Uses of Interface
org.apache.hadoop.hdfs.server.namenode.ha.HAContext

Packages that use HAContext

Package	Description
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.namenode.ha

Uses of HAContext in org.apache.hadoop.hdfs.server.namenode

Classes in org.apache.hadoop.hdfs.server.namenode that implement HAContext

Modifier and Type	Class	Description
protected class	NameNode.NameNodeHAContext	Class used to expose NameNode as context to HAState

Methods in org.apache.hadoop.hdfs.server.namenode that return HAContext

Modifier and Type	Method	Description
protected HAContext	NameNode.createHAContext()
HAContext	FSNamesystem.getHAContext()
HAContext	Namesystem.getHAContext()

Methods in org.apache.hadoop.hdfs.server.namenode with parameters of type HAContext

Modifier and Type	Method	Description
void	BackupState.checkOperation(HAContext context, NameNode.OperationCategory op)
void	BackupState.enterState(HAContext context)
void	BackupState.exitState(HAContext context)
void	BackupState.prepareToExitState(HAContext context)

Uses of HAContext in org.apache.hadoop.hdfs.server.namenode.ha

Methods in org.apache.hadoop.hdfs.server.namenode.ha with parameters of type HAContext

Modifier and Type	Method	Description
void	ActiveState.checkOperation(HAContext context, NameNode.OperationCategory op)
abstract void	HAState.checkOperation(HAContext context, NameNode.OperationCategory op)	Check if an operation is supported in a given state.
void	StandbyState.checkOperation(HAContext context, NameNode.OperationCategory op)
void	ActiveState.enterState(HAContext context)
abstract void	HAState.enterState(HAContext context)	Method to be overridden by subclasses to perform steps necessary for entering a state.
void	StandbyState.enterState(HAContext context)
void	ActiveState.exitState(HAContext context)
abstract void	HAState.exitState(HAContext context)	Method to be overridden by subclasses to perform steps necessary for exiting a state.
void	StandbyState.exitState(HAContext context)
void	HAState.prepareToEnterState(HAContext context)	Method to be overridden by subclasses to prepare to enter a state.
void	HAState.prepareToExitState(HAContext context)	Method to be overridden by subclasses to prepare to exit a state.
void	StandbyState.prepareToExitState(HAContext context)
void	ActiveState.setState(HAContext context, HAState s)
void	HAState.setState(HAContext context, HAState s)	Move from the existing state to a new state
void	StandbyState.setState(HAContext context, HAState s)
protected final void	HAState.setStateInternal(HAContext context, HAState s)	Internal method to move from the existing state to a new state.