Yes that’s the simple one, but I can’t send the NameValue, I will send only the LineItem

From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Anstis, Michael (M.)
Sent: Wednesday, October 03, 2007 5:36 PM
To: Rules Users List
Subject: RE: [rules-users] Arrays help

I forgot to mention, this assumes you want to maintain the relationships. If you're not interested in these but merely want to process all NameValue objects then a simple rule works fine:-

rule "don't worry about preserving relationships"

when

$n : NameValue ( )

then

....

end

Simply assert all NameValue objects.

From: Anstis, Michael (M.)
Sent: 03 October 2007 12:48
To: 'Rules Users List'
Subject: RE: [rules-users] Arrays help

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@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.

LineItemàgetParameters() returns Parameter[]

Parameter->getNameValueArray() return NameValue[]

Each NameValue has name and value attribute

Any help?

Ta

Sougata

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