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Jakarta Standard Tag Library Implementation
/*
* Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved.
* Copyright 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.
*/
package org.apache.taglibs.standard.lang.jstl;
/**
*
* Represents any of the exception conditions that arise during the
* operation evaluation of the evaluator.
*
* @author Nathan Abramson - Art Technology Group
* @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: kchung $
**/
public class ELException
extends Exception
{
//-------------------------------------
// Member variables
//-------------------------------------
Throwable mRootCause;
//-------------------------------------
/**
*
* Constructor
**/
public ELException ()
{
super ();
}
//-------------------------------------
/**
*
* Constructor
**/
public ELException (String pMessage)
{
super (pMessage);
}
//-------------------------------------
/**
*
* Constructor
**/
public ELException (Throwable pRootCause)
{
mRootCause = pRootCause;
}
//-------------------------------------
/**
*
* Constructor
**/
public ELException (String pMessage,
Throwable pRootCause)
{
super (pMessage);
mRootCause = pRootCause;
}
//-------------------------------------
/**
*
* Returns the root cause
**/
public Throwable getRootCause ()
{
return mRootCause;
}
//-------------------------------------
/**
*
* String representation
**/
public String toString ()
{
if (getMessage () == null) {
return mRootCause.toString ();
}
else if (mRootCause == null) {
return getMessage ();
}
else {
return getMessage () + ": " + mRootCause;
}
}
//-------------------------------------
}