org.apache.flink.runtime.state.changelog

Class LocalChangelogRegistryImpl

java.lang.Object

org.apache.flink.runtime.state.changelog.LocalChangelogRegistryImpl

All Implemented Interfaces:

Closeable, AutoCloseable, LocalChangelogRegistry

@Internal
public class LocalChangelogRegistryImpl
extends Object
implements LocalChangelogRegistry

Field Summary

Fields inherited from interface org.apache.flink.runtime.state.changelog.LocalChangelogRegistry

NO_OP

Constructor Summary

Constructors

Constructor and Description
LocalChangelogRegistryImpl(ExecutorService ioExecutor)

Method Summary

Modifier and Type	Method and Description
void	close()
void	discardUpToCheckpoint(long upTo) Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete and ChangelogKeyedStateBackend#notifyCheckpointSubsumed.
void	register(StreamStateHandle handle, long checkpointID) Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalChangelogRegistryImpl

public LocalChangelogRegistryImpl(ExecutorService ioExecutor)

Method Detail

register

public void register(StreamStateHandle handle,
                     long checkpointID)

Description copied from interface: LocalChangelogRegistry

Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete.

Specified by:

register in interface LocalChangelogRegistry

Parameters:

handle - handle to register.

checkpointID - latest used checkpointID.

discardUpToCheckpoint

public void discardUpToCheckpoint(long upTo)

Description copied from interface: LocalChangelogRegistry

Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete and ChangelogKeyedStateBackend#notifyCheckpointSubsumed. Remote dstl handles are unregistered when CompletedCheckpointStore.addCheckpointAndSubsumeOldestOne(org.apache.flink.runtime.checkpoint.CompletedCheckpoint, org.apache.flink.runtime.checkpoint.CheckpointsCleaner, java.lang.Runnable), local dtsl handles are unregistered when the checkpoint completes, because only one checkpoint is kept for local recovery.

Specified by:

discardUpToCheckpoint in interface LocalChangelogRegistry

Parameters:

upTo - lowest CheckpointID which is still valid.

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException