Thank you so much, Wolfgang. :)
I'm so sorry. I don't know why I'm kind of forgetting all of Java while
using Drools.
[Topic solved]
Tina
This is not an issue of exception handling.
If you use "declare" you'll have to initialize all collection-typed
fields properly
before you can call any methods, e.g.
Set set = new HashSet<?>()
watcher.setValueSet( set );
set.add(...)
-W
2010/8/13 Tina Vießmann <[email protected]
<mailto:[email protected]>>
Hi Edson,
I can't provide a test case. But I've figured out what the
exception are about. It's not about the code I've posted before.
It's about the exceptions that the java.util.Set.add() method
throws. I've attached the concerned code at the end.
That means for me I have to manage the exception handling. I've
tried to google the topic. The best I came up with is a mailing
list entry:
http://drools-java-rules-engine.46999.n3.nabble.com/Exception-handling-policy-td113782.html
Would that be the correct solution? If yes, how do I implement the
handler? I would be thankful for a code example.
The code that the exception references is:
declare Watcher
@role ( event )
triggeringValue : Value
numberOfContainedValues : int
valueSet : Set // Set<Value>
end
// ....
function Watcher generateWatcherEvent(Value firstValue) {
Watcher watcher = new Watcher();
watcher.setNumberOfContainedValues(1);
watcher.setTriggeringValue(firstValue);
// add value to set
Set set = watcher.getValueSet();
set.add(firstValue);
watcher.setValueSet(set);
return watcher;
}
Thanks for your help! :)
Tina
Am 13.08.2010 01:14, schrieb Edson Tirelli:
Hi Tina,
Can you provide a test case?
Edson
2010/8/12 Tina Vießmann <[email protected]
<mailto:[email protected]>>
Hi again ...
I would like to insert a new generated object into the
knowledge base.
It seems that
insert (new Watcher())
is working. But
Watcher watcher = new Watcher();
insert (watcher);
isn't working?
Why?
Thank you for any explanations. :)
Tina
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--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com <http://www.jboss.com>
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https://lists.jboss.org/mailman/listinfo/rules-users
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