1/*
2 * reserved comment block
3 * DO NOT REMOVE OR ALTER!
4 */
5/*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements.  See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License.  You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22package com.sun.org.apache.xalan.internal.xsltc.dom;
23
24import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
25
26/**
27 * Extends a StepIterator by adding the ability to filter nodes. It
28 * uses filters similar to those of a FilterIterator.
29 * @author Jacek Ambroziak
30 * @author Santiago Pericas-Geertsen
31 * @author Morten Jorgensen
32 */
33public final class FilteredStepIterator extends StepIterator {
34
35    private Filter _filter;
36
37    public FilteredStepIterator(DTMAxisIterator source,
38                                DTMAxisIterator iterator,
39                                Filter filter) {
40        super(source, iterator);
41        _filter = filter;
42    }
43
44    public int next() {
45        int node;
46        while ((node = super.next()) != END) {
47            if (_filter.test(node)) {
48                return returnNode(node);
49            }
50        }
51        return node;
52    }
53
54}
55