Package org.apache.flink.state.changelog

Enum StateChangeOperation

java.lang.Object

java.lang.Enum<StateChangeOperation>

org.apache.flink.state.changelog.StateChangeOperation

All Implemented Interfaces:

Serializable, Comparable<StateChangeOperation>

@Internal
public enum StateChangeOperation
extends Enum<StateChangeOperation>

The operation applied to ChangelogState.

Enum Constant Summary

Enum Constants

Enum Constant	Description
ADD	Scope: key + namespace.
ADD_ELEMENT	Scope: key + namespace + element (e.g. user list append).
ADD_OR_UPDATE_ELEMENT	Scope: key + namespace + element (e.g. user map key put).
CLEAR	Scope: key + namespace.
MERGE_NS	Scope: key + namespace, also affecting other (source) namespaces.
METADATA	State metadata (name, serializers, etc.).
REMOVE_ELEMENT	Scope: key + namespace + element (e.g. user map remove or iterator remove).
SET	Scope: key + namespace.
SET_INTERNAL	Scope: key + namespace.

Method Summary

Modifier and Type	Method	Description
static StateChangeOperation	byCode(byte opCode)
byte	getCode()
static StateChangeOperation	valueOf(String name)	Returns the enum constant of this type with the specified name.
static StateChangeOperation[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CLEAR

public static final StateChangeOperation CLEAR

Scope: key + namespace.

SET

public static final StateChangeOperation SET

Scope: key + namespace.

SET_INTERNAL

public static final StateChangeOperation SET_INTERNAL

Scope: key + namespace.

ADD

public static final StateChangeOperation ADD

Scope: key + namespace.

MERGE_NS

public static final StateChangeOperation MERGE_NS

Scope: key + namespace, also affecting other (source) namespaces.

ADD_ELEMENT

public static final StateChangeOperation ADD_ELEMENT

Scope: key + namespace + element (e.g. user list append).

ADD_OR_UPDATE_ELEMENT

public static final StateChangeOperation ADD_OR_UPDATE_ELEMENT

Scope: key + namespace + element (e.g. user map key put).

REMOVE_ELEMENT

public static final StateChangeOperation REMOVE_ELEMENT

Scope: key + namespace + element (e.g. user map remove or iterator remove).

METADATA

public static final StateChangeOperation METADATA

State metadata (name, serializers, etc.).

Method Detail

values

public static StateChangeOperation[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (StateChangeOperation c : StateChangeOperation.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static StateChangeOperation valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

byCode

public static StateChangeOperation byCode(byte opCode)

getCode

public byte getCode()