software.amazon.kinesis.coordinator.migration

Class MigrationClientVersion3xState

java.lang.Object

software.amazon.kinesis.coordinator.migration.MigrationClientVersion3xState

All Implemented Interfaces:

MigrationClientVersionState

@ThreadSafe
public class MigrationClientVersion3xState
extends Object
implements MigrationClientVersionState

State for CLIENT_VERSION_3X which enables KCL to run 3.x algorithms on new KCLv3.x application or successfully upgraded application which upgraded from v2.x. This is a terminal state of the state machine and no rollbacks are supported in this state.

Constructor Summary

Constructors

Constructor and Description
MigrationClientVersion3xState()

Method Summary

Modifier and Type	Method and Description
ClientVersion	clientVersion() The associated clientVersion this state corresponds to
void	enter(ClientVersion fromClientVersion) Enter the state and perform the business logic of being in this state which includes performing any monitoring that allows the next state transition and also initializing the KCL based on the ClientVersion.
void	leave() Invoked after the transition to another state has occurred to allow printing any helpful logs or performing cleanup.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MigrationClientVersion3xState

public MigrationClientVersion3xState()

Method Detail

clientVersion

public ClientVersion clientVersion()

Description copied from interface: MigrationClientVersionState

The associated clientVersion this state corresponds to

Specified by:

clientVersion in interface MigrationClientVersionState

Returns:

ClientVersion that this state implements the logic for.

enter

public void enter(ClientVersion fromClientVersion)
           throws DependencyException

Description copied from interface: MigrationClientVersionState

Enter the state and perform the business logic of being in this state which includes performing any monitoring that allows the next state transition and also initializing the KCL based on the ClientVersion.

Specified by:

enter in interface MigrationClientVersionState

Parameters:

fromClientVersion - from previous state if any specific action must be taken based on the state from which this state is being entered from.

Throws:

DependencyException - if DDB fails in unexpected ways for those states that create the GSI

leave

public void leave()

Description copied from interface: MigrationClientVersionState

Invoked after the transition to another state has occurred to allow printing any helpful logs or performing cleanup.

Specified by:

leave in interface MigrationClientVersionState

toString

public String toString()

Overrides:

toString in class Object