hi,
I'm new to ojb and encounter some difficulties with 1-1 associations
mapping. I've searched through the list but haven't found an answer.
Though i think the two threads linked at the bottom of the message are
related to my problem but have no reply.
I have a bidirectional 1-1 association between classes Article and Remise
and my mapping looks like :
<class-descriptor class="com.csi.jdo.bench.business.Article"
table="ARTICLE">
... (some fields)
<field-descriptor id="4" name="ojbRemiseId" column="REF_REMISE"
jdbc-type="INTEGER"/>
<reference-descriptor name="remise"
class-ref="com.csi.jdo.bench.business.Remise">
<foreignkey field-id-ref="4"/>
</reference-descriptor>
</class-descriptor>
<class-descriptor class="com.csi.jdo.bench.business.Remise" table="REMISE">
... (some fields)
<field-descriptor id="8" name="ojbArticleId" column="REF_ARTICLE"
jdbc-type="INTEGER"/>
<reference-descriptor name="article"
class-ref="com.csi.jdo.bench.business.Article">
<foreignkey field-id-ref="8"/>
</reference-descriptor>
</class-descriptor>
When i try to query the Remises i got the exception below :
[org.apache.ojb.broker.accesslayer.RsIterator] ERROR: null
java.lang.ArrayIndexOutOfBoundsException
at
org.apache.ojb.broker.metadata.ClassDescriptor.getFieldDescriptorByIndex(Unk
nown Source)
at
org.apache.ojb.broker.metadata.ObjectReferenceDescriptor.getForeignKeyFieldD
escriptors(Unknown Source)
at
org.apache.ojb.broker.metadata.ObjectReferenceDescriptor.getForeignKeyValues
(Unknown Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getReferencedObject(Unk
nown Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.retrieveReference(Unkno
wn Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.retrieveReferences(Unkn
own Source)
at
org.apache.ojb.broker.accesslayer.RsIterator.getObjectFromResultSet(Unknown
Source)
at org.apache.ojb.broker.accesslayer.RsIterator.next(Unknown Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at org.apache.ojb.jdo.JDOQuery.execute(Unknown Source)
I suspect this exception comes from a java.util.NoSuchElementException
thrown by RSIterator.next() qince the StackTrace printed to the console and
the junit one are not the same.
When i comment the reference-descriptor in the Remise descriptor, this
problem disappears ; then the referenced Article is always null, but at
least ojb doesnt complain. I guess i'm doing something wrong but cannot see
what. Any help would be welcome.
I've tried both the OJB JDO API (the one i'm planning to use) and the
PersistenceBroker API. In both case i got that exception.
Thanks for your help.
regards,
-- gd
related threads ?
http://archives.apache.org/eyebrowse/ReadMsg?listName=ojb-user@;jakarta.apach
e.org&msgId=389869
http://archives.apache.org/eyebrowse/ReadMsg?listName=ojb-user@;jakarta.apach
e.org&msgId=507762
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