Package org.apache.arrow.vector.compression

Class NoCompressionCodec

java.lang.Object

org.apache.arrow.vector.compression.NoCompressionCodec

All Implemented Interfaces:

CompressionCodec

public class NoCompressionCodec
extends Object
implements CompressionCodec

The default compression codec that does no compression.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	NoCompressionCodec.Factory	The default factory that creates a NoCompressionCodec.

Field Summary

Fields

Modifier and Type	Field	Description
static final byte	COMPRESSION_TYPE
static final ArrowBodyCompression	DEFAULT_BODY_COMPRESSION
static final NoCompressionCodec	INSTANCE

Method Summary

Modifier and Type	Method	Description
ArrowBuf	compress(BufferAllocator allocator, ArrowBuf uncompressedBuffer)	Compress a buffer.
ArrowBuf	decompress(BufferAllocator allocator, ArrowBuf compressedBuffer)	Decompress a buffer.
CompressionUtil.CodecType	getCodecType()	Gets the type of the codec.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final NoCompressionCodec INSTANCE

COMPRESSION_TYPE

public static final byte COMPRESSION_TYPE

See Also:

• Constant Field Values

DEFAULT_BODY_COMPRESSION

public static final ArrowBodyCompression DEFAULT_BODY_COMPRESSION

Method Details

compress

public ArrowBuf compress(BufferAllocator allocator,
 ArrowBuf uncompressedBuffer)

Description copied from interface: CompressionCodec

Compress a buffer.

Specified by:

compress in interface CompressionCodec

Parameters:

allocator - the allocator for allocating memory for compressed buffer.

uncompressedBuffer - the buffer to compress. Implementation of this method should take care of releasing this buffer.

Returns:

the compressed buffer

decompress

public ArrowBuf decompress(BufferAllocator allocator,
 ArrowBuf compressedBuffer)

Description copied from interface: CompressionCodec

Decompress a buffer.

Specified by:

decompress in interface CompressionCodec

Parameters:

allocator - the allocator for allocating memory for decompressed buffer.

compressedBuffer - the buffer to be decompressed. Implementation of this method should take care of releasing this buffer.

Returns:

the decompressed buffer.

getCodecType

public CompressionUtil.CodecType getCodecType()

Description copied from interface: CompressionCodec

Gets the type of the codec.

Specified by:

getCodecType in interface CompressionCodec

Returns:

the type of the codec.