001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.contrib.ejb;
016    
017    import javax.ejb.EJBException;
018    
019    /**
020     *  Extended version of {@link EJBException} that includes a root cause.
021     *  {@link EJBException} doesn't have quite the right constructor for this ...
022     *  it has an equivalent to the rootCause property, (causedByException), but
023     *  doesn't have a constructor that allows us to set a custom message.
024     *
025     *  @author Howard Lewis Ship
026     *
027     **/
028    
029    public class XEJBException extends EJBException
030    {
031        private static final long serialVersionUID = 3712108893575174833L;
032        
033        private final Throwable _rootCause;
034    
035        public XEJBException(String message)
036        {
037            super(message);
038            _rootCause = null;
039        }
040    
041        public XEJBException(String message, Throwable rootCause)
042        {
043            super(message);
044    
045            this._rootCause = rootCause;
046        }
047    
048        public XEJBException(Throwable rootCause)
049        {
050            super(rootCause.getMessage());
051    
052            this._rootCause = rootCause;
053        }
054    
055        public Throwable getRootCause()
056        {
057            return _rootCause;
058        }
059    }