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

Interface Summary

Interface	Description
ConfigurableRocksDBOptionsFactory	An interface for options factory that pick up additional parameters from a configuration.
RocksDBCachingPriorityQueueSet.OrderedByteArraySetCache	Cache that is organized as an ordered set for byte-arrays.
RocksDBOptionsFactory	A factory for DBOptions and ColumnFamilyOptions to be passed to the RocksDBStateBackend.

Class Summary

Class	Description
AbstractRocksDBState<K,N,V>	Base class for State implementations that store state in a RocksDB database.
DefaultConfigurableOptionsFactory	An implementation of ConfigurableRocksDBOptionsFactory using options provided by RocksDBConfigurableOptions.
RocksDBCachingPriorityQueueSet<E extends HeapPriorityQueueElement>	A priority queue with set semantics, implemented on top of RocksDB.
RocksDBConfigurableOptions	This class contains the configuration options for the DefaultConfigurableOptionsFactory.
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.RocksDbKvStateInfo	Rocks DB specific information about the k/v states.
RocksDBKeyedStateBackendBuilder<K>	Builder class for RocksDBKeyedStateBackend which handles all necessary initializations and clean ups.
RocksDBKeySerializationUtils	Utils for RocksDB state serialization and deserialization.
RocksDBMemoryConfiguration	The settings regarding RocksDBs memory usage.
RocksDBMemoryControllerUtils	Utils to create Cache and WriteBufferManager which are used to control total memory usage of RocksDB.
RocksDBNativeMetricMonitor	A monitor which pulls {RocksDB} native metrics and forwards them to Flink's metric group.
RocksDBNativeMetricOptions	Enable which RocksDB metrics to forward to Flink's metrics reporter.
RocksDBOperationUtils	Utils for RocksDB Operations.
RocksDBOptions	Configuration options for the RocksDB backend.
RocksDBPriorityQueueSetFactory	Encapsulates the logic and resources in connection with creating priority queue state structures, for RocksDB backend.
RocksDBResourceContainer	The container for RocksDB resources, including predefined options, option factory and shared resource among instances.
RocksDBStateBackend	A State Backend that stores its state in RocksDB.
RocksDBStateBackendFactory	A factory that creates an RocksDBStateBackend from a configuration.
RocksDBStateDownloader	Help class for downloading RocksDB state files.
RocksDBStateUploader	Help class for uploading RocksDB state files.
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.
RocksDBProperty	RocksDB properties that can be queried by Flink's metrics reporter.
RocksDBStateBackend.PriorityQueueStateType	The options to chose for the type of priority queue state.