org.apache.slider.providers.agent

Enum ContainerState

java.lang.Object

java.lang.Enum<ContainerState>

org.apache.slider.providers.agent.ContainerState

All Implemented Interfaces:

Serializable, Comparable<ContainerState>

public enum ContainerState
extends Enum<ContainerState>

The states a component instance can be.

Enum Constant Summary

Enum Constants

Enum Constant and Description
HEALTHY
HEARTBEAT_LOST
INIT
UNHEALTHY

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canIssueCommands() Indicates whether or not it is a valid state to produce a command.
static ContainerState	valueOf(String name) Returns the enum constant of this type with the specified name.
static ContainerState[]	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

INIT

public static final ContainerState INIT

HEALTHY

public static final ContainerState HEALTHY

UNHEALTHY

public static final ContainerState UNHEALTHY

HEARTBEAT_LOST

public static final ContainerState HEARTBEAT_LOST

Method Detail

values

public static ContainerState[] 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 (ContainerState c : ContainerState.values())
    System.out.println(c);

Returns:

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

valueOf

public static ContainerState 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

canIssueCommands

public boolean canIssueCommands()

Indicates whether or not it is a valid state to produce a command.

Returns:

true if command can be issued for this state.