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Java > Open Source Codes > com > sun > org > apache > xalan > internal > xsltc > NodeIterator


1 /*
2  * Copyright 2001-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 /*
17  * $Id: NodeIterator.java,v 1.5 2004/02/16 20:54:58 minchau Exp $
18  */

19
20 package com.sun.org.apache.xalan.internal.xsltc;
21
22 import com.sun.org.apache.xml.internal.dtm.DTM;
23
24 /**
25  * @author Jacek Ambroziak
26  * @author Santiago Pericas-Geertsen
27  */

28 public interface NodeIterator extends Cloneable JavaDoc {
29     public static final int END = DTM.NULL;
30
31     /**
32      * Callers should not call next() after it returns END.
33      */

34     public int next();
35
36     /**
37      * Resets the iterator to the last start node.
38      */

39     public NodeIterator reset();
40
41     /**
42      * Returns the number of elements in this iterator.
43      */

44     public int getLast();
45
46     /**
47      * Returns the position of the current node in the set.
48      */

49     public int getPosition();
50
51     /**
52      * Remembers the current node for the next call to gotoMark().
53      */

54     public void setMark();
55
56     /**
57      * Restores the current node remembered by setMark().
58      */

59     public void gotoMark();
60
61     /**
62      * Set start to END should 'close' the iterator,
63      * i.e. subsequent call to next() should return END.
64      */

65     public NodeIterator setStartNode(int node);
66
67     /**
68      * True if this iterator has a reversed axis.
69      */

70     public boolean isReverse();
71
72     /**
73      * Returns a deep copy of this iterator.
74      */

75     public NodeIterator cloneIterator();
76
77     /**
78      * Prevents or allows iterator restarts.
79      */

80     public void setRestartable(boolean isRestartable);
81
82 }
83
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