| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, Lotus |
| * Development Corporation., http://www.lotus.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.xalan.transformer; |
| |
| import java.util.Hashtable; |
| import java.util.Vector; |
| |
| import javax.xml.transform.TransformerException; |
| import org.apache.xml.dtm.DTM; |
| import org.apache.xml.utils.PrefixResolver; |
| import org.apache.xml.utils.QName; |
| import org.apache.xml.utils.XMLString; |
| import org.apache.xpath.XPathContext; |
| import org.apache.xpath.objects.XNodeSet; |
| |
| /** |
| * <meta name="usage" content="advanced"/> |
| * Table of element keys, keyed by document node. An instance of this |
| * class is keyed by a Document node that should be matched with the |
| * root of the current context. It contains a table of name mappings |
| * to tables that contain mappings of identifier values to nodes. |
| */ |
| public class KeyTable |
| { |
| |
| /** |
| * The document key. This table should only be used with contexts |
| * whose Document roots match this key. |
| */ |
| private int m_docKey; |
| |
| /** |
| * Get the document root matching this key. |
| * |
| * |
| * @return the document root matching this key |
| */ |
| public int getDocKey() |
| { |
| return m_docKey; |
| } |
| |
| /** |
| * The main iterator that will walk through the source |
| * tree for this key. |
| */ |
| private XNodeSet m_keyNodes; |
| |
| KeyIterator getKeyIterator() |
| { |
| return (KeyIterator)(m_keyNodes.getContainedIter()); |
| } |
| |
| /** |
| * Build a keys table. |
| * @param doc The owner document key. |
| * @param nscontext The stylesheet's namespace context. |
| * @param name The key name |
| * @param keyDeclarations The stylesheet's xsl:key declarations. |
| * @param xmlLiaison The parser liaison for support of getNodeData(useNode). |
| * |
| * @throws javax.xml.transform.TransformerException |
| */ |
| public KeyTable( |
| int doc, PrefixResolver nscontext, QName name, Vector keyDeclarations, XPathContext xctxt) |
| throws javax.xml.transform.TransformerException |
| { |
| |
| m_docKey = doc; |
| KeyIterator ki = new KeyIterator(name, keyDeclarations); |
| |
| m_keyNodes = new XNodeSet(ki); |
| m_keyNodes.allowDetachToRelease(false); |
| |
| m_keyNodes.setRoot(xctxt.getDTM(doc).getDocument(), xctxt); |
| } |
| |
| /** |
| * Given a valid element key, return the corresponding node list. |
| * |
| * @param The name of the key, which must match the 'name' attribute on xsl:key. |
| * @param ref The value that must match the value found by the 'match' attribute on xsl:key. |
| * @return If the name was not declared with xsl:key, this will return null, |
| * if the identifier is not found, it will return null, |
| * otherwise it will return a LocPathIterator instance. |
| */ |
| public XNodeSet getNodeSetDTMByKey(QName name, XMLString ref) |
| { |
| Vector keyDecls = getKeyIterator().getKeyDeclarations(); |
| org.apache.xml.dtm.DTMIterator keyNodes = m_keyNodes.iter(); |
| XNodeSet refNodes = new XNodeSet( new KeyRefIterator(name, ref, keyDecls, keyNodes) ); |
| |
| // I don't think setRoot needs to be called on refNodes! |
| return refNodes; |
| |
| } |
| |
| /** |
| * Get Key Name for this KeyTable |
| * |
| * |
| * @return Key name |
| */ |
| public QName getKeyTableName() |
| { |
| return getKeyIterator().getName(); |
| } |
| |
| } |