Martin

2012/1/11 Michael Anstis <michael.anstis@gmail.com>

RHS is not DRL syntax but Java or MVEL depending on your dialect.

If "id" is not public you should use it's getter. The same goes for "quantity".

when
    $item : Item(param1 != 0, param2 == 0, !(this instanceof SpecialItem))
    $gsc : SomeBusinessLogic
then
    $gsc.doSomething($item.getId() );
    for (int i = 0; i < $item.getQuantity(); i++) {
        $gsc.doSomethingElse($item.getId() );
    }
    update($gsc);
end

2012/1/11 Martin A <wmlsub@gmail.com>

Hi, Davide,

Here is how my rule looks like :

when
$item : Item(param1 != 0, param2 == 0, !(this instanceof SpecialItem))

$gsc : SomeBusinessLogic

then
$gsc.doSomething($item.id);
for (int i = 0; i < $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
end

The above snippet throws an error @ i < $item.quantity, and says 'no such identifier $item'...
I can't figure out what might be causing this.

Thanks

On Tue, Jan 10, 2012 at 10:08 PM, Davide Sottara <dsotty@gmail.com> wrote:

Did you remember to bind $item to some expression in the LHS ? Maybe you just
called that "item" without the $ :)
Davide

(the original "modify" syntax is still wrong anyway)

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