Examples with PatternDescr org.drools.drl.ast.descr.PatternDescr used on opensource projects

Example 96 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class FieldBindingHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final BindingDescr fieldBindingDescr = (BindingDescr) parser.getCurrent();
    final PatternDescr patternDescr = (PatternDescr) parser.getParent();
    patternDescr.addConstraint(fieldBindingDescr);
    return fieldBindingDescr;
}

Example 97 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class RestrictionConnectiveHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    Object op = parser.getParent();
    ConnectiveDescr c = (ConnectiveDescr) parser.getCurrent();
    if (op instanceof PatternDescr) {
        StringBuilder sb = new StringBuilder();
        c.buildExpression(sb);
        ExprConstraintDescr expr = new ExprConstraintDescr();
        expr.setExpression(sb.toString());
        final PatternDescr patternDescr = (PatternDescr) op;
        patternDescr.addConstraint(expr);
    } else {
        ConnectiveDescr p = (ConnectiveDescr) op;
        p.add(c);
    }
    return c;
}

Example 98 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class PredicateHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final String expression = ((org.w3c.dom.Text) element.getChildNodes().item(0)).getWholeText();
    if (expression == null || expression.trim().equals("")) {
        throw new SAXParseException("<predicate> must have some content", parser.getLocator());
    }
    final PatternDescr patternDescr = (PatternDescr) parser.getParent();
    ExprConstraintDescr expr = new ExprConstraintDescr("eval(" + expression + ")");
    patternDescr.addConstraint(expr);
    return expr;
}

Example 99 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class AccumulateHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final AccumulateDescr accumulateDescr = (AccumulateDescr) parser.getCurrent();
    final Object parent = parser.getParent();
    if (parent.getClass().getName().equals(FromDescr.class.getName())) {
        final PatternDescr result = (PatternDescr) parser.getParent(1);
        result.setSource(accumulateDescr);
    } else if (parent instanceof ConditionalElementDescr) {
        final ConditionalElementDescr parentDescr = (ConditionalElementDescr) parent;
        parentDescr.addDescr(accumulateDescr);
    }
    return accumulateDescr;
}

Example 100 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class NamedConsequenceVisitor method visit.

public void visit(ConditionalBranchDescr desc) {
    PatternDescr patternRelated = desc.getReferringPatternDescr(context.getParentDescr());
    if (patternRelated == null) {
        context.addCompilationError(new InvalidExpressionErrorResult("Related pattern cannot be found for " + desc));
        return;
    }
    Class<?> patternRelatedClass = getClassFromContext(context.getTypeResolver(), patternRelated.getObjectType());
    MethodCallExpr whenBlock = whenThenDSL(desc, patternRelated, patternRelatedClass, WHEN_CALL, null);
    recurseAmongElseBranch(patternRelatedClass, patternRelated, whenBlock, desc.getElseBranch());
}