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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.commons.codec;

/**
 * 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. *

*/ 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 ClassCastException} occurs this decode method will throw a DecoderException. * * @param source * the 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 source) throws DecoderException; }




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