[rules-users] check list size

[sumit dhaniya]

Thanks for the example Mike just upgraded to 6.1.CR2 it's working in it.
Just need to add a BRL fragment if want to you in a Decision table.

Thanks and Regards


On Mon, Jul 14, 2014 at 4:58 PM, Michael Anstis <michael.anstis at gmail.com>
wrote:

> I had a look, but was able to use a List without problem (6.1.CR2):
>
> 1) Made a Maven-ized JAR containing the following class:
>
> package org.anstis;
>
> import java.util.List;
>
> public class MyListClass {
>
>     private List myList;
>
>     public List getMyList() {
>         return myList;
>     }
>
>     public void setMyList( List myList ) {
>         this.myList = myList;
>     }
> }
>
> 2) Uploaded JAR to the workbench's Artifact Repository
>
> 3) Added a project dependency on this artifact
>
> 4) Added an Import Suggestion for java.util.List
>
> 5) Created a new Guided Rule
>
> 6) Imported MyListClass and java.util.List (Config tab)
>
> 7) Created the following rule:
>
> package org.mortgages;
>
> import java.lang.Number;
> import java.util.List;
> import org.anstis.MyListClass;
>
> rule "r1"
>   dialect "mvel"
> when
>   MyListClass( myList.size() < 5 )
> then
> end
>
> You need to use an "Expression" to use the "size()" method call (as it is
> not a field, but a method call). Fields are "getXXX" or "setYYY" or public
> members.
>
> With kind regards,
>
> Mike
>
> On 11 July 2014 15:14, Sumit Dhaniya <sumitdhaniya at gmail.com> wrote:
>
>> I have a class which contains some lists, I want to apply rules on size of
>> list and want to use functions like first(), last() but list objects which
>> are in my class are identified as collections and only collection related
>> functions are shown.
>>
>> For eg.
>>
>> class A {
>> java.util.List bList = new ArrayList();
>> }
>>
>> now it shows bList as collection type and it doesn't shows size and
>> related
>> list function instead shows collection functions like contains etc.
>>
>> Can't I use it like both a collection as well as List?
>>
>> I tried importing java.util.List but it still don't recognize my List
>> objects as List
>>
>>
>>
>> --
>> View this message in context:
>> http://drools.46999.n3.nabble.com/check-list-size-tp4030303.html
>> Sent from the Drools: User forum mailing list archive at Nabble.com.
>> _______________________________________________
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>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>
>
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