[rules-users] Problem

[Edson Tirelli]

   Krishnan,

   May I ask you please to open a JIRA and attach your examples bellow? It
seems to be a bug...
   As a workaround, while we fix it, use primitive booleans and it shall
work...

    []s
    Edson

2007/5/21, Krishnan <krishiyer at gmail.com>:
>
>
> Hi All,
>
> I am using the 4.0.M2 version of jboss rules.
>
> public class Device() {
>
> private Boolean isCiscoVersion;
> private Boolean sysNamePresent;
> private Boolean isPixVersion;
>
> }
>
> When I write the rule as follows :-
>
> rule "Cisco PIX Device"
>
>     when
>         d : Device ( isCiscoVersion == null,
>                      sysNamePresent == true,
>                      isPixVersion == true )
>     then
>         System.out.println("This is a cisco pix device.");
>
> end
>
> The rule works. However, when I write the same rule as
>
> rule "Cisco PIX Device"
>
>     when
>         d : Device ( isCiscoVersion == false,
>                      sysNamePresent == true,
>                      isPixVersion == true )
>     then
>         System.out.println("This is a cisco pix device.");
>
> end
>
> It even fails to compile and add the rule into the package. Not sure what
> is going on ?.
>
> Following is the error I keep getting :-
>
> java.lang.NullPointerException
>     at org.drools.reteoo.CompositeObjectSinkAdapter$HashKey.setValue (
> CompositeObjectSinkAdapter.java:501)
>     at org.drools.reteoo.CompositeObjectSinkAdapter$HashKey.<init>(
> CompositeObjectSinkAdapter.java:441)
>     at org.drools.reteoo.CompositeObjectSinkAdapter.hashSinks(
> CompositeObjectSinkAdapter.java :158)
>     at org.drools.reteoo.CompositeObjectSinkAdapter.addObjectSink(
> CompositeObjectSinkAdapter.java:72)
>     at org.drools.reteoo.ObjectSource.addObjectSink(ObjectSource.java:104)
>     at org.drools.reteoo.ObjectTypeNode.addObjectSink (ObjectTypeNode.java
> :313)
>     at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:116)
>     at org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java
> :129)
>     at org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes (
> PatternBuilder.java:119)
>     at org.drools.reteoo.builder.PatternBuilder.attachPattern(
> PatternBuilder.java:71)
>     at org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java
> :55)
>     at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build (
> GroupElementBuilder.java:111)
>     at org.drools.reteoo.builder.GroupElementBuilder.build(
> GroupElementBuilder.java:69)
>     at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(
> ReteooRuleBuilder.java:143)
>     at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(
> ReteooRuleBuilder.java:108)
>     at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:112)
>     at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java :266)
>     at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java
> :293)
>     at com.sample.CfiTest.readRule(CfiTest.java:71)
>     at com.sample.CfiTest.main(CfiTest.java:23)
>
>
> Any ideas why this is happening ?.
>
> -Krishnan.
>
> --
> Sivaramakrishna Iyer Krishnan (Anand)
>
> Never assume the obvious is true.
> - William Safire
> _______________________________________________
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> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>


-- 
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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