org.apache.flink.runtime.state

Class SharedStateRegistryKey

java.lang.Object

org.apache.flink.util.StringBasedID

org.apache.flink.runtime.state.SharedStateRegistryKey

All Implemented Interfaces:

Serializable

public class SharedStateRegistryKey
extends org.apache.flink.util.StringBasedID

This class represents a key that uniquely identifies (on a logical level) state handles for registration in the SharedStateRegistry. Two files which should logically be the same should have the same SharedStateRegistryKey. The meaning of logical equivalence is up to the application.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SharedStateRegistryKey(String keyString)
SharedStateRegistryKey(String prefix, StateHandleID stateHandleID)

Method Summary

Modifier and Type	Method and Description
static SharedStateRegistryKey	forStreamStateHandle(StreamStateHandle handle) Create a unique key based on physical id.

Methods inherited from class org.apache.flink.util.StringBasedID

equals, getKeyString, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SharedStateRegistryKey

public SharedStateRegistryKey(String prefix,
                              StateHandleID stateHandleID)

SharedStateRegistryKey

@VisibleForTesting
public SharedStateRegistryKey(String keyString)

Method Detail

forStreamStateHandle

public static SharedStateRegistryKey forStreamStateHandle(StreamStateHandle handle)

Create a unique key based on physical id.