encobjectreader.java

Java Communicating Agents是一个用于开发网络反应式信息agent的框架

/*
 * $Source: /home/data/cvsroot/src/jacomma/icm/io/EncObjectReader.java,v $
 * $Revision: 1.7 $
 * $Date: 2000/10/28 20:09:07 $
 *
 * This file is part of the jacomma framework
 * Copyright (c) 2000 	Dimitrios Vyzovitis
 *			mailto:[e-mail]
 *			
 *
 *			
 *			
 *			
 *
 *	This library is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU Library General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This library is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU Library General Public License for more details.
 *
 *	You should have received a copy of the GNU Library General Public License
 *	along with this library; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, 
 *	Boston, MA  02111-1307  USA
 */

package jacomma.icm.io;

import jacomma.util.Environment;

/**
 * Usage:
 * for( rd.start(); rd.hasNext(); rd.readNext() );
 * rd.getObject(); // process object
 **/
public interface EncObjectReader extends jacomma.util.Prototype {

	public void start( java.io.InputStream stream ) throws java.io.IOException;
	
	public boolean hasNext();
	public void readNext() throws java.io.IOException;

	public EncObject getObject();

	public boolean canHandle( EncObjectType t );

	public static interface Registry {
		
		public void load( java.util.Properties prop );
		public EncObjectReader getReader( EncObjectType t );
		public void registerReader( java.util.Collection types, Class c );
		public void registerReader( EncObjectType t, EncObjectReader wr );

		public void dump();
		
		public static final Registry instance = (Registry)Environment.newRegistry( EncObjectReader.class );
	}
	
}