jaxp/src/java.xml/share/classes/com/sun/org/apache/xalan/internal/xsltc/dom/ArrayNodeListIterator.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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package com.sun.org.apache.xalan.internal.xsltc.dom;

import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;

public class ArrayNodeListIterator implements DTMAxisIterator  {

    private int _pos = 0;

    private int _mark = 0;

    private int _nodes[];

    private static final int[] EMPTY = { };

    public ArrayNodeListIterator(int[] nodes) {
        _nodes = nodes;
    }

    public int next() {
        return _pos < _nodes.length ? _nodes[_pos++] : END;
    }

    public DTMAxisIterator reset() {
        _pos = 0;
        return this;
    }

    public int getLast() {
        return _nodes.length;
    }

    public int getPosition() {
        return _pos;
    }

    public void setMark() {
        _mark = _pos;
    }

    public void gotoMark() {
        _pos = _mark;
    }

    public DTMAxisIterator setStartNode(int node) {
        if (node == END) _nodes = EMPTY;
        return this;
    }

    public int getStartNode() {
        return END;
    }

    public boolean isReverse() {
        return false;
    }

    public DTMAxisIterator cloneIterator() {
        return new ArrayNodeListIterator(_nodes);
    }

    public void setRestartable(boolean isRestartable) {
    }

    public int getNodeByPosition(int position) {
        return _nodes[position - 1];
    }

}