org.apache.flink.runtime.state

Class DefaultOperatorStateBackendBuilder

java.lang.Object

org.apache.flink.runtime.state.DefaultOperatorStateBackendBuilder

All Implemented Interfaces:

StateBackendBuilder<DefaultOperatorStateBackend,BackendBuildingException>

public class DefaultOperatorStateBackendBuilder
extends Object
implements StateBackendBuilder<DefaultOperatorStateBackend,BackendBuildingException>

Builder class for DefaultOperatorStateBackend which handles all necessary initializations and clean ups.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	asynchronousSnapshots Flag to de/activate asynchronous snapshots.
protected org.apache.flink.core.fs.CloseableRegistry	cancelStreamRegistry
protected org.apache.flink.api.common.ExecutionConfig	executionConfig The execution configuration.
protected Collection<OperatorStateHandle>	restoreStateHandles State handles for restore.
protected ClassLoader	userClassloader The user code classloader.

Constructor Summary

Constructors

Constructor and Description
DefaultOperatorStateBackendBuilder(ClassLoader userClassloader, org.apache.flink.api.common.ExecutionConfig executionConfig, boolean asynchronousSnapshots, Collection<OperatorStateHandle> stateHandles, org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry)

Method Summary

Modifier and Type	Method and Description
DefaultOperatorStateBackend	build()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

userClassloader

@VisibleForTesting
protected final ClassLoader userClassloader

The user code classloader.

executionConfig

@VisibleForTesting
protected final org.apache.flink.api.common.ExecutionConfig executionConfig

The execution configuration.

asynchronousSnapshots

@VisibleForTesting
protected final boolean asynchronousSnapshots

Flag to de/activate asynchronous snapshots.

restoreStateHandles

@VisibleForTesting
protected final Collection<OperatorStateHandle> restoreStateHandles

State handles for restore.

cancelStreamRegistry

@VisibleForTesting
protected final org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry

Constructor Detail

DefaultOperatorStateBackendBuilder

public DefaultOperatorStateBackendBuilder(ClassLoader userClassloader,
                                          org.apache.flink.api.common.ExecutionConfig executionConfig,
                                          boolean asynchronousSnapshots,
                                          Collection<OperatorStateHandle> stateHandles,
                                          org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry)

Method Detail

build

public DefaultOperatorStateBackend build()
                                  throws BackendBuildingException

Specified by:

build in interface StateBackendBuilder<DefaultOperatorStateBackend,BackendBuildingException>

Throws:

BackendBuildingException