code: public void setCompressor(String type, String compressionType) {
          mStorableCodecFactory = null;
          compressionType = compressionType.toUpperCase();
          if (mCompressionMap == null) {
              mCompressionMap = new HashMap<String, CompressionType>();
          }
          CompressionType compressionEnum = CompressionType.valueOf(compressionType);
          if (compressionEnum != null) {
              mCompressionMap.put(type, compressionEnum);
          }
      }
docs: Set the compressor for the given class, overriding a custom StorableCodecFactory.
  
  @param type Storable to compress.
  @param compressionType String representation of type of
  compression. Available options are "NONE" for no compression or "GZIP"
  for gzip compression