commandexception.java

用command模式写的一个简单的java 程序

/******************************************************************************
*  Filename    :CommandException.java
*  Description :CommandException that wraps Exception.
*		Any unrecoverable error that a Command encounters should cause 
*		the Command to throw a CommandException, and the shell will 
*		handle it gracefully.
*
*  Author      :xunzy
*
*  History     :2004-02-16   Created
******************************************************************************/
public class CommandException extends Exception {
    
    Exception e; // root exception
    
    CommandException(Exception e, String message) {
        super(message);
        this.e = e;
    }
    
    public Exception getRootException() {
        return e;
    }
}