Package org.apache.hadoop.hdfs.server.datanode

Class CachingStrategy

java.lang.Object

org.apache.hadoop.hdfs.server.datanode.CachingStrategy

public class CachingStrategy
extends java.lang.Object

The caching strategy we should use for an HDFS read or write operation.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CachingStrategy.Builder

Constructor Summary

Constructors

Constructor	Description
CachingStrategy(java.lang.Boolean dropBehind, java.lang.Long readahead)

Method Summary

Modifier and Type	Method	Description
java.lang.Boolean	getDropBehind()
java.lang.Long	getReadahead()
static CachingStrategy	newDefaultStrategy()
static CachingStrategy	newDropBehind()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingStrategy

public CachingStrategy(java.lang.Boolean dropBehind,
                       java.lang.Long readahead)

Method Detail

newDefaultStrategy

public static CachingStrategy newDefaultStrategy()

newDropBehind

public static CachingStrategy newDropBehind()

getDropBehind

public java.lang.Boolean getDropBehind()

getReadahead

public java.lang.Long getReadahead()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object