Package org.drools.rule

Examples of org.drools.rule.GroupElement

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            Pattern prefixPattern = null;
            if ( context.getRuleDescr() instanceof QueryDescr ) {
                prefixPattern = context.getDialect().getQueryBuilder().build( context,
                                                                              (QueryDescr) context.getRuleDescr() );
            }
            final GroupElement ce = (GroupElement) builder.build( context,
                                                                  ruleDescr.getLhs(),
                                                                  prefixPattern );

            context.getRule().setLhs( ce );
        } else {
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    public RuleConditionElement build(final RuleBuildContext context,
                                    final BaseDescr descr,
                                    final Pattern prefixPattern) {
        final ConditionalElementDescr cedescr = (ConditionalElementDescr) descr;

        final GroupElement ge = this.newGroupElementFor( descr );
        context.getBuildStack().push( ge );

        if ( prefixPattern != null ) {
            ge.addChild( prefixPattern );
        }

        // iterate over child descriptors
        for ( final Iterator it = cedescr.getDescrs().iterator(); it.hasNext(); ) {
            // gets child to build
            final BaseDescr child = (BaseDescr) it.next();
            child.setResource(context.getRuleDescr().getResource());
            child.setNamespace(context.getRuleDescr().getNamespace());

            // gets corresponding builder
            final RuleConditionBuilder builder = (RuleConditionBuilder) context.getDialect().getBuilder( child.getClass() );

            if ( builder != null ) {
                final RuleConditionElement element = builder.build( context,
                                                                    child );
                // in case there is a problem with the building,
                // builder will return null. Ex: ClassNotFound for the pattern type
                if ( element != null ) {
                    ge.addChild( element );
                }
            } else {
                throw new RuntimeDroolsException( "BUG: no builder found for descriptor class " + child.getClass() );
            }
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        final List resultBetaConstraints = context.getBetaconstraints();
        final List resultAlphaConstraints = context.getAlphaConstraints();

        RuleConditionElement source = accumulate.getSource();
        if( source instanceof GroupElement ) {
            GroupElement ge = (GroupElement) source;
            if( ge.isAnd() && ge.getChildren().size() == 1 ) {
                source = (RuleConditionElement) ge.getChildren().get( 0 );
            }
        }

        // get builder for the pattern
        final ReteooComponentBuilder builder = utils.getBuilderFor( source );
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        return false;
    }

    static RuleTerminalNode buildTerminalNodeForNamedConsequence(BuildContext context, NamedConsequence namedConsequence) {
        Rule rule = context.getRule();
        GroupElement subrule = (GroupElement) context.peek();

        ActivationListenerFactory factory = context.getRuleBase().getConfiguration().getActivationListenerFactory( rule.getActivationListener() );
        TerminalNode terminal = factory.createActivationListener( context.getNextId(),
                                                                  context.getTupleSource(),
                                                                  rule,
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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 = this.geBuilders.get( ge.getType() );
       
        context.push( ge );
        context.pushRuleComponent( ge );

        builder.build( context,
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        ByteArrayInputStream byteArrayIn = new ByteArrayInputStream(byteArrayOut.toByteArray());
        FooBar fooBar2 = (FooBar) new ObjectInputStream(byteArrayIn).readObject();

        final File testFile = new File("target/test/DroolsObjectIOTest_testFileIO.dat");
        testFile.getParentFile().mkdirs();
        GroupElement testGroupElement = new GroupElement();
        DroolsStreamUtils.streamOut(new FileOutputStream(testFile), testGroupElement);

        InputStream fis = new FileInputStream(testFile);
        GroupElement streamedGroupElement = (GroupElement) DroolsStreamUtils.streamIn(new FileInputStream(testFile));

        assertEquals(streamedGroupElement, testGroupElement);
    }
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        Map<String, String> globals = packages[0].getGlobals();
        assertEquals(DefaultGenerator.class.getName(), globals.get("generator"));
        Rule[] rules = packages[0].getRules();
        assertEquals(1, rules.length);
        assertEquals("template1", rules[0].getName());
        GroupElement lhs = rules[0].getLhs();
        //when
        //  r : Row()
        //  column1 : Column(name == "column1")
        //  exists LongCell(row == r, column == column1, value == 10)
        //  column2 : Column(name == "column2")
        //  exists LongCell(row == r, column == column2, value < 5 | > 20)
        //  column3 : Column(name == "column3")
        //  exists StringCell(row == r, column == column3, value == "xyz")
        assertEquals(7, lhs.getChildren().size());
        org.drools.rule.Pattern pattern = (org.drools.rule.Pattern) lhs.getChildren().get(1);
        assertEquals(1, pattern.getConstraints().size());
        Constraint constraint = pattern.getConstraints().get(0);
        GroupElement exists = (GroupElement) lhs.getChildren().get(2);
        pattern = (org.drools.rule.Pattern) exists.getChildren().get(0);
        assertEquals(3, pattern.getConstraints().size());
        IndexableConstraint vconstraint = (IndexableConstraint)pattern.getConstraints().get(1);
        assertEquals(Column.class, vconstraint.getFieldIndex().getExtractor().getExtractToClass());
        assertEquals("column1", vconstraint.getRequiredDeclarations()[0].getIdentifier());
        pattern = (org.drools.rule.Pattern) lhs.getChildren().get(3);
        assertEquals(1, pattern.getConstraints().size());
        constraint = pattern.getConstraints().get(0);
        exists = (GroupElement) lhs.getChildren().get(4);
        pattern = (org.drools.rule.Pattern) exists.getChildren().get(0);
        assertEquals(3, pattern.getConstraints().size());
        vconstraint = (IndexableConstraint)pattern.getConstraints().get(1);
        assertEquals(Column.class, vconstraint.getFieldIndex().getExtractor().getExtractToClass());
        assertEquals("column2", vconstraint.getRequiredDeclarations()[0].getIdentifier());
        pattern = (org.drools.rule.Pattern) lhs.getChildren().get(5);
        assertEquals(1, pattern.getConstraints().size());
        constraint = pattern.getConstraints().get(0);
        exists = (GroupElement) lhs.getChildren().get(6);
        pattern = (org.drools.rule.Pattern) exists.getChildren().get(0);
        assertEquals(3, pattern.getConstraints().size());
        vconstraint = (IndexableConstraint)pattern.getConstraints().get(1);
        assertEquals(Column.class, vconstraint.getFieldIndex().getExtractor().getExtractToClass());
        assertEquals("column3", vconstraint.getRequiredDeclarations()[0].getIdentifier());
    }
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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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        final Pattern c2 = new Pattern( 1,
                                new ClassObjectType( String.class ) );
        final Pattern c3 = new Pattern( 2,
                                new ClassObjectType( String.class ) );

        final GroupElement lhsroot = GroupElementFactory.newAndInstance();
        lhsroot.addChild( c1 );
        lhsroot.addChild( c2 );
        lhsroot.addChild( c3 );

        rule.setLhs( lhsroot );

        final Consequence consequence = new Consequence() {
            public void evaluate(KnowledgeHelper knowledgeHelper,
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  • org.drools.common.DroolsObjectIOTest
  • org.drools.common.SequentialAgendaTest
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