ZLibEncoder class

The ZLibEncoder encoder is used by ZLibCodec and GZipCodec to compress data.

The ZLibEncoder encoder is used by ZLibCodec and GZipCodec to compress data.

Extends:

Constructors

ZLibEncoder ( {bool gzip: false, int level: ZLibOption.DEFAULT_LEVEL, int windowBits: ZLibOption.DEFAULT_WINDOW_BITS, int memLevel: ZLibOption.DEFAULT_MEM_LEVEL, int strategy: ZLibOption.STRATEGY_DEFAULT, List<int> dictionary: null, bool raw: false} )

Instance Properties

gzip bool
read-only
When true, GZip frames will be added to the compressed data.
level int
read-only
The compression-level can be set in the range of -1..9, with 6 being the default compression level. Levels above 6 will have higher compression rates at the cost of more CPU and memory usage. Levels...
memLevel int
read-only
Specifies how much memory should be allocated for the internal compression state. 1 uses minimum memory but is slow and reduces compression ratio; 9 uses maximum memory for optimal speed. The default ...
strategy int
read-only
Tunes the compression algorithm. Use the value ZLibOption.STRATEGY_DEFAULT for normal data, ZLibOption.STRATEGY_FILTERED for data produced by a filter (or predictor), [ZLibOption.STRATEGY_HUFFMAN_...
windowBits int
read-only
Base two logarithm of the window size (the size of the history buffer). It should be in the range 8..15. Larger values result in better compression at the expense of memory usage. The default value is...
dictionary List<int>
read-only
Initial compression dictionary.
raw bool
read-only
When true, deflate generates raw data with no zlib header or trailer, and will not compute an adler32 check value

Instance Methods

convert ( List<int> bytes ) → List<int>
Convert a list of bytes using the options given to the ZLibEncoder constructor.
startChunkedConversion ( Sink<List<int>> sink ) → ByteConversionSink
Start a chunked conversion using the options given to the ZLibEncoder constructor. While it accepts any Sink taking List's, the optimal sink to be passed as sink is a ByteConversionSink...
fuse Inherited ( Converter<List<int>> other ) → Converter<List<int>>
Fuses this with other.
bind Inherited ( Stream stream ) → Stream
Transform the incoming [stream]'s events.
fuse Inherited ( Converter<List<int>> other ) → Converter<List<int>>
Fuses this with other.