Hello Ojb-Users.
I have a Cocoon + OJB installation running. For performance reasons
there is a dynamic Proxy configured with class B.
For example let's have two classes A and B:
Class A: (has no proxy)
- uid
- link -> points to uid of class B
- B (foreign key, holds the instance of B associated with link)
Class B: (has a proxy)
- uid
- data
Everything works fine without the proxy. But when proxy is turned on and
A points to an ID that has no B in the DB, it throws a NPE:
...
Caused by: org.apache.ojb.broker.PersistenceBrokerException: Error
invoking method getIndirectionHandler
at
org.apache.ojb.broker.core.proxy.AbstractIndirectionHandler.invoke(AbstractIndirectionHandler.java:363)
at $Proxy29.getIndirectionHandler(Unknown Source)
... 61 more
Caused by: java.lang.NullPointerException
at
org.apache.ojb.broker.core.proxy.AbstractIndirectionHandler.invoke(AbstractIndirectionHandler.java:347)
... 62 more
Is there a way to catch this? I can load A so it has a proxy instance of
B associated with it. ATM there is no way for me to know if the proxy
will find a real object of B. When I access this reference, it crashes..
I really would appreciate help,
Martin
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