- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed 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.
- */
- /*
- * $Id: CoroutineParser.java,v 1.8 2004/02/16 23:06:11 minchau Exp $
- */
-
- package com.sun.org.apache.xml.internal.dtm.ref;
-
- import org.xml.sax.ContentHandler;
- import org.xml.sax.InputSource;
- import org.xml.sax.XMLReader;
-
- /** <p>CoroutineParser is an API for parser threads that operate as
- * coroutines. See CoroutineSAXParser and CoroutineSAXParser_Xerces
- * for examples.</p>
- *
- * <p><grumble> I'd like the interface to require a specific form
- * for either the base constructor or a static factory method. Java
- * doesn't allow us to specify either, so I'll just document them
- * here:
- *
- * <ul>
- * <li>public CoroutineParser(CoroutineManager co, int appCoroutine);</li>
- * <li>public CoroutineParser createCoroutineParser(CoroutineManager co, int appCoroutine);</li>
- * </ul>
- *
- * </grumble></p>
- *
- * @deprecated Since the ability to start a parse via the
- * coroutine protocol was not being used and was complicating design.
- * See {@link IncrementalSAXSource}.
- * */
- public interface CoroutineParser {
-
- /** @return the coroutine ID number for this CoroutineParser object.
- * Note that this isn't useful unless you know which CoroutineManager
- * you're talking to. Also note that the do...() methods encapsulate
- * the common transactions with the CoroutineParser, so you shouldn't
- * need this in most cases.
- * */
- public int getParserCoroutineID();
-
- /** @return the CoroutineManager for this CoroutineParser object.
- * If you're using the do...() methods, applications should only
- * need to talk to the CoroutineManager once, to obtain the
- * application's Coroutine ID.
- * */
- public CoroutineManager getCoroutineManager();
-
- /** Register a SAX-style content handler for us to output to */
- public void setContentHandler(ContentHandler handler);
-
- /** Register a SAX-style lexical handler for us to output to
- * Not all parsers support this...
- *
- * %REVIEW% Not called setLexicalHandler because Xalan uses that name
- * internally, which causes subclassing nuisances.
- */
- public void setLexHandler(org.xml.sax.ext.LexicalHandler handler);
-
- /* The run() method is required in CoroutineParsers that run as
- * threads (of course)... but it isn't part of our API, and
- * shouldn't be declared here.
- * */
-
- //================================================================
- /** doParse() is a simple API which tells the coroutine parser
- * to begin reading from a file. This is intended to be called from one
- * of our partner coroutines, and serves both to encapsulate the
- * communication protocol and to avoid having to explicitly use the
- * CoroutineParser's coroutine ID number.
- *
- * %REVIEW% Can/should this unify with doMore? (if URI hasn't changed,
- * parse more from same file, else end and restart parsing...?
- *
- * @param source The InputSource to parse from.
- * @param appCoroutine The coroutine ID number of the coroutine invoking
- * this method, so it can be resumed after the parser has responded to the
- * request.
- * @return Boolean.TRUE if the CoroutineParser believes more data may be available
- * for further parsing. Boolean.FALSE if parsing ran to completion.
- * Exception if the parser objected for some reason.
- * */
- public Object doParse(InputSource source, int appCoroutine);
-
- /** doMore() is a simple API which tells the coroutine parser
- * that we need more nodes. This is intended to be called from one
- * of our partner coroutines, and serves both to encapsulate the
- * communication protocol and to avoid having to explicitly use the
- * CoroutineParser's coroutine ID number.
- *
- * @param parsemore If true, tells the incremental parser to generate
- * another chunk of output. If false, tells the parser that we're
- * satisfied and it can terminate parsing of this document.
- * @param appCoroutine The coroutine ID number of the coroutine invoking
- * this method, so it can be resumed after the parser has responded to the
- * request.
- * @return Boolean.TRUE if the CoroutineParser believes more data may be available
- * for further parsing. Boolean.FALSE if parsing ran to completion.
- * Exception if the parser objected for some reason.
- * */
- public Object doMore (boolean parsemore, int appCoroutine);
-
- /** doTerminate() is a simple API which tells the coroutine
- * parser to terminate itself. This is intended to be called from
- * one of our partner coroutines, and serves both to encapsulate the
- * communication protocol and to avoid having to explicitly use the
- * CoroutineParser's coroutine ID number.
- *
- * Returns only after the CoroutineParser has acknowledged the request.
- *
- * @param appCoroutine The coroutine ID number of the coroutine invoking
- * this method, so it can be resumed after the parser has responded to the
- * request.
- * */
- public void doTerminate(int appCoroutine);
-
- /**
- * Initialize the coroutine parser. Same parameters could be passed
- * in a non-default constructor, or by using using context ClassLoader
- * and newInstance and then calling init()
- */
- public void init( CoroutineManager co, int appCoroutineID, XMLReader parser );
-
- } // class CoroutineParser