# Package org.apache.sysds.runtime.compress

- Class Summary
  Class | Description
  --- | ---
  CompressedMatrixBlock |
  CompressedMatrixBlockFactory | Factory pattern to compress a Matrix Block into a CompressedMatrixBlock.
  CompressionSettings | Compression Settings class, used as a bundle of parameters inside the Compression framework.
  CompressionSettingsBuilder | Builder pattern for Compression Settings.
  CompressionStatistics | Compression Statistics contain the main information gathered from the compression, such as sizes of the original matrix, vs the compressed representation at different stages of the compression.
  SingletonLookupHashMap | This class allows sharing of objects across the entire program.

- Exception Summary
  Exception | Description
  --- | ---
  DMLCompressionException |