iaik.cms
Interface InputStreamCompressEngine

public interface InputStreamCompressEngine

Generic compression engine for compressing/decompressing data that is supplied by an input stream. Used by class CompressedDataStream for content compression/decompression.

An application that implements its own InputStreamCompressEngine has to override the following SecurityProvider method to plug-in its own implementation:

• getInputStreamCompressEngine(AlgorithmID compressAlg, InputStream contentIs, int compressionMode, int bufferSize)

See Also:

SecurityProvider

Field Summary

static int	COMPRESS Constant for a compress engine to be initialized for compression.
static int	DECOMPRESS Constant for a compress engine to be initialized for decompression.

Method Summary

java.io.InputStream

getInputStream() Gets an input stream that compresses/decompresses all data that is read from the underlying input stream.

Field Detail

COMPRESS

static final int COMPRESS

Constant for a compress engine to be initialized for compression.

See Also:

Constant Field Values

DECOMPRESS

static final int DECOMPRESS

Constant for a compress engine to be initialized for decompression.

See Also:

Constant Field Values

Method Detail

getInputStream

java.io.InputStream getInputStream()

Gets an input stream that compresses/decompresses all data that is read from the underlying input stream. The stream shall not be read by this method. This method shall only wrap a stream around the given stream. Any data that later is read from the wrapped (and thus underlying) stream is compressed/decompressed.

Returns:

the compressesing/decompressing stream