Examples with IfAxis org.sirix.service.xml.xpath.expr.IfAxis used on opensource projects

Example 1 with IfAxis

use of org.sirix.service.xml.xpath.expr.IfAxis in project sirix by sirixdb.

the class PipelineBuilder method addIfExpression.

/**
 * Adds a if expression to the pipeline.
 *
 * @param mTransaction Transaction to operate with.
 */
public void addIfExpression(final XdmNodeReadTrx mTransaction) {
    assert getPipeStack().size() >= 3;
    final XdmNodeReadTrx rtx = mTransaction;
    final Axis elseExpr = getPipeStack().pop().getExpr();
    final Axis thenExpr = getPipeStack().pop().getExpr();
    final Axis ifExpr = getPipeStack().pop().getExpr();
    if (getPipeStack().empty() || getExpression().getSize() != 0) {
        addExpressionSingle();
    }
    getExpression().add(new IfAxis(rtx, ifExpr, thenExpr, elseExpr));
}