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

java.lang.Object
  org.apache.hadoop.hdfs.server.datanode.CachingStrategy

public class CachingStrategy
extends Object

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

Nested Class Summary

static class

CachingStrategy.Builder

Constructor Summary

CachingStrategy(Boolean dropBehind, Long readahead)

Method Summary

Boolean	getDropBehind()
Long	getReadahead()
static CachingStrategy	newDefaultStrategy()
static CachingStrategy	newDropBehind()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingStrategy

public CachingStrategy(Boolean dropBehind,
                       Long readahead)

Method Detail

newDefaultStrategy

public static CachingStrategy newDefaultStrategy()

newDropBehind

public static CachingStrategy newDropBehind()

getDropBehind

public Boolean getDropBehind()

getReadahead

public Long getReadahead()

toString

public String toString()

Overrides:

toString in class Object