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From "Jerry Carter (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1569) @Strategy triggers an InvalidStateException for fields which are declared as Java interfaces
Date Sat, 13 Mar 2010 04:31:27 GMT
@Strategy triggers an InvalidStateException for fields which are declared as Java interfaces
--------------------------------------------------------------------------------------------

                 Key: OPENJPA-1569
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1569
             Project: OpenJPA
          Issue Type: Bug
    Affects Versions: 2.0.0-beta2
         Environment: MacOS X, Spring 3.0, Maven
            Reporter: Jerry Carter


The @Strategy annotation works fine for classes but does not work if the field is a Java interface.
 Consider:

	@Persistent
	@Strategy("SimpleHandler")
	@Column(name="address_packed")
	private BaseAddress address;
	public BaseAddress getAddress() { return address; }
	public void setAddress(BaseAddress address) { this.address = address; }

This works perfectly if BaseAddress is defined as a class but results in an InvalidStateException
if it is an interface:

<openjpa-2.0.0-beta2-rexported fatal user error> org.apache.openjpa.persistence.InvalidStateException:
Encountered unmanaged object in persistent field "com.example.SimpleEntity.address" during
flush.  However, this field does not allow cascade persist. Set the cascade attribute for
this field to CascadeType.PERSIST or CascadeType.ALL (JPA annotations) or "persist" or "all"
(JPA orm.xml), or enable cascade-persist globally, or manually persist the related field value
prior to flushing. You cannot flush unmanaged objects or graphs that have persistent associations
to unmanaged objects.
FailedObject: com.example.USAddress@4e0a39de
	at org.apache.openjpa.kernel.SingleFieldManager.preFlushPC(SingleFieldManager.java:767)
	at org.apache.openjpa.kernel.SingleFieldManager.preFlush(SingleFieldManager.java:614)
	at org.apache.openjpa.kernel.SingleFieldManager.preFlush(SingleFieldManager.java:575)
	at org.apache.openjpa.kernel.SingleFieldManager.preFlush(SingleFieldManager.java:491)
	at org.apache.openjpa.kernel.StateManagerImpl.preFlush(StateManagerImpl.java:2956)
	at org.apache.openjpa.kernel.PNewState.beforeFlush(PNewState.java:40)
	at org.apache.openjpa.kernel.StateManagerImpl.beforeFlush(StateManagerImpl.java:1048)
	at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2051)
	at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2011)
	at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1782)
	at org.apache.openjpa.kernel.DelegatingBroker.flush(DelegatingBroker.java:1015)
	at org.apache.openjpa.persistence.EntityManagerImpl.flush(EntityManagerImpl.java:637)
	... etc ...

Here com.example.USAddress is a class which implements the BaseAddress interface.

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