org.apache.cassandra.io.compress

Interface ICompressor

All Known Implementing Classes:

DeflateCompressor, LZ4Compressor, SnappyCompressor

public interface ICompressor

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	ICompressor.WrappedByteBuffer A simple wrapped Bytebuffer.

Method Summary

Modifier and Type	Method and Description
int	compress(java.nio.ByteBuffer input, ICompressor.WrappedByteBuffer output) Compression for ByteBuffers
int	initialCompressedBufferLength(int chunkLength)
java.util.Set<java.lang.String>	supportedOptions()
int	uncompress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset)
int	uncompress(java.nio.ByteBuffer input, java.nio.ByteBuffer output) Decompression for DirectByteBuffers
boolean	useDirectOutputByteBuffers() Notifies user if this compressor will wants/requires a direct byte buffers to decompress direct byteBuffers

Method Detail

initialCompressedBufferLength

int initialCompressedBufferLength(int chunkLength)

uncompress

int uncompress(byte[] input,
               int inputOffset,
               int inputLength,
               byte[] output,
               int outputOffset)
        throws java.io.IOException

Throws:

java.io.IOException

compress

int compress(java.nio.ByteBuffer input,
             ICompressor.WrappedByteBuffer output)
      throws java.io.IOException

Compression for ByteBuffers

Throws:

java.io.IOException

uncompress

int uncompress(java.nio.ByteBuffer input,
               java.nio.ByteBuffer output)
        throws java.io.IOException

Decompression for DirectByteBuffers

Throws:

java.io.IOException

useDirectOutputByteBuffers

boolean useDirectOutputByteBuffers()

Notifies user if this compressor will wants/requires a direct byte buffers to decompress direct byteBuffers

supportedOptions

java.util.Set<java.lang.String> supportedOptions()