Your assumption is correct, but how do I iterate throw the array

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Anstis,
Michael (M.)
Sent: Wednesday, October 03, 2007 6:52 PM
To: Rules Users List
Subject: RE: [rules-users] Arrays help

 

Do you mean you cannot insert NameValue facts into working memory?

 

If this is the case, then you might have to use eval or MVEL dialect.
Based upon your model below I assumed you could insert NameValues:-

 

LineItem-->getParameters() returns Parameter[]

Parameter->getNameValueArray() return NameValue[]

Each NameValue has name and value attribute

         

        
________________________________


        From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bhattacharya,
Sougata
        Sent: 03 October 2007 13:23
        To: Rules Users List
        Subject: RE: [rules-users] Arrays help

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

         

        
________________________________


        From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] 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-us
ing-it

                    then

                        ...

                end

                 

                         

                        
________________________________


                        From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] 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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