Module org.elasticsearch.nativeaccess

Package org.elasticsearch.nativeaccess

Class Zstd

java.lang.Object

org.elasticsearch.nativeaccess.Zstd

public final class Zstd
extends Object

Method Summary

Modifier and Type	Method	Description
int	compress(CloseableByteBuffer dst, CloseableByteBuffer src, int level)	Compress the content of src into dst at compression level level, and return the number of compressed bytes.
int	compressBound(int srcLen)	Return the maximum number of compressed bytes given an input length.
int	decompress(CloseableByteBuffer dst, ByteBuffer src)	Variant of decompress(CloseableByteBuffer, CloseableByteBuffer) that accepts a direct ByteBuffer as the source.
int	decompress(CloseableByteBuffer dst, CloseableByteBuffer src)	Decompress the content of src into dst, and return the number of decompressed bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

compress

public int compress(CloseableByteBuffer dst,
 CloseableByteBuffer src,
 int level)

Compress the content of src into dst at compression level level, and return the number of compressed bytes. Buffer.position() and Buffer.limit() of both ByteBuffers are left unmodified.

decompress

public int decompress(CloseableByteBuffer dst,
 CloseableByteBuffer src)

Decompress the content of src into dst, and return the number of decompressed bytes. Buffer.position() and Buffer.limit() of both ByteBuffers are left unmodified.

decompress

public int decompress(CloseableByteBuffer dst,
 ByteBuffer src)

Variant of decompress(CloseableByteBuffer, CloseableByteBuffer) that accepts a direct ByteBuffer as the source. Use this when the caller already holds a direct buffer (e.g. from DirectAccessInput.withByteBufferSlice) to avoid allocating an intermediate CloseableByteBuffer.

compressBound

public int compressBound(int srcLen)

Return the maximum number of compressed bytes given an input length.