Package org.drools.rule

Examples of org.drools.rule.Pattern.addConstraint()

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                                                                      AfterEvaluatorDefinition.AFTER,
                                                                      "2,3"),
                                                  new SelfReferenceClassFieldReader( StockTick.class, "this" ) ) );

        Pattern e = new Pattern( 4, ot, "$e" );
        e.addConstraint(new EvaluatorConstraint(new Declaration[]{d.getDeclaration()},
                evals.getEvaluator(ValueType.OBJECT_TYPE,
                        AfterEvaluatorDefinition.AFTER,
                        "1,10"),
                new SelfReferenceClassFieldReader(StockTick.class, "this")));
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                                                                                     null );

        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
                                                                    field );
        pattern.addConstraint( constraint );
        rule1.addPattern( pattern );

        rule1.setConsequence( new Consequence() {
            private static final long serialVersionUID = 510l;
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        final FieldValue field2 = FieldFactory.getFieldValue( "stilton" );

        final LiteralConstraint constraint2 = new LiteralConstraint( extractor,
                                                                     evaluator,
                                                                     field2 );
        pattern2.addConstraint( constraint2 );
        rule2.addPattern( pattern2 );

        rule2.setConsequence( new Consequence() {
            private static final long serialVersionUID = 510l;
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        // -----------
        final Pattern contextPattern = new Pattern( 0,
                                                    this.contextType,
                                                    "context" );

        contextPattern.addConstraint( getLiteralConstraint( contextPattern,
                                                            "state",
                                                            Context.START_UP,
                                                            this.integerEqualEvaluator ) );

        rule.addPattern( contextPattern );
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        // ---------------
        final Pattern contextPattern = new Pattern( 0,
                                                    this.contextType,
                                                    "context" );

        contextPattern.addConstraint( getLiteralConstraint( contextPattern,
                                                            "state",
                                                            Context.ASSIGN_SEATS,
                                                            this.integerEqualEvaluator ) );

        rule.addPattern( contextPattern );
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        setFieldDeclaration( seatingPattern,
                             "pid",
                             "seatingPid" );

        seatingPattern.addConstraint( getLiteralConstraint( seatingPattern,
                                                            "pathDone",
                                                            true,
                                                            this.booleanEqualEvaluator ) );

        setFieldDeclaration( seatingPattern,
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        // rightGuestHobby:hobby )
        // ---------------
        final Pattern rightGuestPattern = new Pattern( 2,
                                                       this.guestType );

        rightGuestPattern.addConstraint( getBoundVariableConstraint( rightGuestPattern,
                                                                     "name",
                                                                     seatingRightGuestNameDeclaration,
                                                                     this.objectEqualEvaluator ) );

        setFieldDeclaration( rightGuestPattern,
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        setFieldDeclaration( leftGuestPattern,
                             "name",
                             "leftGuestName" );

        leftGuestPattern.addConstraint( getBoundVariableConstraint( rightGuestPattern,
                                                                    "hobby",
                                                                    rightGuestHobbyDeclaration,
                                                                    this.objectEqualEvaluator ) );

        leftGuestPattern.addConstraint( getBoundVariableConstraint( leftGuestPattern,
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        leftGuestPattern.addConstraint( getBoundVariableConstraint( rightGuestPattern,
                                                                    "hobby",
                                                                    rightGuestHobbyDeclaration,
                                                                    this.objectEqualEvaluator ) );

        leftGuestPattern.addConstraint( getBoundVariableConstraint( leftGuestPattern,
                                                                    "sex",
                                                                    rightGuestSexDeclaration,
                                                                    this.objectNotEqualEvaluator ) );

        rule.addPattern( leftGuestPattern );
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        // not ( Path( id == seatingId, guestName == leftGuestName) )
        // --------------
        final Pattern notPathPattern = new Pattern( 5,
                                                    this.pathType );

        notPathPattern.addConstraint( getBoundVariableConstraint( notPathPattern,
                                                                  "id",
                                                                  seatingIdDeclaration,
                                                                  this.integerEqualEvaluator ) );

        notPathPattern.addConstraint( getBoundVariableConstraint( notPathPattern,
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