org.apache.flink.runtime.state.changelog

Interface StateChangelogStorage<Handle extends ChangelogStateHandle>

All Superinterfaces:

AutoCloseable

All Known Implementing Classes:

InMemoryStateChangelogStorage

@Internal
public interface StateChangelogStorage<Handle extends ChangelogStateHandle>
extends AutoCloseable

A storage for changelog. Could produce StateChangelogHandleReader and StateChangelogWriter for read and write. Please use StateChangelogStorageLoader to obtain an instance.

Method Summary

Modifier and Type	Method and Description
default void	close()
StateChangelogHandleReader<Handle>	createReader()
StateChangelogWriter<Handle>	createWriter(String operatorID, KeyGroupRange keyGroupRange)

Method Detail

createWriter

StateChangelogWriter<Handle> createWriter(String operatorID,
                                          KeyGroupRange keyGroupRange)

createReader

StateChangelogHandleReader<Handle> createReader()

close

default void close()
            throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception