org.apache.hadoop.hbase.io.hfile

Class CacheableDeserializerIdManager

java.lang.Object

org.apache.hadoop.hbase.io.hfile.CacheableDeserializerIdManager

@InterfaceAudience.Private
public class CacheableDeserializerIdManager
extends Object

This class is used to manage the identifiers for CacheableDeserializer

Field Summary

Fields

Modifier and Type	Field and Description
private static AtomicInteger	identifier
private static Map<Integer,CacheableDeserializer<Cacheable>>	registeredDeserializers

Constructor Summary

Constructors

Constructor and Description
CacheableDeserializerIdManager()

Method Summary

Modifier and Type	Method and Description
static CacheableDeserializer<Cacheable>	getDeserializer(int id) Get the cacheable deserializer as the given identifier Id
static int	registerDeserializer(CacheableDeserializer<Cacheable> cd) Register the given Cacheable -- usually an hfileblock instance, these implement the Cacheable Interface -- deserializer and generate a unique identifier id for it and return this as our result.

Methods inherited from class java.lang.Object

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

Field Detail

registeredDeserializers

private static final Map<Integer,CacheableDeserializer<Cacheable>> registeredDeserializers

identifier

private static final AtomicInteger identifier

Constructor Detail

CacheableDeserializerIdManager

public CacheableDeserializerIdManager()

Method Detail

registerDeserializer

public static int registerDeserializer(CacheableDeserializer<Cacheable> cd)

Register the given Cacheable -- usually an hfileblock instance, these implement the Cacheable Interface -- deserializer and generate a unique identifier id for it and return this as our result.

Returns:

the identifier of given cacheable deserializer

getDeserializer

public static CacheableDeserializer<Cacheable> getDeserializer(int id)

Get the cacheable deserializer as the given identifier Id

Parameters:

id -

Returns:

CacheableDeserializer