Package org.drools.spi

Examples of org.drools.spi.Restriction

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                continue;
            }

            String operator = relDescr.getOperator().trim();

            Restriction restriction = null;
            // is it a literal? Does not include enums
            if ( isRightLiteral ) {
                restriction = buildLiteralRestriction( context,
                                                       extractor,
                                                       new LiteralRestrictionDescr( operator,
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                                                        "Unable to create Field Extractor for '" + fieldName + "' of '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
                return;
            }
        }

        Restriction restriction = createRestriction( context,
                                                     pattern,
                                                     fieldConstraintDescr,
                                                     fieldConstraintDescr.getRestriction(),
                                                     extractor );

        if ( restriction == null ) {
            // error was already logged during restriction creation failure
            return;
        }

        Constraint constraint = null;
        if ( restriction instanceof AbstractCompositeRestriction ) {
            constraint = new MultiRestrictionFieldConstraint( extractor,
                                                              restriction );
        } else if ( restriction instanceof LiteralRestriction ) {
            constraint = new LiteralConstraint( extractor,
                                                (LiteralRestriction) restriction );
        } else if ( restriction instanceof VariableRestriction ) {
            constraint = new VariableConstraint( extractor,
                                                 (VariableRestriction) restriction );
        } else if ( restriction instanceof ReturnValueRestriction ) {
            constraint = new ReturnValueConstraint( extractor,
                                                    (ReturnValueRestriction) restriction );
        } else {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fieldConstraintDescr,
                                                    null,
                                                    "This is a bug: Unkown restriction type '" + restriction.getClass() + "' for pattern '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
        }

        if ( container == null ) {
            pattern.addConstraint( constraint );
        } else {
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    private Restriction buildRestriction(final RuleBuildContext context,
                                         final Pattern pattern,
                                         final FieldExtractor extractor,
                                         final FieldConstraintDescr fieldConstraintDescr,
                                         final RestrictionDescr restrictionDescr) {
        Restriction restriction = null;
        if ( restrictionDescr instanceof LiteralRestrictionDescr ) {
            restriction = buildRestriction( context,
                                            extractor,
                                            fieldConstraintDescr,
                                            (LiteralRestrictionDescr) restrictionDescr );
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                                                        "Unable to create Field Extractor for '" + fieldName + "' of '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
                return;
            }
        }

        Restriction restriction = createRestriction( context,
                                                     pattern,
                                                     fieldConstraintDescr,
                                                     fieldConstraintDescr.getRestriction(),
                                                     extractor );

        if ( restriction == null ) {
            // error was already logged during restriction creation failure
            return;
        }

        Constraint constraint = null;
        if ( restriction instanceof AbstractCompositeRestriction ) {
            constraint = new MultiRestrictionFieldConstraint( extractor,
                                                              restriction );
        } else if ( restriction instanceof LiteralRestriction ) {
            constraint = new LiteralConstraint( extractor,
                                                (LiteralRestriction) restriction );
        } else if ( restriction instanceof VariableRestriction ) {
            constraint = new VariableConstraint( extractor,
                                                 (VariableRestriction) restriction );
        } else if ( restriction instanceof ReturnValueRestriction ) {
            constraint = new ReturnValueConstraint( extractor,
                                                    (ReturnValueRestriction) restriction );
        } else {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fieldConstraintDescr,
                                                    null,
                                                    "This is a bug: Unkown restriction type '" + restriction.getClass() + "' for pattern '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
        }

        if ( container == null ) {
            pattern.addConstraint( constraint );
        } else {
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    private Restriction buildRestriction(final RuleBuildContext context,
                                         final Pattern pattern,
                                         final FieldExtractor extractor,
                                         final FieldConstraintDescr fieldConstraintDescr,
                                         final RestrictionDescr restrictionDescr) {
        Restriction restriction = null;
        if ( restrictionDescr instanceof LiteralRestrictionDescr ) {
            restriction = buildRestriction( context,
                                            extractor,
                                            fieldConstraintDescr,
                                            (LiteralRestrictionDescr) restrictionDescr );
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                continue;
            }

            String operator = relDescr.getOperator().trim();

            Restriction restriction = null;
            // is it a literal? Does not include enums
            if ( isRightLiteral ) {
                restriction = buildLiteralRestriction( context,
                                                       extractor,
                                                       new LiteralRestrictionDescr( operator,
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                                                              "Unable to create Field Extractor for '" + fieldName + "' of '" + pattern.getObjectType().toString() + "' in rule '" + context.getRule().getName() + "'" ) );
                return;
            }
        }

        Restriction restriction = createRestriction( context,
                                                     pattern,
                                                     fieldConstraintDescr,
                                                     fieldConstraintDescr.getRestriction(),
                                                     extractor );

        if ( restriction == null ) {
            // error was already logged during restriction creation failure
            return;
        }

        Constraint constraint = null;
        if ( restriction instanceof AbstractCompositeRestriction ) {
            constraint = new MultiRestrictionFieldConstraint( extractor,
                                                              restriction );
        } else if ( restriction instanceof LiteralRestriction ) {
            constraint = new LiteralConstraint( extractor,
                                                (LiteralRestriction) restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (LiteralConstraint) constraint );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (LiteralRestriction) restriction );
        } else if ( restriction instanceof VariableRestriction ||  restriction instanceof UnificationRestriction ) {
            constraint = new VariableConstraint( extractor,
                                                 restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (AcceptsReadAccessor) restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (AcceptsReadAccessor) restriction );
        } else if ( restriction instanceof ReturnValueRestriction ) {
            constraint = new ReturnValueConstraint( extractor,
                                                    (ReturnValueRestriction) restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (ReturnValueConstraint) constraint );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (ReturnValueRestriction) restriction );
        } else {
            context.getErrors().add( new DescrBuildError( context.getParentDescr(),
                                                          fieldConstraintDescr,
                                                          null,
                                                          "This is a bug: Unkown restriction type '" + restriction.getClass() + "' for pattern '" + pattern.getObjectType().toString() + "' in rule '" + context.getRule().getName() + "'" ) );
        }

        if ( container == null ) {
            pattern.addConstraint( constraint );
        } else {
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    private Restriction buildRestriction(final RuleBuildContext context,
                                         final Pattern pattern,
                                         final InternalReadAccessor extractor,
                                         final FieldConstraintDescr fieldConstraintDescr,
                                         final RestrictionDescr restrictionDescr) {
        Restriction restriction = null;
        if ( restrictionDescr instanceof LiteralRestrictionDescr ) {
            restriction = buildRestriction( context,
                                            extractor,
                                            fieldConstraintDescr,
                                            (LiteralRestrictionDescr) restrictionDescr );
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                                                  right );
        if ( evaluator == null ) {
            return null;
        }
       
        Restriction restriction = new VariableRestriction( extractor,
                                                           declaration,
                                                           evaluator );

        // TODO: FIXME: Implement proper support for Unifications
//        if ( declaration.getPattern().getObjectType().equals( new ClassObjectType( DroolsQuery.class ) ) )  {
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                                                              "Unable to create Field Extractor for '" + fieldName + "' of '" + pattern.getObjectType().toString() + "' in rule '" + context.getRule().getName() + "'" ) );
                return;
            }
        }

        Restriction restriction = createRestriction( context,
                                                     pattern,
                                                     fieldConstraintDescr,
                                                     fieldConstraintDescr.getRestriction(),
                                                     extractor );

        if ( restriction == null ) {
            // error was already logged during restriction creation failure
            return;
        }

        Constraint constraint = null;
        if ( restriction instanceof AbstractCompositeRestriction ) {
            constraint = new MultiRestrictionFieldConstraint( extractor,
                                                              restriction );
        } else if ( restriction instanceof LiteralRestriction ) {
            constraint = new LiteralConstraint( extractor,
                                                (LiteralRestriction) restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  ( LiteralConstraint ) constraint );           
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (LiteralRestriction) restriction );
        } else if ( restriction instanceof VariableRestriction ) {
            constraint = new VariableConstraint( extractor,
                                                 (VariableRestriction) restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (VariableRestriction) restriction );           
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (VariableRestriction) restriction );
        } else if ( restriction instanceof ReturnValueRestriction ) {
            constraint = new ReturnValueConstraint( extractor,
                                                    (ReturnValueRestriction) restriction );
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (ReturnValueConstraint) constraint );           
            registerReadAccessor( context,
                                  pattern.getObjectType(),
                                  fieldName,
                                  (ReturnValueRestriction) restriction );
        } else {
            context.getErrors().add( new DescrBuildError( context.getParentDescr(),
                                                          fieldConstraintDescr,
                                                          null,
                                                          "This is a bug: Unkown restriction type '" + restriction.getClass() + "' for pattern '" + pattern.getObjectType().toString() + "' in rule '" + context.getRule().getName() + "'" ) );
        }

        if ( container == null ) {
            pattern.addConstraint( constraint );
        } else {
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Related Classes of org.drools.spi.Restriction

  • org.drools.reteoo.test.dsl.ReteTesterHelper
  • org.drools.rule.builder.PatternBuilder
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