程序包 com.mysql.cj.protocol.x

类 CompressionAlgorithm

java.lang.Object

com.mysql.cj.protocol.x.CompressionAlgorithm

public class CompressionAlgorithm
extends Object

Contains all information about a compression algorithm, its name, compression mode and classes that implement the inflating and deflating streams of data.

构造器概要

构造器

构造器	说明
CompressionAlgorithm(String name, String inputStreamClassFqn, String outputStreamClassFqn)

方法概要

修饰符和类型	方法	说明
String	getAlgorithmIdentifier()	Gets this algorithm's identifier.
CompressionMode	getCompressionMode()	Gets this algorithm's compression mode.
static Map<String,CompressionAlgorithm>	getDefaultInstances()	Returns a list of the compression algorithms supported natively.
Class<?>	getInputStreamClass()	Gets this algorithm's InputStream implementation class that can be used to inflate data.
static String	getNormalizedAlgorithmName(String name)	Returns the normalized compression algorithm identifier.
Class<?>	getOutputStreamClass()	Gets this algorithm's OutputStream implementation class that can be used to deflate data.

从类继承的方法 java.lang.Object

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

构造器详细资料

CompressionAlgorithm

public CompressionAlgorithm(String name,
                            String inputStreamClassFqn,
                            String outputStreamClassFqn)

方法详细资料

getDefaultInstances

public static Map<String,CompressionAlgorithm> getDefaultInstances()

Returns a list of the compression algorithms supported natively. Additional algorithms can be registered by user.

返回:

a list of the compression algorithms supported natively.

getNormalizedAlgorithmName

public static String getNormalizedAlgorithmName(String name)

Returns the normalized compression algorithm identifier. A normalized identifier is composed by a compression algorithm name followed by '_' and then the the compression operation mode ("stream" vs "message").

参数:

name - the non-normalized compression algorithm identifier.

返回:

if name is an already normalized identifier or an unknown alias then the returned value is the same as the input, otherwise the normalized algorithm identifier is returned.

getAlgorithmIdentifier

public String getAlgorithmIdentifier()

Gets this algorithm's identifier.

返回:

an algorithm identifier.

getCompressionMode

public CompressionMode getCompressionMode()

Gets this algorithm's compression mode.

返回:

an algorithm CompressionMode

getInputStreamClass

public Class<?> getInputStreamClass()

Gets this algorithm's InputStream implementation class that can be used to inflate data.

返回:

an InputStream that knows how to inflate data.

getOutputStreamClass

public Class<?> getOutputStreamClass()

Gets this algorithm's OutputStream implementation class that can be used to deflate data.

返回:

an OutputStream that knows how to deflate data.