Interface Compressor

All Known Implementing Classes:
CompressDeflate, CompressLZF, CompressNo

public interface Compressor
Each data compression algorithm must implement this interface.
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    The DEFLATE compression algorithm is used.
    static final int
    The LZF compression algorithm is used
    static final int
    No compression is used.
  • Method Summary

    Modifier and Type
    Method
    Description
    int
    compress(byte[] in, int inPos, int inLen, byte[] out, int outPos)
    Compress a number of bytes.
    void
    expand(byte[] in, int inPos, int inLen, byte[] out, int outPos, int outLen)
    Expand a number of compressed bytes.
    int
    Get the compression algorithm type.
    void
    setOptions(String options)
    Set the compression options.
  • Field Details

  • Method Details

    • getAlgorithm

      int getAlgorithm()
      Get the compression algorithm type.
      Returns:
      the type
    • compress

      int compress(byte[] in, int inPos, int inLen, byte[] out, int outPos)
      Compress a number of bytes.
      Parameters:
      in - the input data
      inPos - the offset at the input array
      inLen - the number of bytes to compress
      out - the output area
      outPos - the offset at the output array
      Returns:
      the end position
    • expand

      void expand(byte[] in, int inPos, int inLen, byte[] out, int outPos, int outLen)
      Expand a number of compressed bytes.
      Parameters:
      in - the compressed data
      inPos - the offset at the input array
      inLen - the number of bytes to read
      out - the output area
      outPos - the offset at the output array
      outLen - the size of the uncompressed data
    • setOptions

      void setOptions(String options)
      Set the compression options. This may include settings for higher performance but less compression.
      Parameters:
      options - the options