Package | Description |
---|---|
org.apache.flink.contrib.streaming.state | |
org.apache.flink.contrib.streaming.state.snapshot | |
org.apache.flink.runtime.state | |
org.apache.flink.runtime.state.heap |
This package contains the classes for key/value state backends that store the state
on the JVM heap as objects.
|
Modifier and Type | Class and Description |
---|---|
class |
RocksDBKeyedStateBackend<K>
An
AbstractKeyedStateBackend that stores its state in RocksDB and serializes state to
streams provided by a CheckpointStreamFactory upon
checkpointing. |
Modifier and Type | Class and Description |
---|---|
class |
RocksDBSnapshotStrategyBase<K>
Abstract base class for
SnapshotStrategy implementations for RocksDB state backend. |
class |
RocksFullSnapshotStrategy<K>
Snapshot strategy to create full snapshots of
RocksDBKeyedStateBackend . |
class |
RocksIncrementalSnapshotStrategy<K>
Snapshot strategy for
RocksDBKeyedStateBackend that is based
on RocksDB's native checkpoints and creates incremental snapshots. |
Modifier and Type | Interface and Description |
---|---|
interface |
OperatorStateBackend
Interface that combines both, the user facing
OperatorStateStore interface and the system interface
Snapshotable |
interface |
Snapshotable<S extends StateObject,R>
Interface for operators that can perform snapshots of their state.
|
Modifier and Type | Class and Description |
---|---|
class |
AbstractKeyedStateBackend<K>
Base implementation of KeyedStateBackend.
|
class |
AbstractSnapshotStrategy<T extends StateObject>
Abstract base class for implementing
SnapshotStrategy , that gives a consistent logging across state backends. |
class |
DefaultOperatorStateBackend
Default implementation of OperatorStateStore that provides the ability to make snapshots.
|
Modifier and Type | Class and Description |
---|---|
class |
HeapKeyedStateBackend<K>
A
AbstractKeyedStateBackend that keeps state on the Java Heap and will serialize state to
streams provided by a CheckpointStreamFactory upon checkpointing. |
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