@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface Compressor
CompressionOutputStream to compress data.
 This is modelled after Deflater| Modifier and Type | Method and Description | 
|---|---|
| int | compress(byte[] b,
        int off,
        int len)Fills specified buffer with compressed data. | 
| void | end()Closes the compressor and discards any unprocessed input. | 
| void | finish()When called, indicates that compression should end
 with the current contents of the input buffer. | 
| boolean | finished()Returns true if the end of the compressed 
 data output stream has been reached. | 
| long | getBytesRead()Return number of uncompressed bytes input so far. | 
| long | getBytesWritten()Return number of compressed bytes output so far. | 
| boolean | needsInput()Returns true if the input data buffer is empty and 
 #setInput() should be called to provide more input. | 
| void | reinit(Configuration conf)Prepare the compressor to be used in a new stream with settings defined in
 the given Configuration | 
| void | reset()Resets compressor 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 compression. | 
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 - Lengthlong getBytesRead()
long getBytesWritten()
void finish()
boolean finished()
true if the end of the compressed
 data output stream has been reached.int compress(byte[] b,
             int off,
             int len)
      throws IOException
b - Buffer for the compressed dataoff - Start offset of the datalen - Size of the bufferIOException - raised on errors performing I/O.void reset()
void end()
void reinit(Configuration conf)
conf - Configuration from which new setting are fetchedCopyright © 2023 Apache Software Foundation. All rights reserved.