org.apache.hadoop.hbase.regionserver

Class FlushPolicy

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.hbase.regionserver.FlushPolicy

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable

Direct Known Subclasses:

FlushAllStoresPolicy, FlushLargeStoresPolicy

@InterfaceAudience.Private
public abstract class FlushPolicy
extends org.apache.hadoop.conf.Configured

A flush policy determines the stores that need to be flushed when flushing a region.

Field Summary

Fields

Modifier and Type	Field and Description
protected HRegion	region The region configured for this flush policy.

Constructor Summary

Constructors

Constructor and Description
FlushPolicy()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	configureForRegion(HRegion region) Upon construction, this method will be called with the region to be governed.
abstract Collection<Store>	selectStoresToFlush()

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Field Detail

region

protected HRegion region

The region configured for this flush policy.

Constructor Detail

FlushPolicy

public FlushPolicy()

Method Detail

configureForRegion

protected void configureForRegion(HRegion region)

Upon construction, this method will be called with the region to be governed. It will be called once and only once.

selectStoresToFlush

public abstract Collection<Store> selectStoresToFlush()

Returns:

the stores need to be flushed.