Package org.apache.hadoop.ha

Enum HealthMonitor.State

java.lang.Object

java.lang.Enum<HealthMonitor.State>

org.apache.hadoop.ha.HealthMonitor.State

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<HealthMonitor.State>

Enclosing class:

HealthMonitor

@Private
public static enum HealthMonitor.State
extends java.lang.Enum<HealthMonitor.State>

Enum Constant Summary

Enum Constants

Enum Constant	Description
HEALTH_MONITOR_FAILED	The health monitor itself failed unrecoverably and can no longer provide accurate information.
INITIALIZING	The health monitor is still starting up.
SERVICE_HEALTHY	The service is connected and healthy.
SERVICE_NOT_RESPONDING	The service is not responding to health check RPCs.
SERVICE_UNHEALTHY	The service is running but unhealthy.

Method Summary

Modifier and Type	Method	Description
static HealthMonitor.State	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static HealthMonitor.State[]	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

INITIALIZING

public static final HealthMonitor.State INITIALIZING

The health monitor is still starting up.

SERVICE_NOT_RESPONDING

public static final HealthMonitor.State SERVICE_NOT_RESPONDING

The service is not responding to health check RPCs.

SERVICE_HEALTHY

public static final HealthMonitor.State SERVICE_HEALTHY

The service is connected and healthy.

SERVICE_UNHEALTHY

public static final HealthMonitor.State SERVICE_UNHEALTHY

The service is running but unhealthy.

HEALTH_MONITOR_FAILED

public static final HealthMonitor.State HEALTH_MONITOR_FAILED

The health monitor itself failed unrecoverably and can no longer provide accurate information.

Method Detail

values

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

Returns:

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

valueOf

public static HealthMonitor.State valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null