Re: [rules-users] Is there a better way?
On 01/26/08 03:32, someone claiming to be Edson Tirelli wrote:
This should work:
$rli_list : RecordSet( this != $npi.relatedRLIs )
And it does, thanks very much. I could swear I tried that, but I guess not.
Foolish me.
2008/1/25, Dirk Bergstrom <dirk(a)juniper.net
<mailto:dirk@juniper.net>>:
I collect objects of type RLI that are related to instances of type
NPI, and
"attach" them to their NPIs, and (in a later agenda group) collect
subsets of
RLIs based on attributes of RLIs, NPIs, and other objects. In the
first agenda
group, I need to update() the NPI object after the new list of RLIs
is attached,
but I only want to do this when a *new* list is attached.
The only way I can find to do this requires an eval. Is there a
better way?
Here's the rule that I have now. This works:
rule "RLIs for NPI"
agenda-group "010"
lock-on-active true
salience 50
when
$npi : NPIRecord( )
$rli_list : RecordSet( eval( !
$rli_list.equals($npi.getRelatedRLIs())) ) from
collect( RLIRecord( npi_program == $npi.synopsis ) )
then
$npi.setRelatedRecords($rli_list, DataSource.RLI);
update($npi);
end
I'd like to write something like this:
...
$rli_list : RecordSet( $rli_list != $npi.relatedRLIs ) from
...
But that doesn't compile.
--
Dirk Bergstrom dirk(a)juniper.net
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