Package org.drools.core.rule

Examples of org.drools.core.rule.RuleConditionElement

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            // NOT must save some context info to restore it later
            final int currentPatternIndex = context.getCurrentPatternOffset();
            final LeftTupleSource tupleSource = context.getTupleSource();

            // get child
            final RuleConditionElement child = not.getChildren().get( 0 );

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

            // builds the child
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            // 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 = exists.getChildren().get( 0 );

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

            // builds the child
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        }
    }

    private boolean isNegative(final BuildContext context) {
        for ( ListIterator<RuleConditionElement> it = context.stackIterator(); it.hasPrevious(); ) {
            RuleConditionElement rce = it.previous();
            if ( rce instanceof GroupElement && ((GroupElement) rce).isNot() ) {
                return true;
            }
        }
        return false;
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        }
    }

    private boolean isNegative(final BuildContext context) {
        for ( ListIterator<RuleConditionElement> it = context.stackIterator(); it.hasPrevious(); ) {
            RuleConditionElement rce = it.previous();
            if ( rce instanceof GroupElement && ((GroupElement) rce).isNot() ) {
                return true;
            }
        }
        return false;
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        if( input instanceof AndDescr && ((AndDescr) input).getDescrs().size() == 1 ) {
            input = ((AndDescr) input).getDescrs().get( 0 );
        }
       
        final RuleConditionBuilder builder = (RuleConditionBuilder) context.getDialect().getBuilder( input.getClass() );
        final RuleConditionElement source = builder.build( context,
                                                           input );
        if ( source == null ) {
            return null;
        }
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            }

            final RuleConditionBuilder builder = (RuleConditionBuilder) context.getDialect().getBuilder( accumDescr.getInput().getClass() );

            // create source CE
            final RuleConditionElement source = builder.build( context,
                                                               accumDescr.getInput() );

            if ( source == null ) {
                return null;
            }

            MVELDialect dialect = (MVELDialect) context.getDialect();

            Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations( context.getRule() );
            Map<String, Declaration> sourceOuterDeclr = source.getOuterDeclarations();

            Map<String, Declaration> mergedDecl = new HashMap( decls );
            mergedDecl.putAll( sourceOuterDeclr );

            Map<String, Class< ? >> declarationClasses = context.getDeclarationResolver().getDeclarationClasses( decls );
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            }
        }

        // lets see if it maps to a query
        if ( objectType == null ) {
            RuleConditionElement rce = null;
            // it might be a recursive query, so check for same names
            if ( context.getRule().getName().equals( patternDescr.getObjectType() ) ) {
                // it's a query so delegate to the QueryElementBuilder
                QueryElementBuilder qeBuilder = QueryElementBuilder.getInstance();
                rce = qeBuilder.build( context,
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        Rule r = ((RuleImpl) rule).getRule();

        assertEquals( 2, r.getLhs().getChildren().size() );
        Iterator<RuleConditionElement> iter = r.getLhs().getChildren().iterator();

        RuleConditionElement arg1 = iter.next();
        assertTrue( arg1 instanceof GroupElement && ((GroupElement) arg1).getType() == GroupElement.Type.OR );
        assertEquals( 2, ((GroupElement) arg1).getChildren().size() );

        RuleConditionElement arg2 = iter.next();
        assertTrue( arg2 instanceof Pattern);

    }
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        return lastPattern;
    }

    private Pattern getLastPattern(List<RuleConditionElement> siblings) {
        for (int i = siblings.size()-1; i >= 0; i--) {
            RuleConditionElement element = siblings.get(i);
            if (element instanceof Pattern) {
                return (Pattern) element;
            }
        }
        return null;
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            // 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 );
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Related Classes of org.drools.core.rule.RuleConditionElement

  • org.drools.compiler.lang.api.DescrBuilderTest
  • org.drools.compiler.rule.builder.ConditionalBranchBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELAccumulateBuilder
  • org.drools.compiler.rule.builder.GroupElementBuilder
  • org.drools.compiler.rule.builder.PatternBuilder
  • org.drools.core.reteoo.builder.AccumulateBuilder
  • org.drools.core.reteoo.builder.GroupElementBuilder$AndBuilder
  • org.drools.core.reteoo.builder.GroupElementBuilder$ExistsBuilder
  • org.drools.core.reteoo.builder.GroupElementBuilder$NotBuilder
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