BUG #CAY-194 closed?

From: Adrian Popa (adrian.pop..pdevel.ro)
Date: Thu Oct 21 2004 - 09:42:15 EDT

  • Next message: Andrus Adamchik: "Re: BUG #CAY-194 closed?"

    Hi,

    I have three classes "Content", "ContentType1" that extends ContentType
    and "ContentType2" that extends "ContentType".

    Also each Content has a parent which is also a Content.

    After I execute the code

                 DataContext context = DataContext.createDataContext();
                 Content c =
    (Content)context.createAndRegisterNewObject("ContentType1");
                 c.setName("parent");
                 
                 Content c1 =
    (Content)context.createAndRegisterNewObject("ContentType2");
                  c1.setName("child1");
                  c1.setParent(c);
                 Content c2 =
    (Content)context.createAndRegisterNewObject("ContentType2");
                  c2.setName("child2");
                  c2.setParent(c);
                 Content c3 =
    (Content)context.createAndRegisterNewObject("ContentType2");
                  c3.setName("child3");
                  c3.setParent(c2);
                  context.commitChanges();

    I tried to run a query like that.
                
                  context = DataContext.createDataContext();
        
                  Expression qualifier =
    ExpressionFactory.matchExp("parent", c3);
                  Content acontent = (Content)context.performQuery(new
    SelectQuery(Content.class, qualifier)).get(0);
             
    The isssue I have is that after that last statement I get a
    NullPointerException.

    Some time ago I reported CAY-194 bug and this behavior seems similar
    with the one described at that time. I added a log file and the mapping
    file as comments to this bug.

    I run with Cayenne1.1RC1. 

    -- 
Adrian Popa
Team Leader

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