Package org.drools.rule

Examples of org.drools.rule.GroupElement

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         * If it is a group element, than a subnetwork must be created
         */
        public void build(final BuildContext context,
                          final BuildUtils utils,
                          final RuleConditionElement rce) {
            final GroupElement exists = (GroupElement) rce;

            // EXISTS must save some context info to restore it later
            final int currentPatternIndex = context.getCurrentPatternOffset();
            final LeftTupleSource tupleSource = context.getTupleSource();

            // get child
            final RuleConditionElement child = (RuleConditionElement) exists.getChildren().get( 0 );

            // get builder for child
            final ReteooComponentBuilder builder = utils.getBuilderFor( child );

            // builds the child
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        // forall can be translated into
        // not( basePattern and not( <remaining_patterns>+ ) )
        // so we just do that:

        final GroupElement and = GroupElementFactory.newAndInstance();
        and.addChild( forall.getBasePattern() );

        final GroupElement not2 = GroupElementFactory.newForallNotInstance();
        not2.setForallBaseObjectType( forall.getBasePattern().getObjectType() );
        if ( forall.getRemainingPatterns().size() == 1 ) {
            not2.addChild( (Pattern) forall.getRemainingPatterns().get( 0 ) );
            and.addChild( not2 );
        } else if ( forall.getRemainingPatterns().size() > 1 ) {
            final GroupElement and2 = GroupElementFactory.newAndInstance();
            for ( final Iterator it = forall.getRemainingPatterns().iterator(); it.hasNext(); ) {
                and2.addChild( (Pattern) it.next() );
            }
            not2.addChild( and2 );
            and.addChild( not2 );
        }

        final GroupElement not = GroupElementFactory.newNotInstance();
        not.addChild( and );

        // get builder for the CEs
        final ReteooComponentBuilder builder = utils.getBuilderFor( not );

        // builds the CEs
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        String ruleName = stream.readUTF();
        Package pkg = ruleBase.getPackage( pkgName );
        Rule rule = pkg.getRule( ruleName );

        RuleTerminalNode ruleTerminalNode = (RuleTerminalNode) leftTuple.getLeftTupleSink();
        GroupElement subRule = ruleTerminalNode.getSubRule();

        PropagationContext pc = context.propagationContexts.get( stream.readLong() );

        AgendaItem activation = new AgendaItem( activationNumber,
                                                leftTuple,
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        rule.setLoadOrder( index );       
        final AgendaItem item = new AgendaItem( 0,
                                                null,
                                                0,
                                                null,
                                                new RuleTerminalNode(0, null, rule, new GroupElement(), new BuildContext( new ReteooRuleBase("x"), null )  ) );
        return item;
    }
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        notPathPattern.addConstraint( getBoundVariableConstraint( notPathPattern,
                                                                  "guestName",
                                                                  leftGuestNameDeclaration,
                                                                  this.objectEqualEvaluator ) );
        final GroupElement notPath = GroupElementFactory.newNotInstance();
        notPath.addChild( notPathPattern );
        rule.addPattern( notPath );
        // ------------
        // not ( Chosen( id == seatingId, guestName == leftGuestName, hobby ==
        // rightGuestHobby ) )
        // ------------
        final Pattern notChosenPattern = new Pattern( 6,
                                                      this.chosenType );

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

        notChosenPattern.addConstraint( getBoundVariableConstraint( notChosenPattern,
                                                                    "guestName",
                                                                    leftGuestNameDeclaration,
                                                                    this.objectEqualEvaluator ) );

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

        final GroupElement notChosen = GroupElementFactory.newNotInstance();
        notChosen.addChild( notChosenPattern );

        rule.addPattern( notChosen );

        // ------------
        // int newSeat = rightSeat + 1;
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        notPathPattern.addConstraint( getBoundVariableConstraint( notPathPattern,
                                                                  "guestName",
                                                                  pathGuestNameDeclaration,
                                                                  this.objectEqualEvaluator ) );

        final GroupElement not = GroupElementFactory.newNotInstance();

        not.addChild( notPathPattern );

        rule.addPattern( not );

        // ------------
        // drools.assert( new Path( id, pathName, pathSeat ) );
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        DroolsStreamUtils.streamOut(new FileOutputStream(file), testGroupElement);

        InputStream         fis = getClass().getResourceAsStream(TEST_FILE);

        GroupElement    that    = (GroupElement)DroolsStreamUtils.streamIn(fis);
        assertEquals(that, testGroupElement);
    }
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     * @inheritDoc
     */
    public void build(final BuildContext context,
                      final BuildUtils utils,
                      final RuleConditionElement rce) {
        final GroupElement ge = (GroupElement) rce;

        final ReteooComponentBuilder builder = (ReteooComponentBuilder) this.geBuilders.get( ge.getType() );

        builder.build( context,
                       utils,
                       rce );
    }
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    /**
     * @inheritDoc
     */
    public boolean requiresLeftActivation(final BuildUtils utils,
                                          final RuleConditionElement rce) {
        final GroupElement ge = (GroupElement) rce;

        final ReteooComponentBuilder builder = (ReteooComponentBuilder) this.geBuilders.get( ge.getType() );

        return builder.requiresLeftActivation( utils,
                                               rce );
    }
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         */
        public void build(final BuildContext context,
                          final BuildUtils utils,
                          final RuleConditionElement rce) {

            final GroupElement ge = (GroupElement) rce;

            // iterate over each child and build it
            for ( final Iterator it = ge.getChildren().iterator(); it.hasNext(); ) {

                final RuleConditionElement child = (RuleConditionElement) it.next();

                final ReteooComponentBuilder builder = utils.getBuilderFor( child );

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Related Classes of org.drools.rule.GroupElement

  • com.envoisolutions.sxc.drools.DroolsXPathEvaluatorFactory
  • org.drools.common.DroolsObjectIOTest
  • org.drools.common.SequentialAgendaTest
  • org.drools.compiler.PackageBuilderTest
  • org.drools.decisiontable.parser.DefaultTemplateRuleBaseTest
  • org.drools.examples.manners.BaseMannersTest
  • org.drools.marshalling.impl.InputMarshaller
  • org.drools.marshalling.InputMarshaller
  • org.drools.reteoo.builder.AccumulateBuilder
  • org.drools.reteoo.builder.BuildUtilsTest
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