| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * 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. |
| */ |
| |
| package com.sun.org.apache.xalan.internal.xsltc.dom; |
| |
| import com.sun.org.apache.xalan.internal.xsltc.runtime.BasisLibrary; |
| import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator; |
| import com.sun.org.apache.xml.internal.dtm.ref.DTMAxisIteratorBase; |
| import com.sun.org.apache.xml.internal.dtm.ref.DTMDefaultBase; |
| |
| /** |
| * Absolute iterators ignore the node that is passed to setStartNode(). |
| * Instead, they always start from the root node. The node passed to |
| * setStartNode() is not totally useless, though. It is needed to obtain the |
| * DOM mask, i.e. the index into the MultiDOM table that corresponds to the |
| * DOM "owning" the node. |
| * |
| * The DOM mask is cached, so successive calls to setStartNode() passing |
| * nodes from other DOMs will have no effect (i.e. this iterator cannot |
| * migrate between DOMs). |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| */ |
| public final class AbsoluteIterator extends DTMAxisIteratorBase { |
| |
| /** |
| * Source for this iterator. |
| */ |
| private DTMAxisIterator _source; |
| |
| public AbsoluteIterator(DTMAxisIterator source) { |
| _source = source; |
| // System.out.println("AI source = " + source + " this = " + this); |
| } |
| |
| public void setRestartable(boolean isRestartable) { |
| _isRestartable = isRestartable; |
| _source.setRestartable(isRestartable); |
| } |
| |
| public DTMAxisIterator setStartNode(int node) { |
| _startNode = DTMDefaultBase.ROOTNODE; |
| if (_isRestartable) { |
| _source.setStartNode(_startNode); |
| resetPosition(); |
| } |
| return this; |
| } |
| |
| public int next() { |
| return returnNode(_source.next()); |
| } |
| |
| public DTMAxisIterator cloneIterator() { |
| try { |
| final AbsoluteIterator clone = (AbsoluteIterator) super.clone(); |
| clone._source = _source.cloneIterator(); // resets source |
| clone.resetPosition(); |
| clone._isRestartable = false; |
| return clone; |
| } |
| catch (CloneNotSupportedException e) { |
| BasisLibrary.runTimeError(BasisLibrary.ITERATOR_CLONE_ERR, |
| e.toString()); |
| return null; |
| } |
| } |
| |
| public DTMAxisIterator reset() { |
| _source.reset(); |
| return resetPosition(); |
| } |
| |
| public void setMark() { |
| _source.setMark(); |
| } |
| |
| public void gotoMark() { |
| _source.gotoMark(); |
| } |
| } |