�� 2003-08-09 10:56:00 �����
>Thanks for Your answer.of you ? Could you tell me ? Thanks~~
>
>here uou are stack trace:
>
>java.lang.ArrayIndexOutOfBoundsException: 0
> at
>org.apache.ojb.broker.accesslayer.CollectionPrefetcher.buildPrefetchCriteriaMultipleKeys(CollectionPrefetcher.java:184)
> at
>org.apache.ojb.broker.accesslayer.CollectionPrefetcher.buildPrefetchQuery(CollectionPrefetcher.java:112)
> at
>org.apache.ojb.broker.accesslayer.RelationshipPrefetcherImpl.buildPrefetchQueries(RelationshipPrefetcherImpl.java:196)
> at
>org.apache.ojb.broker.accesslayer.RelationshipPrefetcherImpl.prefetchRelationship(RelationshipPrefetcherImpl.java:138)
> at
>org.apache.ojb.broker.accesslayer.CollectionPrefetcher.prefetchRelationship(CollectionPrefetcher.java:261)
> at
>org.apache.ojb.broker.accesslayer.RsIterator.prefetchRelationships(RsIterator.java:348)
> at org.apache.ojb.broker.accesslayer.RsIterator.<init>(RsIterator.java:201)
> at
>org.apache.ojb.broker.core.RsIteratorFactoryImpl.createRsIterator(RsIteratorFactoryImpl.java:95)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(PersistenceBrokerImpl.java:2375)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getIteratorFromQuery(PersistenceBrokerImpl.java:1716)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1347)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1519)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1555)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1544)
> at
>org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(DelegatingPersistenceBroker.java:317)
> at
>org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(DelegatingPersistenceBroker.java:317)
> at mesa.TestPrefetched.<init>(TestPrefetched.java:69)
> at mesa.TestPrefetched.main(TestPrefetched.java:93)
>rethrown as org.apache.ojb.broker.PersistenceBrokerException: 0
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1526)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1555)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1544)
> at
>org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(DelegatingPersistenceBroker.java:317)
> at
>org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(DelegatingPersistenceBroker.java:317)
> at mesa.TestPrefetched.<init>(TestPrefetched.java:69)
> at mesa.TestPrefetched.main(TestPrefetched.java:93)
>Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
> at
>org.apache.ojb.broker.accesslayer.CollectionPrefetcher.buildPrefetchCriteriaMultipleKeys(CollectionPrefetcher.java:184)
> at
>org.apache.ojb.broker.accesslayer.CollectionPrefetcher.buildPrefetchQuery(CollectionPrefetcher.java:112)
> at
>org.apache.ojb.broker.accesslayer.RelationshipPrefetcherImpl.buildPrefetchQueries(RelationshipPrefetcherImpl.java:196)
> at
>org.apache.ojb.broker.accesslayer.RelationshipPrefetcherImpl.prefetchRelationship(RelationshipPrefetcherImpl.java:138)
> at
>org.apache.ojb.broker.accesslayer.CollectionPrefetcher.prefetchRelationship(CollectionPrefetcher.java:261)
> at
>org.apache.ojb.broker.accesslayer.RsIterator.prefetchRelationships(RsIterator.java:348)
> at org.apache.ojb.broker.accesslayer.RsIterator.<init>(RsIterator.java:201)
> at
>org.apache.ojb.broker.core.RsIteratorFactoryImpl.createRsIterator(RsIteratorFactoryImpl.java:95)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(PersistenceBrokerImpl.java:2375)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getIteratorFromQuery(PersistenceBrokerImpl.java:1716)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1347)
> at
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(PersistenceBrokerImpl.java:1519)
> ... 6 more
>
>Best regards
>
>Tadeus Garsva
>
>
>hi tadeus,
>
>what kind of exception , please !
>
>jakob
>
>Tadeus Garsva wrote:
>
> > Hi,
> >
> > Could I use PrefetchedRelationship for M:N nondecomposed collection?
> > (query.addPrefetchedRelationship("a"), where "a" is a nondecomposed M:N
> > collection).
> > I tried, but I got a exception in CollectionPrefetcher.
> >
> > Thanks in advance.
> >
> > Best regards
> >
> > Tadeus Garsva
> >
> >
> >
> >
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> >
>
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mqg
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