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public interface Decompressor
Specification of a stream-based 'de-compressor' which can be
plugged into a CompressionInputStream
to compress data.
This is modelled after Inflater
Method Summary | |
---|---|
int |
decompress(byte[] b,
int off,
int len)
Fills specified buffer with uncompressed data. |
void |
end()
Closes the decompressor and discards any unprocessed input. |
boolean |
finished()
Returns true if the end of the compressed data output stream has been reached. |
boolean |
needsDictionary()
Returns true if a preset dictionary is needed for decompression. |
boolean |
needsInput()
Returns true if the input data buffer is empty and #setInput() should be called to provide more input. |
void |
reset()
Resets decompressor so that a new set of input data can be processed. |
void |
setDictionary(byte[] b,
int off,
int len)
Sets preset dictionary for compression. |
void |
setInput(byte[] b,
int off,
int len)
Sets input data for decompression. |
Method Detail |
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void setInput(byte[] b, int off, int len)
true
indicating that more input data is required.
b
- Input dataoff
- Start offsetlen
- Lengthboolean needsInput()
true
if the input data buffer is empty and
#setInput() should be called in order to provide more input.void setDictionary(byte[] b, int off, int len)
b
- Dictionary data bytesoff
- Start offsetlen
- Lengthboolean needsDictionary()
true
if a preset dictionary is needed for decompression.
true
if a preset dictionary is needed for decompressionboolean finished()
true
if the end of the compressed
data output stream has been reached.int decompress(byte[] b, int off, int len) throws IOException
b
- Buffer for the compressed dataoff
- Start offset of the datalen
- Size of the buffer
IOException
void reset()
void end()
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