[rules-users] Re: No OR syntax

Ronald R. DiFrango ron.difrango at gmail.com
Sat Jul 7 11:38:20 EDT 2007


OK, here is the problem:

I currently have this:

rtvHeader : RtvHeader( status != StatusConstants.MATCHED | !=
StatusConstants.APPROVAL )

but if I switch it to use a quoted string value like the following:

rtvHeader : RtvHeader( status == "Matched" | == "Approval" )

It works...Is this a bug?

On 7/7/07, Ronald R. DiFrango <ron.difrango at gmail.com> wrote:
>
> OK, this does not looked correct syntax or that it is supported.  Here is
> the exception I get:
>
> Exception in thread "main" java.lang.ExceptionInInitializerError
>     at com.circuitcity.rtvcrms.test.MainBasedTester.testRules (
> MainBasedTester.java:31)
>     at com.circuitcity.rtvcrms.test.MainBasedTester.main(
> MainBasedTester.java:23)
> Caused by: java.lang.RuntimeException: Failure loading the Rules
>     at com.circuitcity.rtvcrms.rules.RtvDecisionEngine .<clinit>(
> RtvDecisionEngine.java:48)
>     ... 2 more
> Caused by: org.drools.rule.InvalidRulePackage: [22,59]: unknown:22:59
> Unexpected token '|'[22,89]: unknown:22:89 mismatched token:
> [@162,707:707=')',<13>,22:89]; expecting type LEFT_PAREN[33,59]:
> unknown:33:59 Unexpected token '|'[33,89]: unknown:33:89 mismatched token:
> [@263,1112:1112=')',<13>,33:89]; expecting type LEFT_PAREN[44,59]:
> unknown:44:59 Unexpected token '|'[44,89]: unknown:44:89 mismatched token:
> [@364,1510:1510=')',<13>,44:89]; expecting type LEFT_PAREN[55,59]:
> unknown:55:59 Unexpected token '|'[55,89]: unknown:55:89 mismatched token:
> [@465,1924:1924=')',<13>,55:89]; expecting type LEFT_PAREN
>     at org.drools.rule.Package.checkValidity(Package.java:409)
>     at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java
> :262)
>     at com.circuitcity.rtvcrms.rules.RtvDecisionEngine.<clinit>(
> RtvDecisionEngine.java:44)
>     ... 2 more
>
> And here is my rules:
>
> #created on: Jul 7, 2007
> package com.circuitcity.rtvcrms.rules
>
> #list any import classes here.
> import java.math.BigDecimal;
> import java.math.BigInteger;
>
> import com.circuitcity.rtvcrms.bw.Constants;
> import com.circuitcity.rtvcrms.bw.DocumentTypes;
> import com.circuitcity.rtvcrms.bw.StatusConstants;
>
> import com.circuitcity.rtvcrms.EffectivePrice ;
> import com.circuitcity.rtvcrms.RtvHeader;
>
>
> #declare any global variables here
>
> rule "Line Set Open #1"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.OPEN)
>         rtvHeader : RtvHeader( status == StatusConstants.MATCHED | ==
> StatusConstants.APPROVAL )
>     then
>         System.out.println("Line Set Open #1");
>         rtvHeader.setStatus (StatusConstants.PARTIALLY_MATCHED);
>         update(rtvHeader);
> end
>
> rule "Line Set Open #2"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.OPEN)
>         rtvHeader : RtvHeader( status != StatusConstants.MATCHED | !=
> StatusConstants.APPROVAL )
>     then
>         System.out.println("Line Set Open #2");
>         rtvHeader.setStatus (StatusConstants.OPEN);
>         update(rtvHeader);
> end
>
> rule "Line Set Matched #1"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.MATCHED)
>         rtvHeader : RtvHeader( status != StatusConstants.MATCHED | !=
> StatusConstants.APPROVAL )
>     then
>         System.out.println("Line Set Matched #1");
>         rtvHeader.setStatus (StatusConstants.PARTIALLY_MATCHED);
>         update(rtvHeader);
> end
>
> rule "Line Set Matched #2"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.MATCHED)
>         rtvHeader : RtvHeader( status == StatusConstants.MATCHED | ==
> StatusConstants.APPROVAL )
>     then
>         System.out.println("Line Set Matched #2");
>         rtvHeader.setStatus (StatusConstants.MATCHED);
>         update(rtvHeader);
> end
>
> rule "Line Set Approval #1"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.APPROVAL)
>         rtvHeader : RtvHeader( status == StatusConstants.MATCHED )
>     then
>         System.out.println("Line Set Approval #1");
>         rtvHeader.setStatus(StatusConstants.APPROVAL );
>         update(rtvHeader);
> end
>
> rule "Line Set Approval #2"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.APPROVAL)
>         rtvHeader : RtvHeader( status == StatusConstants.OPEN )
>     then
>         System.out.println("Line Set Approval #2");
>         rtvHeader.setStatus(StatusConstants.PARTIALLY_MATCHED );
>         update(rtvHeader);
> end
>
> rule "Line Set Approval #3"
>     salience -10
>     when
>         rtvDetailLine : DetailLine(rtvNumber != null, rtvNumber ==
> cmRtvNumber, lineNumber != null, status == StatusConstants.APPROVAL)
>         rtvHeader : RtvHeader( status != StatusConstants.OPEN )
>     then
>         System.out.println("Line Set Approval #3");
>         rtvHeader.setStatus(StatusConstants.PARTIALLY_MATCHED );
>         update(rtvHeader);
> end
>
>
> As another note, the JBoss Rules IDE is NOT reporting any errors with the
> syntax.
>
> On 7/7/07, Ronald R. DiFrango <ron.difrango at gmail.com> wrote:
> >
> > Answered my own question:
> >
> > MyObject (status == StatusConstants.MATCHED | ==
> > StatusConstants.APPROVAL)
> >
> > On 7/7/07, Ronald R. DiFrango < ron.difrango at gmail.com> wrote:
> > >
> > > All,
> > >
> > > If I remember correctly, in the 4.x version of Drools you were adding
> > > an or type syntax where you could compare a value against multiple values.
> > > What is the new syntax for it?
> > >
> > > I am looking to do something logically like:
> > >
> > > MyObject (status in ("Open" or "Matched")
> > >
> > > Ron
> > >
> >
> >
>
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