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 
22 package com.sun.org.apache.xalan.internal.xsltc.dom;
23 
24 import 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  */
33 public final class FilteredStepIterator extends StepIterator {
34 
35     private Filter _filter;
36 
FilteredStepIterator(DTMAxisIterator source, DTMAxisIterator iterator, Filter filter)37     public FilteredStepIterator(DTMAxisIterator source,
38                                 DTMAxisIterator iterator,
39                                 Filter filter) {
40         super(source, iterator);
41         _filter = filter;
42     }
43 
next()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