In our project we use several different databases to store ProcessDefinitions,
and we are now looking for a way to load a ProcessDefinition from database A
and store it in database B. We first tried to simply pass it like this:
| // get the target jbpm context
| JbpmContext j = getTargetJbpmContext();
|
| // load process definitions
| processDefinitions =
getJbpmContext().getGraphSession().findLatestProcessDefinitions();
|
| processMap = new HashMap();
|
| // deploy process definitions
| for(Iterator iter = processDefinitions.iterator(); iter.hasNext();){
| ProcessDefinition pd = (ProcessDefinition)iter.next();
| j.deployProcessDefinition(pd);
| }
|
This does not work because hibernate throws this:
org.hibernate.HibernateException: Illegal attempt to associate a collection
with two open sessions
We also tried to serialize and deserialize the object and load the deserialized
object in the db, but due to hibernates internal way to store objects on a
database this also does not really work, because it inserts a child before a
parent what results in a db error because of the RI. This would be avoidable by
running the RI-Check only at commit, but that would affect in several
dependencies so we couldn't change that.
We also tried to clone the object using the SerializationHelper class, but due
to hibernates lazy loading this didn't clone the hole object because not
everything was loaded.
We also couldn't use the xml-description of the processDefinition and parse it
again, because if we have to keep them we have a lot of redundant data.
so is there a way to copy a processDefinition from one database to another?
thanks in advance
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