Package org.jrdf.query.expression

Examples of org.jrdf.query.expression.Union

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    private Expression distributeConjunctionWithUnion(Union lhs, Expression rhs) {
        Expression uLhs = lhs.getLhs();
        Expression uRhs = lhs.getRhs();
        Expression newConj1 = getNext(new Conjunction(rhs, uLhs));
        Expression newConj2 = getNext(new Conjunction(rhs, uRhs));
        return getNext(new Union(newConj1, newConj2));
    }
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    public Void visitUnion(Union conjunction) {
        final Expression lhs = getNext(conjunction.getLhs());
        final Expression rhs = getNext(conjunction.getRhs());
        if (EXPRESSION_COMPARATOR.compare(lhs, rhs) <= 0) {
            expression = new Union(lhs, rhs);
        } else {
            expression = new Union(rhs, lhs);
        }
        return null;
    }
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                    (org.jrdf.sparql.parser.node.Node) pUnionGraphPattern.clone());
                expressions.add(rhs);
            }
            Expression lhsSide = lhs;
            for (Expression currentExpression : expressions) {
                lhsSide = new Union(lhsSide, currentExpression);
            }
            expression = lhsSide;
        } else {
            super.caseAGroupOrUnionGraphPattern(node);
        }
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Related Classes of org.jrdf.query.expression.Union

  • org.jrdf.query.execute.ExpressionSimplifierImpl
  • org.jrdf.sparql.analysis.WhereAnalyserImpl
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