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From Andrus Adamchik <and...@objectstyle.org>
Subject Re: exception in 1.2B1
Date Tue, 11 Apr 2006 06:45:49 GMT
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.interceptObjectCo 
> nversion(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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