Package org.drools.spi

Examples of org.drools.spi.Constraint$ConstraintType

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            }
            for (Constraint next : pattern.getConstraints()) {
                if (next instanceof Declaration) {
                    continue;
                }
                Constraint constraint = (Constraint) next;
                Declaration[] decl = constraint.getRequiredDeclarations();
                for (int i = 0; i < decl.length; i++) {
                    Declaration resolved = resolver.getDeclaration(null,
                            decl[i].getIdentifier());

                    if (constraint instanceof MvelConstraint && ((MvelConstraint) constraint).isUnification()) {
                        if (ClassObjectType.DroolsQuery_ObjectType.isAssignableFrom(resolved.getPattern().getObjectType())) {
                            Declaration redeclaredDeclr = new Declaration(resolved.getIdentifier(), ((MvelConstraint) constraint).getFieldExtractor(), pattern, false);
                            pattern.addDeclaration(redeclaredDeclr);
                        } else if ( resolved.getPattern() != pattern ) {
                            ((MvelConstraint) constraint).unsetUnification();
                        }
                    }

                    if (resolved != null && resolved != decl[i] && resolved.getPattern() != pattern) {
                        constraint.replaceDeclaration(decl[i],
                                resolved);
                    } else if (resolved == null) {
                        // it is probably an implicit declaration, so find the corresponding pattern
                        Pattern old = decl[i].getPattern();
                        Pattern current = resolver.findPatternByIndex(old.getIndex());
                        if (current != null && old != current) {
                            resolved = new Declaration(decl[i].getIdentifier(),
                                    decl[i].getExtractor(),
                                    current);
                            constraint.replaceDeclaration(decl[i],
                                    resolved);
                        }
                    }
                }
            }
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        if ( this.indexed >= 0 ) {
            LinkedListEntry entry = (LinkedListEntry) this.constraints.getFirst();
            final List list = new ArrayList();

            for ( int pos = 0; pos <= this.indexed; pos++ ) {
                final Constraint constraint = (Constraint) entry.getObject();
                final VariableConstraint variableConstraint = (VariableConstraint) constraint;
                final FieldIndex index = new FieldIndex( variableConstraint.getFieldExtractor(),
                                                         variableConstraint.getRequiredDeclarations()[0],
                                                         variableConstraint.getEvaluator() );
                list.add( index );
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            for ( Iterator it = pattern.getConstraints().iterator(); it.hasNext(); ) {
                Object next = it.next();
                if ( next instanceof Declaration ) {
                    continue;
                }
                Constraint constraint = (Constraint) next;
                Declaration[] decl = constraint.getRequiredDeclarations();
                for ( int i = 0; i < decl.length; i++ ) {
                    Declaration resolved = resolver.getDeclaration( decl[i].getIdentifier() );
                    if ( resolved != null && resolved != decl[i] ) {
                        constraint.replaceDeclaration( decl[i],
                                                       resolved );
                    }
                }
            }
        } else {
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        LiteralRestrictionDescr restrictionDescr = buildLiteralRestrictionDescr(context, relDescr, value2, operator, isConstant);

        if (restrictionDescr != null) {
            FieldValue field = getFieldValue(context, vtype, restrictionDescr);
            if (field != null) {
                Constraint constraint = buildLiteralConstraint(context, pattern, vtype, field, expr, value1, operator, value2, extractor, restrictionDescr);
                if (constraint != null) {
                    pattern.addConstraint(constraint);
                    return true;
                }
            }
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            boolean isDynamic = requiredOperators.length > 0 ||
                    ClassObjectType.Activation_ObjectType.isAssignableFrom( pattern.getObjectType()) ||
                    !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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        LiteralRestrictionDescr restrictionDescr = buildLiteralRestrictionDescr(context, relDescr, value2, operator, isConstant);

        if (restrictionDescr != null) {
            FieldValue field = getFieldValue(context, vtype, restrictionDescr);
            if (field != null) {
                Constraint constraint = buildLiteralConstraint(context, pattern, vtype, field, expr, value1, operator, value2, extractor, restrictionDescr);
                if (constraint != null) {
                    pattern.addConstraint(constraint);
                    return true;
                }
            }
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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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        }

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

        Constraint combinedConstraint = getConstraintBuilder( context ).buildMvelConstraint( packageName,
                                                                                             expression,
                                                                                             declarations.toArray(new Declaration[declarations.size()]),
                                                                                             compilationUnit,
                                                                                             IndexUtil.ConstraintType.UNKNOWN,
                                                                                             null, null, false );
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        LiteralRestrictionDescr restrictionDescr = buildLiteralRestrictionDescr(context, relDescr, value2, operator, isConstant);

        if (restrictionDescr != null) {
            FieldValue field = getFieldValue(context, vtype, restrictionDescr);
            if (field != null) {
                Constraint constraint = getConstraintBuilder( context ).buildLiteralConstraint(context, pattern, vtype, field, expr, value1, operator, value2, extractor, restrictionDescr);
                if (constraint != null) {
                    pattern.addConstraint(constraint);
                    return true;
                }
            }
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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 = getConstraintBuilder( context ).buildMvelConstraint( context.getPkg().getName(), expr, mvelDeclarations, compilationUnit, isDynamic );
            pattern.addConstraint( constraint );
        }
    }
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Related Classes of org.drools.spi.Constraint$ConstraintType

  • org.drools.common.DefaultBetaConstraints
  • org.drools.compiler.PackageBuilderTest
  • org.drools.eclipse.editors.rete.model.VertexPropertySource
  • org.drools.reteoo.builder.PatternBuilder
  • org.drools.rule.builder.dialect.java.JavaDialectBinaryEqualityTest
  • org.drools.rule.builder.PatternBuilder
  • org.drools.rule.LogicTransformer
  • org.drools.rule.Pattern
  • org.drools.template.parser.DefaultTemplateRuleBaseTest
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