Package org.apache.flink.contrib.streaming.state

Interface Summary

Interface	Description
OptionsFactory	A factory for DBOptions and ColumnFamilyOptions to be passed to the RocksDBStateBackend.
RocksDBCachingPriorityQueueSet.OrderedByteArraySetCache	Cache that is organized as an ordered set for byte-arrays.

Class Summary

Class	Description
AbstractRocksDBState<K,N,V,S extends org.apache.flink.api.common.state.State>	Base class for State implementations that store state in a RocksDB database.
RocksDBCachingPriorityQueueSet<E extends org.apache.flink.runtime.state.heap.HeapPriorityQueueElement>	A priority queue with set semantics, implemented on top of RocksDB.
RocksDBIncrementalCheckpointUtils	Utils for RocksDB Incremental Checkpoint.
RocksDBKeyedStateBackend<K>	An AbstractKeyedStateBackend that stores its state in RocksDB and serializes state to streams provided by a CheckpointStreamFactory upon checkpointing.
RocksDBKeyedStateBackend.MergeIterator	Wraps a RocksDB iterator to cache it's current key and assigns an id for the key/value state to the iterator.
RocksDBOptions	Configuration options for the RocksDB backend.
RocksDBStateBackend	A State Backend that stores its state in RocksDB.
RocksDBStateBackendFactory	A factory that creates an RocksDBStateBackend from a configuration.
RocksDBWriteBatchWrapper	It's a wrapper class around RocksDB's WriteBatch for writing in bulk.
RocksIteratorWrapper	This is a wrapper around RocksIterator to check the iterator status for all the methods mentioned to require this check in the wiki documentation: seek, next, seekToFirst, seekToLast, seekForPrev, and prev.
TreeOrderedSetCache	Implementation of a lexicographically ordered set of byte-arrays, based on a TreeSet.

Enum Summary

Enum	Description
PredefinedOptions	The PredefinedOptions are configuration settings for the RocksDBStateBackend.
RocksDBStateBackend.PriorityQueueStateType	The options to chose for the type of priority queue state.