org.ajax4jsf.util.base64

## Interface Decoder

- All Known Subinterfaces:
    BinaryDecoder
  All Known Implementing Classes:
    URL64Codec, URLCodec

      public interface Decoder

  Provides the highest level of abstraction for Decoders. This is the sister interface of `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.

  Version:
    $Id: Decoder.java,v 1.1.2.1 2007/01/09 18:59:14 alexsmirnov Exp $
  Author:
    Apache Software Foundation

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `decode(Object pObject)` Decodes an "encoded" Object and returns a "decoded" Object.

- - ### Method Detail

    - #### decode

          Object decode(Object pObject)
                        throws DecoderException

      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 `ClassCastException` occurs this decode method will throw a DecoderException.
      Parameters:
        `pObject` - an object to "decode"
      Returns:
        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.

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