- /*
- * 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.extensions;
-
- import java.util.Hashtable;
-
- /**
- * <meta name="usage" content="internal"/>
- * Abstract base class handling the java language extensions for XPath.
- * This base class provides cache management shared by all of the
- * various java extension handlers.
- *
- */
- public abstract class ExtensionHandlerJava extends ExtensionHandler
- {
-
- /** Extension class name */
- protected String m_className = "";
-
- /** Table of cached methods */
- private Hashtable m_cachedMethods = new Hashtable();
-
- /**
- * Construct a new extension handler given all the information
- * needed.
- *
- * @param namespaceUri the extension namespace URI that I'm implementing
- * @param funcNames string containing list of functions of extension NS
- * @param lang language of code implementing the extension
- * @param srcURL value of src attribute (if any) - treated as a URL
- * or a classname depending on the value of lang. If
- * srcURL is not null, then scriptSrc is ignored.
- * @param scriptSrc the actual script code (if any)
- * @param scriptLang the scripting language
- * @param className the extension class name
- */
- protected ExtensionHandlerJava(String namespaceUri, String scriptLang,
- String className)
- {
-
- super(namespaceUri, scriptLang);
-
- m_className = className;
- }
-
- /**
- * Look up the entry in the method cache.
- * @param methodKey A key that uniquely identifies this invocation in
- * the stylesheet.
- * @param objType A Class object or instance object representing the type
- * @param methodArgs An array of the XObject arguments to be used for
- * function mangling.
- *
- * @return The given method from the method cache
- */
- public Object getFromCache(Object methodKey, Object objType,
- Object[] methodArgs)
- {
-
- // Eventually, we want to insert code to mangle the methodKey with methodArgs
- return m_cachedMethods.get(methodKey);
- }
-
- /**
- * Add a new entry into the method cache.
- * @param methodKey A key that uniquely identifies this invocation in
- * the stylesheet.
- * @param objType A Class object or instance object representing the type
- * @param methodArgs An array of the XObject arguments to be used for
- * function mangling.
- * @param methodObj A Class object or instance object representing the method
- *
- * @return The cached method object
- */
- public Object putToCache(Object methodKey, Object objType,
- Object[] methodArgs, Object methodObj)
- {
-
- // Eventually, we want to insert code to mangle the methodKey with methodArgs
- return m_cachedMethods.put(methodKey, methodObj);
- }
- }