RE: Issue: defined Primitive types versus Objects (CMP20 plugin)

	<cmp20 destination="${build.source}" blah blah blah...>
		<fileproducer id="entity-cmp-20"
template="./template/entity-cmp-20.vm"/>
		<jboss/>
            <weblogic/>
	</cmp20>

You can make a copy of entity-cmp-20.vm in your own folder (template in
this example) and edit it to your heart's content. Now you control the
output. As far as mapping types, however, there is a source for
middlegen.javax.Sql2Java.java that you can modify and rebuild middlgen.
Say you wanted Types.NUMERIC to translate as Double objects: 

     _preferredJavaTypeForSqlType.put(Types.NUMERIC,
"java.lang.Double");

Not sure if editing that source is recommended,  however. 

-----Original Message-----
From: Russell Simpkins [mailto:[email protected]] 
Sent: Monday, December 22, 2003 8:20 AM
To: [email protected]
Subject: RE: [Middlegen-user] Issue: defined Primitive types versus
Objects (CMP20 plugin)


You can always edit the velocity template(s).

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Darren
Hartford
Sent: Monday, December 22, 2003 11:03 AM
To: [email protected]
Subject: [Middlegen-user] Issue: defined Primitive types versus Objects
(CMP20 plugin)

Hey all,
This was a kicker to find.  Have a database, it contains a Numeric field
that is NULLable.  Use CMP to connect to a J2EE application but get
NullPointer exceptions during execution.

Instead of defining the Numeric as a java.lang.Integer object in the
Entity Bean, it was defined as an 'int'. public abstract int
getMyNumberField(); public abstract void setMyNumberField(int
myNumberField);

Is there a way to quickly fix this (outside of changing the generated
source code), Then a gameplan to take care of it in the future?  I know
on the J2EE/CMP side you 99% always want Objects in the EntityBean, not
sure on JDO side though. Thanks, I'm suprised no one else has run into
this!

-D


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