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/**
 * An interface that extends user facing {@link KeyedStateBackend} with internal system specific features.
 */
public interface InternalKeyedStateBackend<K> extends
		KeyedStateBackend<K>,
		SnapshotStrategy<SnapshotResult<KeyedStateHandle>>,
		Closeable,
		CheckpointListener {

	KeyGroupRange getKeyGroupRange();

	boolean supportsAsynchronousSnapshots();

	// TODO remove this once heap-based timers are working with RocksDB incremental snapshots!
	boolean requiresLegacySynchronousTimerSnapshots();
}