[rules-users] Map<String, String> and modify() can't be together

[Wolfgang Laun]

This also works:
     Map<String,String> a = new HashMap<>();

More ways to run into an error
     Map<String,String> a;
     a = new HashMap<String,String>();
etc.

Using 6.0.0-Final
-W

On 17/05/2014, rjh <raojinghai at gmail.com> wrote:
> Hi,
>
> I got a weird problem. A Java List/Map with generics can be used together
> with modify() in the same rule. For example, a simple rule like the
> following:
>
> package com.sample
>
> import java.util.Map;
> import java.util.HashMap;
>
> declare TestFact
>     @propertyReactive
>     data : String
> end
>
> rule "init"
>     when
>         not TestFact()
>     then
>         insert (new TestFact());
> end
>
> rule "Test Rule"
>     when
>         $fact : TestFact()
>     then
>         System.out.println( "Hello" );
>         Map<String,String> a = new HashMap<String,String>();
>         modify ($fact) {setData("0")}
> end
>
> I got the following error message:
>
> java.lang.RuntimeException: Error while creating KieBase[Message [id=1,
> level=ERROR, path=rules/Sample.drl, line=18, column=0
>    text=Unable to resolve type Map<String,String>:
> Unable to find class 'Map<String,String>']]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:260)
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:400)
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:375)
> 	at com.sample.DroolsTest.main(DroolsTest.java:17)
>
> However, if I remove "<String,String>" from "Map<String,String>", or remove
> the "modify" line, the code is correct then.
>
> Thank you!
>
> Jinghai
>
>
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/Map-String-String-and-modify-can-t-be-together-tp4029591.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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