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From Andrus Adamchik <and...@objectstyle.org>
Subject [FIXED] exception in 1.2B1
Date Tue, 11 Apr 2006 12:42:33 GMT
Ok, this is fixed in CVS. As an additional benefit, now shared cache  
will cache prefetched objects for real, unlike Cayenne 1.1 that only  
cached root query objects.

Andrus


On Apr 11, 2006, at 10:45 AM, Andrus Adamchik wrote:

> Bryan, I logged it in Jira. Will investigate:
>
> http://objectstyle.org/jira/browse/CAY-499
>
> Andrus
>
>
> On Apr 11, 2006, at 4:07 AM, Bryan Lewis wrote:
>
>> I put the 1.2B1 jar on our servers over the weekend and got one  
>> little
>> surprise today... an exception when a prefetch is specified on a  
>> caching
>> query. Here's some code that reproduces it, then the stack trace.
>>
>>     public static List fetchBankruptciesForPastYear(DataContext dc)
>>     {
>>         // Omitting the expression details...
>>         SelectQuery query = new SelectQuery("BKFiler", exp);
>>
>>         query.setCachePolicy(QueryMetadata.SHARED_CACHE);
>>         String queryName = "BCI";
>>         query.setName(queryName);
>>         query.setRefreshingObjects(false);
>>
>>         // Omitting the orderings details...
>>         query.addOrderings(orderings);
>>
>>         // This line works okay for the first fetch, but causes an  
>> exception
>>         // on subsequent (non-refreshing) fetches.  Removing this  
>> line
>> avoids
>>         // the exception.
>>         query.addPrefetch("company");
>>
>>         return dc.performQuery(query);
>>     }
>>
>> java.lang.NullPointerException
>> org.objectstyle.cayenne.access.ObjectTreeResolver 
>> $TreeBuilder.addNode(ObjectTreeResolver.java:218)
>> org.objectstyle.cayenne.access.ObjectTreeResolver 
>> $TreeBuilder.startDisjointPrefetch(ObjectTreeResolver.java:178)
>> org.objectstyle.cayenne.access.ObjectTreeResolver 
>> $TreeBuilder.startUnknownPrefetch(ObjectTreeResolver.java:201)
>> org.objectstyle.cayenne.query.PrefetchTreeNode.traverse 
>> (PrefetchTreeNode.java:209)
>> org.objectstyle.cayenne.query.PrefetchTreeNode.traverse 
>> (PrefetchTreeNode.java:216)
>> org.objectstyle.cayenne.access.ObjectTreeResolver 
>> $TreeBuilder.buildTree(ObjectTreeResolver.java:136)
>> org.objectstyle.cayenne.access.ObjectTreeResolver.resolveObjectTree 
>> (ObjectTreeResolver.java:100)
>> org.objectstyle.cayenne.access.DataDomainQueryAction.interceptObjectC 
>> onversion(DataDomainQueryAction.java:372)
>> org.objectstyle.cayenne.access.DataDomainQueryAction.execute 
>> (DataDomainQueryAction.java:151)
>> org.objectstyle.cayenne.access.DataDomain.onQuery(DataDomain.java: 
>> 715)
>> org.objectstyle.cayenne.util.ObjectContextQueryAction.runQuery 
>> (ObjectContextQueryAction.java:249)
>> org.objectstyle.cayenne.access.DataContextQueryAction.execute 
>> (DataContextQueryAction.java:90)
>> org.objectstyle.cayenne.access.DataContext.onQuery 
>> (DataContext.java:1320)
>> org.objectstyle.cayenne.access.DataContext.performQuery 
>> (DataContext.java:1309)
>> model.BKFiler.fetchBankruptciesForPastYear(BKFiler.java:68)
>> model.Model.fetchBankruptciesForPastYear(Model.java:511)
>>
>>
>
>


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