/*

 * All Sigmah code is released under the GNU General Public License v3

 * See COPYRIGHT.txt and LICENSE.txt.

 */



package org.sigmah.endtoend.xpath;



public class Step {

    private Axis axis;

    private NodeTest nodeTest;

    private Predicate[] predicates;



    Step(Axis axis, NodeTest nodeTest, Predicate[] predicates) {

        this(axis, predicates);

        this.nodeTest = nodeTest;

    }



    Step(Axis axis, Predicate[] predicates) {

        this.axis = axis;

        this.predicates = predicates;

    }



    public Step(Axis axis, NodeTest nodeTest) {

        this.axis = axis;

        this.nodeTest = nodeTest;

        this.predicates = new Predicate[0];

    }



    @Override

    public String toString() {

        StringBuilder step = new StringBuilder();

        step.append(axis.getKeyword()).append("::");

        step.append(nodeTest == null ? "*" : nodeTest.toString());



        for(Predicate predicate : predicates) {

            step.append("[");

            step.append(predicate.toString());

            step.append("]");

        }

        return step.toString();

    }

}