19f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 29f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Licensed to the Apache Software Foundation (ASF) under one 39f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or more contributor license agreements. See the NOTICE file 49f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed with this work for additional information 59f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * regarding copyright ownership. The ASF licenses this file 69f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to you under the Apache License, Version 2.0 (the "License"); 79f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you may not use this file except in compliance with the License. 89f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * You may obtain a copy of the License at 99f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Unless required by applicable law or agreed to in writing, software 139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * See the License for the specific language governing permissions and 169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * limitations under the License. 179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * $Id: ReverseAxesWalker.java 513117 2007-03-01 03:28:52Z minchau $ 209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpackage org.apache.xpath.axes; 229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xml.dtm.DTM; 249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xml.dtm.DTMAxisIterator; 259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xpath.XPathContext; 269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Walker for a reverse axes. 299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see <a href="http://www.w3.org/TR/xpath#predicates">XPath 2.4 Predicates</a> 309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpublic class ReverseAxesWalker extends AxesWalker 329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson static final long serialVersionUID = 2847007647832768941L; 349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Construct an AxesWalker using a LocPathIterator. 379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param locPathIterator The location path iterator that 'owns' this walker. 399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ReverseAxesWalker(LocPathIterator locPathIterator, int axis) 419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson super(locPathIterator, axis); 439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Set the root node of the TreeWalker. 479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * (Not part of the DOM2 TreeWalker interface). 489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param root The context node of this step. 509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void setRoot(int root) 529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson super.setRoot(root); 549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_iterator = getDTM(root).getAxisIterator(m_axis); 559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_iterator.setStartNode(root); 569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Detaches the walker from the set which it iterated over, releasing 609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * any computational resources and placing the iterator in the INVALID 619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * state. 629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void detach() 649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_iterator = null; 669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson super.detach(); 679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Get the next node in document order on the axes. 719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return the next node in document order on the axes, or null. 739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson protected int getNextNode() 759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (m_foundLast) 779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return DTM.NULL; 789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int next = m_iterator.next(); 809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (m_isFresh) 829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_isFresh = false; 839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (DTM.NULL == next) 859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson this.m_foundLast = true; 869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return next; 889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Tells if this is a reverse axes. Overrides AxesWalker#isReverseAxes. 939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return true for this class. 959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean isReverseAxes() 979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return true; 999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// /** 1029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// * Set the root node of the TreeWalker. 1039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// * 1049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// * @param root The context node of this step. 1059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// */ 1069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// public void setRoot(int root) 1079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// { 1089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// super.setRoot(root); 1099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// } 1109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Get the current sub-context position. In order to do the 1139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * reverse axes count, for the moment this re-searches the axes 1149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * up to the predicate. An optimization on this is to cache 1159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the nodes searched, but, for the moment, this case is probably 1169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * rare enough that the added complexity isn't worth it. 1179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param predicateIndex The predicate index of the proximity position. 1199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The pridicate index, or -1. 1219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson protected int getProximityPosition(int predicateIndex) 1239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // A negative predicate index seems to occur with 1259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // (preceding-sibling::*|following-sibling::*)/ancestor::*[position()]/*[position()] 1269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // -sb 1279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(predicateIndex < 0) 1289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return -1; 1299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int count = m_proximityPositions[predicateIndex]; 1319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (count <= 0) 1339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson AxesWalker savedWalker = wi().getLastUsedWalker(); 1359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson try 1379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ReverseAxesWalker clone = (ReverseAxesWalker) this.clone(); 1399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setRoot(this.getRoot()); 1419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setPredicateCount(predicateIndex); 1439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setPrevWalker(null); 1459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setNextWalker(null); 1469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson wi().setLastUsedWalker(clone); 1479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Count 'em all 1499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson count++; 1509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int next; 1519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson while (DTM.NULL != (next = clone.nextNode())) 1539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson count++; 1559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_proximityPositions[predicateIndex] = count; 1589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch (CloneNotSupportedException cnse) 1609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // can't happen 1639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson finally 1659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson wi().setLastUsedWalker(savedWalker); 1679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return count; 1719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Count backwards one proximity position. 1759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param i The predicate index. 1779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson protected void countProximityPosition(int i) 1799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (i < m_proximityPositions.length) 1819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_proximityPositions[i]--; 1829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Get the number of nodes in this node list. The function is probably ill 1869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * named? 1879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param xctxt The XPath runtime context. 1909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return the number of nodes in this node list. 1929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public int getLastPos(XPathContext xctxt) 1949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int count = 0; 1979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson AxesWalker savedWalker = wi().getLastUsedWalker(); 1989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson try 2009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ReverseAxesWalker clone = (ReverseAxesWalker) this.clone(); 2029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setRoot(this.getRoot()); 2049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setPredicateCount(m_predicateIndex); 2069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setPrevWalker(null); 2089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson clone.setNextWalker(null); 2099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson wi().setLastUsedWalker(clone); 2109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Count 'em all 2129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // count = 1; 2139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int next; 2149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson while (DTM.NULL != (next = clone.nextNode())) 2169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson count++; 2189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch (CloneNotSupportedException cnse) 2219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // can't happen 2249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson finally 2269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson wi().setLastUsedWalker(savedWalker); 2289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return count; 2319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 2349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Returns true if all the nodes in the iteration well be returned in document 2359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * order. 2369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Warning: This can only be called after setRoot has been called! 2379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return false. 2399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 2409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean isDocOrdered() 2419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return false; // I think. 2439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** The DTM inner traversal class, that corresponds to the super axis. */ 2469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson protected DTMAxisIterator m_iterator; 2479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 248