org.apache.hadoop.hbase.regionserver.wal

Class CompressionContext

java.lang.Object

org.apache.hadoop.hbase.regionserver.wal.CompressionContext

@InterfaceAudience.LimitedPrivate(value={"Coprocesssor","Phoenix"})
public class CompressionContext
extends Object

Context that holds the various dictionaries for compression in WAL.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompressionContext.DictionaryIndex

Field Summary

Fields

Modifier and Type	Field and Description
private Map<CompressionContext.DictionaryIndex,Dictionary>	dictionaries
(package private) static String	ENABLE_WAL_TAGS_COMPRESSION
(package private) TagCompressionContext	tagCompressionContext

Constructor Summary

Constructors

Constructor and Description
CompressionContext(Class<? extends Dictionary> dictType, boolean recoveredEdits, boolean hasTagCompression)

Method Summary

Modifier and Type	Method and Description
(package private) void	clear()
Dictionary	getDictionary(Enum dictIndex)

Methods inherited from class java.lang.Object

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

Field Detail

ENABLE_WAL_TAGS_COMPRESSION

static final String ENABLE_WAL_TAGS_COMPRESSION

See Also:

Constant Field Values

dictionaries

private final Map<CompressionContext.DictionaryIndex,Dictionary> dictionaries

tagCompressionContext

TagCompressionContext tagCompressionContext

Constructor Detail

CompressionContext

public CompressionContext(Class<? extends Dictionary> dictType,
                          boolean recoveredEdits,
                          boolean hasTagCompression)
                   throws SecurityException,
                          NoSuchMethodException,
                          InstantiationException,
                          IllegalAccessException,
                          InvocationTargetException

Throws:

SecurityException

NoSuchMethodException

InstantiationException

IllegalAccessException

InvocationTargetException

Method Detail

getDictionary

public Dictionary getDictionary(Enum dictIndex)

clear

void clear()