Package org.drools.rule.constraint

Examples of org.drools.rule.constraint.MvelConstraint

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        if (isUnification) {
            expression = resolveUnificationAmbiguity(expression, declarations, leftValue, rightValue);
        }
        IndexUtil.ConstraintType constraintType = IndexUtil.ConstraintType.decode(operatorDescr.getOperator());
        MVELCompilationUnit compilationUnit = isUnification ? null : buildCompilationUnit(context, pattern, expression, null);
        return new MvelConstraint(context.getPkg().getName(), expression, declarations, compilationUnit, constraintType, requiredDeclaration, extractor, isUnification);
    }
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        MVELCompilationUnit compilationUnit = isUnification ? null : buildCompilationUnit(context, pattern, expression, null);
        return new MvelConstraint(context.getPkg().getName(), expression, declarations, compilationUnit, constraintType, requiredDeclaration, extractor, isUnification);
    }

    public Constraint buildMvelConstraint(String packageName, String expression, Declaration[] declarations, MVELCompilationUnit compilationUnit, boolean isDynamic) {
        return new MvelConstraint( packageName, expression, declarations, compilationUnit, isDynamic );
    }
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    public Constraint buildMvelConstraint(String packageName, String expression, Declaration[] declarations, MVELCompilationUnit compilationUnit, boolean isDynamic) {
        return new MvelConstraint( packageName, expression, declarations, compilationUnit, isDynamic );
    }

    public Constraint buildMvelConstraint(String packageName, String expression, Declaration[] declarations, MVELCompilationUnit compilationUnit, boolean isDynamic, PredicateDescr base ) {
        return new MvelConstraint( packageName, expression, declarations, compilationUnit, isDynamic );
    }
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    public Constraint buildMvelConstraint(String packageName, String expression, Declaration[] declarations, MVELCompilationUnit compilationUnit, boolean isDynamic, PredicateDescr base ) {
        return new MvelConstraint( packageName, expression, declarations, compilationUnit, isDynamic );
    }

    public Constraint buildMvelConstraint(String packageName, String expression, Declaration[] declarations, MVELCompilationUnit compilationUnit, IndexUtil.ConstraintType constraintType, Declaration indexingDeclaration, InternalReadAccessor extractor, boolean isUnification) {
        return new MvelConstraint( packageName, expression, declarations, compilationUnit, constraintType, indexingDeclaration, extractor, isUnification );
    }
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        }

        String mvelExpr = normalizeMVELLiteralExpression(vtype, field, expression, leftValue, operator, rightValue, restrictionDescr);
        IndexUtil.ConstraintType constraintType = IndexUtil.ConstraintType.decode(operator);
        MVELCompilationUnit compilationUnit = buildCompilationUnit(context, pattern, mvelExpr, null);
        return new MvelConstraint(context.getPkg().getName(), mvelExpr, compilationUnit, constraintType, field, extractor);
    }
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        }

        String expression = expressionBuilder.toString();
        MVELCompilationUnit compilationUnit = buildCompilationUnit(context, pattern, expression);

        MvelConstraint combinedConstraint = new MvelConstraint(packageName, expression,
                                                               declarations.toArray(new Declaration[declarations.size()]),
                                                               compilationUnit, false, null, null, false);

        pattern.addConstraint(combinedConstraint);
    }
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            boolean isDynamic = requiredOperators.length > 0 ||
                    ClassObjectType.Activation_ObjectType.isAssignableFrom( pattern.getObjectType()) ||
                    (!((ClassObjectType)pattern.getObjectType()).getClassType().isArray() &&
                    !context.getPackageBuilder().getTypeDeclaration(((ClassObjectType)pattern.getObjectType()).getClassType()).isTypesafe());

            Constraint constraint = new MvelConstraint(context.getPkg().getName(), expr, mvelDeclarations, compilationUnit, isDynamic);
            pattern.addConstraint( constraint );
        }
    }
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    private static int findDualConstraint(BetaNodeFieldConstraint[] constraints, int comparisonPos) {
        if ( !(USE_RANGE_INDEX && constraints[comparisonPos] instanceof MvelConstraint) ) {
            return -1;
        }
        MvelConstraint firstConstraint = (MvelConstraint) constraints[comparisonPos];
        String leftValue = getLeftValueInExpression(firstConstraint.getExpression());
        for (int i = comparisonPos+1; i < constraints.length; i++) {
            if (constraints[i] instanceof MvelConstraint) {
                MvelConstraint dualConstraint = (MvelConstraint) constraints[i];
                if (isDual(firstConstraint, leftValue, dualConstraint)) {
                    return i;
                }
            }
        }
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                    indexes = indexList.toArray(new FieldIndex[indexList.size()]);

                } else if (constraintType.isComparison()) {
                    // look for a dual constraint to create a range index
                    if (USE_RANGE_INDEX && constraints[firstIndexableConstraint] instanceof MvelConstraint) {
                        MvelConstraint firstConstraint = (MvelConstraint) constraints[firstIndexableConstraint];
                        String leftValue = getLeftValueInExpression(firstConstraint.getExpression());
                        for (int i = firstIndexableConstraint+1; i < constraints.length; i++) {
                            if (constraints[i] instanceof MvelConstraint) {
                                MvelConstraint dualConstraint = (MvelConstraint) constraints[i];
                                if (isDual(firstConstraint, leftValue, dualConstraint)) {
                                    constraintType = ConstraintType.RANGE;
                                    if (firstConstraint.getConstraintType().isAscending()) {
                                        ascendingConstraintType = firstConstraint.getConstraintType();
                                        descendingConstraintType = dualConstraint.getConstraintType();
                                        indexes = new FieldIndex[]{ firstConstraint.getFieldIndex(), dualConstraint.getFieldIndex() };
                                    } else {
                                        ascendingConstraintType = dualConstraint.getConstraintType();
                                        descendingConstraintType = firstConstraint.getConstraintType();
                                        indexes = new FieldIndex[]{ dualConstraint.getFieldIndex(), firstConstraint.getFieldIndex() };
                                    }
                                    return;
                                }
                            }
                        }
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            if (isUnification) {
                expression = resolveUnificationAmbiguity(expression, declarations, leftValue, rightValue);
            }
            boolean isIndexable = operator.equals("==");
            MVELCompilationUnit compilationUnit = isUnification ? null : buildCompilationUnit(context, pattern, expression);
            return new MvelConstraint(context.getPkg().getName(), expression, declarations, compilationUnit, isIndexable, getIndexingDeclaration(restriction), extractor, isUnification);
        } else {
            return new VariableConstraint(extractor, restriction);
        }
    }
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Related Classes of org.drools.rule.constraint.MvelConstraint

  • org.drools.base.ClassObjectType
  • org.drools.base.DroolsQuery
  • org.drools.common.InternalFactHandle
  • org.drools.common.InternalRuleBase
  • org.drools.core.util.AbstractHashTable.FieldIndex
  • org.drools.core.util.index.IndexUtil
  • org.drools.core.util.index.IndexUtil$Factory$IndexSpec
  • org.drools.event.knowledgebase.KnowledgeBaseEventSupportTest
  • org.drools.event.rule.AgendaEventSupportTest
  • org.drools.event.RuleBaseEventSupportTest
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