There are a number of ways...
Java dialect [requires LineItem, Parameter and NameValue to be asserted into
working memory]
rule "a - requires object model change for parent property"
when
$l : LineItem( )
$p : Parameter ( parent == $l )
$n : NameValue( parent == $p )
then
...
end
rule "b"
when
$n : NameValue( )
$p : Parameter ( nameValues contains $n )
$l : LineItem( parameters contains $p )
then
...
end
MVEL dialect
rule "c"
dialect mvel
when
$n :
my-mvel-syntax-lets-me-down-but-I-know-you-can-traverse-object-graphs-using-
it
then
...
end
_____
From: rules-users-bounces(a)lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Bhattacharya,
Sougata
Sent: 03 October 2007 12:37
To: Rules Users List
Subject: [rules-users] Arrays help
Hi All,
I have a object graph like this
LineItem has array of Parameter and each Parameter has array of NameValue
and Namevalue object has name and value.
Now I have LineItem object in working memory, how to test the value of each
value of NameValue object.
LineItem-->getParameters() returns Parameter[]
Parameter->getNameValueArray() return NameValue[]
Each NameValue has name and value attribute
Any help?
Ta
Sougata
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