Examples of org.drools.rule.constraint.EvaluatorConstraint

                                             String rightValue,
                                             InternalReadAccessor extractor,
                                             LiteralRestrictionDescr restrictionDescr) {
        if (!isMvelOperator(operator)) {
            Evaluator evaluator = buildLiteralEvaluator(context, extractor, restrictionDescr, vtype);
            return new EvaluatorConstraint(field, evaluator, extractor);
        }


        String mvelExpr = normalizeMVELLiteralExpression(vtype, field, expression, leftValue, operator, rightValue, restrictionDescr);
        IndexUtil.ConstraintType constraintType = IndexUtil.ConstraintType.decode(operator);
        MVELCompilationUnit compilationUnit = buildCompilationUnit(context, pattern, mvelExpr, null);

        ClassObjectType ot = new ClassObjectType(StockTick.class, true);
        
        Pattern a = new Pattern( 0, ot, "$a" );
        Pattern b = new Pattern( 1, ot, "$b" );


        b.addConstraint( new EvaluatorConstraint( new Declaration[] { a.getDeclaration() },
                                                  evals.getEvaluator( ValueType.OBJECT_TYPE,
                                                                      AfterEvaluatorDefinition.AFTER,
                                                                      "-2,2"),
                                                  new SelfReferenceClassFieldReader( StockTick.class, "this" ) ) );


        Pattern c = new Pattern( 2, ot, "$c" );
        c.addConstraint( new EvaluatorConstraint( new Declaration[] { a.getDeclaration() },
                                                  evals.getEvaluator( ValueType.OBJECT_TYPE,
                                                                      AfterEvaluatorDefinition.AFTER,
                                                                      "-3,4"),
                                                  new SelfReferenceClassFieldReader( StockTick.class, "this" ) ) );


        Pattern d = new Pattern( 3, ot, "$d" );
        d.addConstraint( new EvaluatorConstraint( new Declaration[] { b.getDeclaration() },
                                                  evals.getEvaluator( ValueType.OBJECT_TYPE,
                                                                      AfterEvaluatorDefinition.AFTER,
                                                                      "1,2"),
                                                  new SelfReferenceClassFieldReader( StockTick.class, "this" ) ) );


        d.addConstraint( new EvaluatorConstraint( new Declaration[] { c.getDeclaration() },
                                                  evals.getEvaluator( ValueType.OBJECT_TYPE,
                                                                      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")));

Examples of org.drools.rule.constraint.EvaluatorConstraint

Related Classes of org.drools.rule.constraint.EvaluatorConstraint