Package org.apache.commons.codec
Interface Decoder
- All Known Subinterfaces:
- BinaryDecoder,- StringDecoder
- All Known Implementing Classes:
- Base16,- Base32,- Base64,- BaseNCodec,- BCodec,- BinaryCodec,- Hex,- PercentCodec,- QCodec,- QuotedPrintableCodec,- 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.
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Method Summary
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Method Details- 
decodeDecodes 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 aClassCastExceptionoccurs this decode method will throw a DecoderException.- Parameters:
- source- the 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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