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Ajax4jsf is an open source extension to the JavaServer Faces standard that adds AJAX capability to JSF applications without requiring the writing of any JavaScript.

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/*
 * Copyright 2001-2004 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.ajax4jsf.framework.util.base64;

/**
 * 

Provides the highest level of abstraction for Decoders. * This is the sister interface of {@link Encoder}. All * Decoders implement this common generic interface.

* *

Allows a user to pass a generic Object to any Decoder * implementation in the codec package.

* *

One of the two interfaces at the center of the codec package.

* * @author Apache Software Foundation * @version $Id: Decoder.java,v 1.1 2006/04/28 02:04:00 sergeysmirnov Exp $ */ public interface Decoder { /** * Decodes an "encoded" Object and returns a "decoded" * Object. Note that the implementation of this * interface will try to cast the Object parameter * to the specific type expected by a particular Decoder * implementation. If a {@link java.lang.ClassCastException} occurs * this decode method will throw a DecoderException. * * @param pObject an object to "decode" * * @return a 'decoded" object * * @throws DecoderException a decoder exception can * be thrown for any number of reasons. Some good * candidates are that the parameter passed to this * method is null, a param cannot be cast to the * appropriate type for a specific encoder. */ Object decode(Object pObject) throws DecoderException; }




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