Folks,
I tried the tutorial on
"http://iris.cs.byu.edu/tim/462/tutorial/tutorial.html";. This
tutorial is based on an earlier version of Jboss (I have 3.0.0)
and uses mySQL as opposed to Hypersonic.
Now, I did the tutorial with Hypersonic and it failed ...
basically, I adjusted the following:
<datasource>java:/DefaultDS</datasource>
<type-mapping>Hypersonic SQL</type-mapping>
<!--<datasource>java:/mySQLDS</datasource>-->
<!--<type-mapping>mySQL</type-mapping>-->
in jbosscmp-jdbc.xml.
I get a nullPointer exception in the client when retrieving a
CMR. What follows is the fairly obvious code (trust me unit in
setUnit() is not null, but subsequently invoking
contract.getUnit(), returns null ...):
private ContractRemote make_contract(String id, String
startDate,
UnitRemote unit)
{
try{
pl("-----------------------------------------------------------");
pl("Create contract with id = "+id+", & start = "+startDate);
ContractRemote contract=contract = contract_home.create(id,
startDate);
contract.setUnit(unit);
pl("name --> "+contract.getStartDate());
pl("id --> "+contract.getId());
pl("unit --> "+contract.getUnit().getNumber());
pl("-----------------------------------------------------------");
return contract;
} catch (Exception ex) {
pl("Caught an unexpected exception while making contract!");
ex.printStackTrace();
}
return null;
}
Any things I overlooked?
Thanks,
John-Luc
--
John-Luc Bakker Telcordia Technologies
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