[JBoss-dev] [ jboss-Bugs-630665 ] CMR within one transaction

[<no...@so...>]

Bugs item #630665, was opened at 2002-10-29 21:32
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Category: JBossCMP
Group: v3.0 Rabbit Hole
Status: Open
Resolution: None
Priority: 5
Submitted By: Leon Doud (ldoud)
Assigned to: Nobody/Anonymous (nobody)
Summary: CMR within one transaction

Initial Comment:
When two objects are created in the same transaction 
setting a relation between these objects fails.  There is 
no exception given, but the foreign key is NULL.

The test case submitted uses one session bean with 
two almost identical methods.  The only difference is 
that one method has the transaction type of "Required" 
and the other has a type of "NotSupported".  The test 
case for the required transaction fails, while the other 
test case passes.

This test only covers one-to-many bidirectional 
relationships.  It was tested against the latest CVS code 
for Branch_3_0, using Windows 2000 and JDK 1.4.0.



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>Comment By: Alexey Loubyansky (loubyansky)
Date: 2002-11-09 15:48

Message:
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Dain, sorry for confusion. The key is of type CustomerPK that 
just wraps the int id. So, it's ok according to the spec but 
zero values will be represented as null anyway.
Also, for me, the test attached doesn't work with zero values 
for Required or NotSupported either. But works for both with 
non-zero values for id, though, I tested against HEAD on 
Win2K, jdk1.3.1.

alex

alex

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Comment By: Dain Sundstrom (dsundstrom)
Date: 2002-11-09 00:20

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A primitive int is not allowed for a primary key.  The spec
requires an Object, as the primary key is returned from a
method that returns an Object.  The verifier should have
thrown an error.

Did you turn off the verifier?  If not, this is a verifier bug.

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Comment By: Alexey Loubyansky (loubyansky)
Date: 2002-11-08 23:50

Message:
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I don't understand why it works for NotSupported.
The problem is that, you are using 'int' for primary key with 
zero value.
Currently, foreign keys can't be 'NOT NULL'. On the other 
hand, 'int' can't be null, so null equivalent is 0. Thus, 
relationships are not set.

Try the following:
1. use int for pk but non-zero values;
2. use java.lang.Integer instead of int.

alex

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