClause.addFromElement(FromClause.java:70)
at org.hibernate.hql.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:265)
at
org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3056)
at
org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:2945)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:688)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:544)
at
org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229)
at
org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:228)
at
org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:160)
at
org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:111)
at org.hibernate.engine.query.HQLQueryPlan.(HQLQueryPlan.java:77)
at org.hibernate.engine.query.HQLQueryPlan.(HQLQueryPlan.java:56)
at
org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:72)
at
org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133)
at
org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112)
at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1623)
at
org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:92)
... 85 more
Is anyone able to elaborate on the mechanisms of communication between separate JBoss
deployments and the accessibility of Hibernate mappings? As well, whether Seam's
implicit usage of datasource mappings should be considered as a factor?
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