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 //  The contents of this file are subject to the Mozilla Public License
 //  Version 1.1 (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.mozilla.org/MPL/
 //
 //  Software distributed under the License is distributed on an "AS IS"
 //  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 //  the License for the specific language governing rights and
 //  limitations under the License.
//
//  The Original Code is RabbitMQ.
//
//  The Initial Developer of the Original Code is VMware, Inc.
//  Copyright (c) 2007-2012 VMware, Inc.  All rights reserved.
//
package com.rabbitmq.utility;
public class ValueOrException<V, E extends Throwable & SensibleClone<E>> {
    private final boolean _useValue;
    private final V _value;
    private final E _exception;

    
dual-purpose private constructor: one will be null, and the flag tells which to use

Parameters:
value the value to wrap, if applicable
exception the exception to wrap, if applicable
useValue true if we should use the value, rather than the exception
    private ValueOrException(V value, E exceptionboolean useValue) {
         = useValue;
        if (useValue) {
             = value;
             = null;
        } else {
             = null;
             = exception;
        }
    }

    
Factory method for values

Parameters:
value the value to wrap as a ValueOrException
Returns:
the wrapped value
    public static <V, E extends Throwable & SensibleClone<E>> ValueOrException<V, E> makeValue(V value) {
        return new ValueOrException<V, E>(valuenulltrue);
    }

    
Factory method for exceptions

Parameters:
exception the exception to wrap as a ValueOrException
Returns:
the wrapped exception
    public static <V, E extends Throwable & SensibleClone<E>> ValueOrException<V, E> makeException(E exception) {
        return new ValueOrException<V, E>(nullexceptionfalse);
    }

    
Retrieve value or throw exception

Returns:
the wrapped value, if it's a value
Throws:
E the wrapped exception, if it's an exception
    public V getValue() throws E {
        if () {
            return ;
        } else {
            throw Utility.fixStackTrace();
        }
    }
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