Package org.apache.hadoop.hbase.master.balancer

Class BalanceAction

java.lang.Object

org.apache.hadoop.hbase.master.balancer.BalanceAction

Direct Known Subclasses:

AssignRegionAction, BalanceAction.NullBalanceAction, MoveBatchAction, MoveRegionAction, SwapRegionsAction

@Private
abstract class BalanceAction
extends Object

An action to move or swap a region

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	BalanceAction.NullBalanceAction
(package private) static enum	BalanceAction.Type

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final BalanceAction	NULL_ACTION
private final BalanceAction.Type	type

Constructor Summary

Constructors

Constructor	Description
BalanceAction(BalanceAction.Type type)

Method Summary

Modifier and Type	Method	Description
(package private) long	getStepCount()
(package private) BalanceAction.Type	getType()
(package private) abstract List<RegionPlan>	toRegionPlans(BalancerClusterState cluster)	Returns the Action represented as RegionPlans
String	toString()
(package private) abstract BalanceAction	undoAction()	Returns an Action which would undo this action

Methods inherited from class java.lang.Object

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

Field Details

NULL_ACTION

static final BalanceAction NULL_ACTION

type

private final BalanceAction.Type type

Constructor Details

BalanceAction

BalanceAction(BalanceAction.Type type)

Method Details

undoAction

abstract BalanceAction undoAction()

Returns an Action which would undo this action

toRegionPlans

abstract List<RegionPlan> toRegionPlans(BalancerClusterState cluster)

Returns the Action represented as RegionPlans

getType

BalanceAction.Type getType()

getStepCount

long getStepCount()

toString

public String toString()

Overrides:

toString in class Object