Mercurial > hg > openjdk > jdk9 > jaxp
view src/java.xml/share/classes/com/sun/org/apache/xpath/internal/axes/SelfIteratorNoPredicate.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.xpath.internal.axes; import com.sun.org.apache.xml.internal.dtm.DTM; import com.sun.org.apache.xpath.internal.XPathContext; import com.sun.org.apache.xpath.internal.compiler.Compiler; /** * This class implements an optimized iterator for * "." patterns, that is, the self axes without any predicates. * @see com.sun.org.apache.xpath.internal.axes.LocPathIterator * @xsl.usage advanced */ public class SelfIteratorNoPredicate extends LocPathIterator { static final long serialVersionUID = -4226887905279814201L; /** * Create a SelfIteratorNoPredicate object. * * @param compiler A reference to the Compiler that contains the op map. * @param opPos The position within the op map, which contains the * location path expression for this itterator. * @param analysis Analysis bits. * * @throws javax.xml.transform.TransformerException */ SelfIteratorNoPredicate(Compiler compiler, int opPos, int analysis) throws javax.xml.transform.TransformerException { super(compiler, opPos, analysis, false); } /** * Create a SelfIteratorNoPredicate object. * * @throws javax.xml.transform.TransformerException */ public SelfIteratorNoPredicate() throws javax.xml.transform.TransformerException { super(null); } /** * Returns the next node in the set and advances the position of the * iterator in the set. After a NodeIterator is created, the first call * to nextNode() returns the first node in the set. * * @return The next <code>Node</code> in the set being iterated over, or * <code>null</code> if there are no more members in that set. */ public int nextNode() { if (m_foundLast) return DTM.NULL; int next; DTM dtm = m_cdtm; m_lastFetched = next = (DTM.NULL == m_lastFetched) ? m_context : DTM.NULL; // m_lastFetched = next; if (DTM.NULL != next) { m_pos++; return next; } else { m_foundLast = true; return DTM.NULL; } } /** * Return the first node out of the nodeset, if this expression is * a nodeset expression. This is the default implementation for * nodesets. Derived classes should try and override this and return a * value without having to do a clone operation. * @param xctxt The XPath runtime context. * @return the first node out of the nodeset, or DTM.NULL. */ public int asNode(XPathContext xctxt) throws javax.xml.transform.TransformerException { return xctxt.getCurrentNode(); } /** * Get the index of the last node that can be itterated to. * This probably will need to be overridded by derived classes. * * @param xctxt XPath runtime context. * * @return the index of the last node that can be itterated to. */ public int getLastPos(XPathContext xctxt) { return 1; } }