indirectionexception.java

来自「java1.6众多例子参考」· Java 代码 · 共 53 行

/*
 * @(#)IndirectionException.java	1.15 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Licensed Materials - Property of IBM
 * RMI-IIOP v1.0
 * Copyright IBM Corp. 1998 1999  All Rights Reserved
 *
 * US Government Users Restricted Rights - Use, duplication or
 * disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

package org.omg.CORBA.portable;

import org.omg.CORBA.SystemException;
/**
 * The Indirection exception is a Java specific system exception. 
 * It is thrown when the ORB's input stream is called to demarshal 
 * a value that is encoded as an indirection that is in the process 
 * of being demarshaled. This can occur when the ORB input stream 
 * calls the ValueHandler to demarshal an RMI value whose state 
 * contains a recursive reference to itself. Because the top-level 
 * ValueHandler.read_value() call has not yet returned a value, 
 * the ORB input stream's indirection table does not contain an entry 
 * for an object with the stream offset specified by the indirection 
 * tag. The stream offset is returned in the exception's offset field.
 * @see org.omg.CORBA_2_3.portable.InputStream
 * @see org.omg.CORBA_2_3.portable.OutputStream
 */
public class IndirectionException extends SystemException {

    /**
     * Points to the stream's offset.
     */
    public int offset;

    /**
     * Creates an IndirectionException with the right offset value.
     * The stream offset is returned in the exception's offset field.
     * This exception is constructed and thrown during reading 
     * recursively defined values off of a stream.
     *
     * @param offset the stream offset where recursion is detected.
     */
    public IndirectionException(int offset){
	super("", 0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
	this.offset = offset;
    }
}