Examples with ValueExpr org.eclipse.rdf4j.query.algebra.ValueExpr used on opensource projects

Example 1 with ValueExpr

use of org.eclipse.rdf4j.query.algebra.ValueExpr in project rdf4j by eclipse.

the class GraphPattern method addOptionalTE.

public void addOptionalTE(GraphPattern gp) {
    List<ValueExpr> constraints = gp.removeAllConstraints();
    TupleExpr tupleExpr = gp.buildTupleExpr();
    OptionalTupleExpr optTE;
    if (constraints.isEmpty()) {
        optTE = new OptionalTupleExpr(tupleExpr);
    } else {
        ValueExpr constraint = constraints.get(0);
        for (int i = 1; i < constraints.size(); i++) {
            constraint = new And(constraint, constraints.get(i));
        }
        optTE = new OptionalTupleExpr(tupleExpr, constraint);
    }
    optionalTEs.add(optTE);
}

Example 2 with ValueExpr

use of org.eclipse.rdf4j.query.algebra.ValueExpr in project rdf4j by eclipse.

the class QueryModelBuilder method visit.

@Override
public Like visit(ASTLike node, Object data) throws VisitorException {
    ValueExpr expr = (ValueExpr) node.getValueExpr().jjtAccept(this, null);
    String pattern = (String) node.getPattern().jjtAccept(this, null);
    boolean caseSensitive = !node.ignoreCase();
    return new Like(expr, pattern, caseSensitive);
}

Example 3 with ValueExpr

use of org.eclipse.rdf4j.query.algebra.ValueExpr in project rdf4j by eclipse.

the class QueryModelBuilder method visit.

@Override
public CompareAny visit(ASTCompareAny node, Object data) throws VisitorException {
    ValueExpr valueExpr = (ValueExpr) node.getLeftOperand().jjtAccept(this, null);
    TupleExpr tupleExpr = (TupleExpr) node.getRightOperand().jjtAccept(this, null);
    CompareOp op = node.getOperator().getValue();
    return new CompareAny(valueExpr, tupleExpr, op);
}

Example 4 with ValueExpr

use of org.eclipse.rdf4j.query.algebra.ValueExpr in project rdf4j by eclipse.

the class QueryModelBuilder method visit.

@Override
public Compare visit(ASTCompare node, Object data) throws VisitorException {
    ValueExpr leftArg = (ValueExpr) node.getLeftOperand().jjtAccept(this, null);
    ValueExpr rightArg = (ValueExpr) node.getRightOperand().jjtAccept(this, null);
    CompareOp operator = node.getOperator().getValue();
    return new Compare(leftArg, rightArg, operator);
}

Example 5 with ValueExpr

use of org.eclipse.rdf4j.query.algebra.ValueExpr in project rdf4j by eclipse.

the class QueryModelBuilder method visit.

@Override
public In visit(ASTIn node, Object data) throws VisitorException {
    ValueExpr valueExpr = (ValueExpr) node.getLeftOperand().jjtAccept(this, null);
    TupleExpr tupleExpr = (TupleExpr) node.getRightOperand().jjtAccept(this, null);
    return new In(valueExpr, tupleExpr);
}