Package com.linkedin.venice.helix

Enum Class HelixState

java.lang.Object

java.lang.Enum<HelixState>

com.linkedin.venice.helix.HelixState

All Implemented Interfaces:

Serializable, Comparable<HelixState>, Constable

public enum HelixState
extends Enum<HelixState>

States of Venice node in Helix. In order to realize zero-downtime upgrade, we assign an integer value for each of state.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
DROPPED
ERROR
LEADER
OFFLINE
STANDBY
UNKNOWN

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DROPPED_STATE
static final String	ERROR_STATE
static final String	LEADER_STATE
static final String	OFFLINE_STATE
static final String	STANDBY_STATE

Method Summary

Modifier and Type	Method	Description
int	getStateValue()
static HelixState	valueOf(String name)	Returns the enum constant of this class with the specified name.
static HelixState[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

OFFLINE

public static final HelixState OFFLINE

ERROR

public static final HelixState ERROR

DROPPED

public static final HelixState DROPPED

UNKNOWN

public static final HelixState UNKNOWN

LEADER

public static final HelixState LEADER

STANDBY

public static final HelixState STANDBY

Field Details

OFFLINE_STATE

public static final String OFFLINE_STATE

See Also:

• Constant Field Values

DROPPED_STATE

public static final String DROPPED_STATE

See Also:

• Constant Field Values

ERROR_STATE

public static final String ERROR_STATE

See Also:

• Constant Field Values

LEADER_STATE

public static final String LEADER_STATE

See Also:

• Constant Field Values

STANDBY_STATE

public static final String STANDBY_STATE

See Also:

• Constant Field Values

Method Details

values

public static HelixState[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static HelixState valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null

getStateValue

public int getStateValue()