Package org.apache.avro.file

Class ZstandardCodec

java.lang.Object

org.apache.avro.file.Codec

org.apache.avro.file.ZstandardCodec

public class ZstandardCodec
extends Codec

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_COMPRESSION
static final boolean	DEFAULT_USE_BUFFERPOOL

Constructor Summary

Constructors

Constructor	Description
ZstandardCodec(int compressionLevel, boolean useChecksum, boolean useBufferPool)	Create a ZstandardCodec instance with the given compressionLevel, checksum, and bufferPool option

Method Summary

Modifier and Type	Method	Description
ByteBuffer	compress(ByteBuffer data)	Compresses the input data
ByteBuffer	decompress(ByteBuffer compressedData)	Decompress the data
boolean	equals(Object obj)	Codecs must implement an equals() method.
String	getName()	Name of the codec; written to the file's metadata.
int	hashCode()	Codecs must implement a hashCode() method that is consistent with equals().
String	toString()

Methods inherited from class org.apache.avro.file.Codec

computeOffset

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

DEFAULT_COMPRESSION

public static final int DEFAULT_COMPRESSION

See Also:

• Constant Field Values

DEFAULT_USE_BUFFERPOOL

public static final boolean DEFAULT_USE_BUFFERPOOL

See Also:

• Constant Field Values

Constructor Details

ZstandardCodec

public ZstandardCodec(int compressionLevel,
 boolean useChecksum,
 boolean useBufferPool)

Create a ZstandardCodec instance with the given compressionLevel, checksum, and bufferPool option

Method Details

getName

public String getName()

Description copied from class: Codec

Name of the codec; written to the file's metadata.

Specified by:

getName in class Codec

compress

public ByteBuffer compress(ByteBuffer data)
                    throws IOException

Description copied from class: Codec

Compresses the input data

Specified by:

compress in class Codec

Throws:

IOException

decompress

public ByteBuffer decompress(ByteBuffer compressedData)
                      throws IOException

Description copied from class: Codec

Decompress the data

Specified by:

decompress in class Codec

Throws:

IOException

hashCode

public int hashCode()

Description copied from class: Codec

Codecs must implement a hashCode() method that is consistent with equals().

Specified by:

hashCode in class Codec

equals

public boolean equals(Object obj)

Description copied from class: Codec

Codecs must implement an equals() method. Two codecs, A and B are equal if: the result of A and B decompressing content compressed by A is the same AND the result of A and B decompressing content compressed by B is the same

Specified by:

equals in class Codec

toString

public String toString()

Overrides:

toString in class Codec