org.apache.flink.runtime.checkpoint

Class SavepointStore

java.lang.Object

org.apache.flink.runtime.checkpoint.SavepointStore

All Implemented Interfaces:

StateStore<CompletedCheckpoint>

public class SavepointStore
extends Object
implements StateStore<CompletedCheckpoint>

Simple wrapper around the state store for savepoints.

Constructor Summary

Constructors

Constructor and Description
SavepointStore(StateStore<CompletedCheckpoint> stateStore)

Method Summary

Modifier and Type	Method and Description
void	disposeState(String path) Disposes the state identified by the given (logical) path.
CompletedCheckpoint	getState(String path) Returns the object identified by the given (logical) path.
String	putState(CompletedCheckpoint state) Puts an object into the store and returns the (logical) path to it.
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

SavepointStore

public SavepointStore(StateStore<CompletedCheckpoint> stateStore)

Method Detail

start

public void start()

stop

public void stop()

putState

public String putState(CompletedCheckpoint state)
                throws Exception

Description copied from interface: StateStore

Puts an object into the store and returns the (logical) path to it.

The stored state can be retrieved or discarded by specifying the returned path.

Specified by:

putState in interface StateStore<CompletedCheckpoint>

Parameters:

state - The object to store.

Returns:

The path to retrieve or discard the object again.

Throws:

Exception

getState

public CompletedCheckpoint getState(String path)
                             throws Exception

Description copied from interface: StateStore

Returns the object identified by the given (logical) path.

Specified by:

getState in interface StateStore<CompletedCheckpoint>

Parameters:

path - The path of the object to retrieve.

Returns:

The object stored under the specified path.

Throws:

IllegalArgumentException - If the path does not identify a valid object.

Exception

disposeState

public void disposeState(String path)
                  throws Exception

Description copied from interface: StateStore

Disposes the state identified by the given (logical) path.

Specified by:

disposeState in interface StateStore<CompletedCheckpoint>

Parameters:

path - The path of the object to discard.

Throws:

IllegalArgumentException - If the path does not identify a valid object.

Exception