Hello,
I am working on an editor based on GEF. I want to save and load the complete model from a database using hibernate.
I put the following libraries to the classpath of the plugin:


antlr-2.7.6.jar
commons-collections-2.1.1.jar
dom4j-1.6.1.jar
hibernate3.jar
javassist.jar
jta.jar
log4j-1.2.13.jar
mysql-connector-java-5.1.11-bin.jar
jb3-persistence.jar
asm-attrs.jar
asm.jar
c3p0-0.9.0.jar
cglib-2.1.3.jar
commons-logging-1.0.4.jar
dom4j-1.6.1.jar
hibernate-annotations.jar
hsqldb.jar
jboss-archive-browsing.jar
jta.jar

Now I tried to test some simple code but I always get an IllegalArgumentException:

Caused by: org.hibernate.hql.ast.QuerySyntaxException: DiagramElement is not mapped [delete from DiagramElement]
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.deleteStatement(HqlSqlBaseWalker.java:417)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:245)
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.<init>(HQLQueryPlan.java:77)
at org.hibernate.engine.query.HQLQueryPlan.<init>(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)
... 44 more



I do not know how to solve the problem. It seems that something of the plugin-path is wrong because if I add a Class with a main and run its main with the same code as Java-Application everything works fine..

I would really appreciate any help!
Thanks in advance & best regards
Alex

Hello,
I solved the problem, but the solution isn't nice at all.
Changing the Query
from DiagramElement
to
from my.example.package.DiagramElement
is the solution.

Now the question is how to get the classes withot the package-path in the queries?

All ideas welcome :D

Thanky in advance & best regards
Alex