Mercurial > hg > openjdk > jdk9 > jaxp
view src/java.xml/share/classes/com/sun/org/apache/xalan/internal/xsltc/dom/FilterIterator.java @ 1113:2fdbfbde3bc0
8162572: Update License Header for all JAXP sources
Reviewed-by: lancea
author | joehw |
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date | Mon, 17 Apr 2017 16:24:10 -0700 |
parents | 2bfaf29cc90b |
children |
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/* * 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.DTMFilter; import com.sun.org.apache.xml.internal.dtm.DTMIterator; import com.sun.org.apache.xml.internal.dtm.ref.DTMAxisIteratorBase; /** * Similar to a CurrentNodeListIterator except that the filter has a * simpler interface (only needs the node, no position, last, etc.) * It takes a source iterator and a Filter object and returns nodes * from the source after filtering them by calling filter.test(node). * @author Jacek Ambroziak * @author Santiago Pericas-Geertsen */ public final class FilterIterator extends DTMAxisIteratorBase { /** * Reference to source iterator. */ private DTMAxisIterator _source; /** * Reference to a filter object that to be applied to each node. */ private final DTMFilter _filter; /** * A flag indicating if position is reversed. */ private final boolean _isReverse; public FilterIterator(DTMAxisIterator source, DTMFilter filter) { _source = source; // System.out.println("FI souce = " + source + " this = " + this); _filter = filter; _isReverse = source.isReverse(); } public boolean isReverse() { return _isReverse; } public void setRestartable(boolean isRestartable) { _isRestartable = isRestartable; _source.setRestartable(isRestartable); } public DTMAxisIterator cloneIterator() { try { final FilterIterator clone = (FilterIterator) super.clone(); clone._source = _source.cloneIterator(); clone._isRestartable = false; return clone.reset(); } catch (CloneNotSupportedException e) { BasisLibrary.runTimeError(BasisLibrary.ITERATOR_CLONE_ERR, e.toString()); return null; } } public DTMAxisIterator reset() { _source.reset(); return resetPosition(); } public int next() { int node; while ((node = _source.next()) != END) { if (_filter.acceptNode(node, DTMFilter.SHOW_ALL) == DTMIterator.FILTER_ACCEPT) { return returnNode(node); } } return END; } public DTMAxisIterator setStartNode(int node) { if (_isRestartable) { _source.setStartNode(_startNode = node); return resetPosition(); } return this; } public void setMark() { _source.setMark(); } public void gotoMark() { _source.gotoMark(); } }