org.apache.flink.runtime.state.filesystem

Class FsCompletedCheckpointStorageLocation

java.lang.Object

org.apache.flink.runtime.state.filesystem.FsCompletedCheckpointStorageLocation

All Implemented Interfaces:

Serializable, CompletedCheckpointStorageLocation

public class FsCompletedCheckpointStorageLocation
extends Object
implements CompletedCheckpointStorageLocation

A CompletedCheckpointStorageLocation that resides on a file system. This location is internally represented through the checkpoint directory plus the metadata file.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FsCompletedCheckpointStorageLocation(FileSystem fs, Path exclusiveCheckpointDir, FileStateHandle metadataFileHandle, String externalPointer)

Method Summary

Modifier and Type	Method and Description
void	disposeStorageLocation() Disposes the storage location.
Path	getExclusiveCheckpointDir()
String	getExternalPointer() Gets the external pointer to the checkpoint.
FileStateHandle	getMetadataHandle() Gets the state handle to the checkpoint's metadata.

Methods inherited from class java.lang.Object

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

Constructor Detail

FsCompletedCheckpointStorageLocation

public FsCompletedCheckpointStorageLocation(FileSystem fs,
                                            Path exclusiveCheckpointDir,
                                            FileStateHandle metadataFileHandle,
                                            String externalPointer)

Method Detail

getExternalPointer

public String getExternalPointer()

Description copied from interface: CompletedCheckpointStorageLocation

Gets the external pointer to the checkpoint. The pointer can be used to resume a program from the savepoint or checkpoint, and is typically passed as a command line argument, an HTTP request parameter, or stored in a system like ZooKeeper.

Specified by:

getExternalPointer in interface CompletedCheckpointStorageLocation

getExclusiveCheckpointDir

public Path getExclusiveCheckpointDir()

getMetadataHandle

public FileStateHandle getMetadataHandle()

Description copied from interface: CompletedCheckpointStorageLocation

Gets the state handle to the checkpoint's metadata.

Specified by:

getMetadataHandle in interface CompletedCheckpointStorageLocation

disposeStorageLocation

public void disposeStorageLocation()
                            throws IOException

Description copied from interface: CompletedCheckpointStorageLocation

Disposes the storage location. This method should be called after all state objects have been released. It typically disposes the base structure of the checkpoint storage, like the checkpoint directory.

Specified by:

disposeStorageLocation in interface CompletedCheckpointStorageLocation

Throws:

IOException