org.elasticsearch.cluster

Enum MasterNodeChangePredicate

java.lang.Object

java.lang.Enum<MasterNodeChangePredicate>

org.elasticsearch.cluster.MasterNodeChangePredicate

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<MasterNodeChangePredicate>, ClusterStateObserver.ChangePredicate

public enum MasterNodeChangePredicate
extends java.lang.Enum<MasterNodeChangePredicate>
implements ClusterStateObserver.ChangePredicate

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE

Method Summary

Modifier and Type	Method and Description
boolean	apply(ClusterChangedEvent changedEvent) called to see whether a cluster change should be accepted
boolean	apply(ClusterState previousState, ClusterState.ClusterStateStatus previousStatus, ClusterState newState, ClusterState.ClusterStateStatus newStatus) a rough check used when starting to monitor for a new change.
static MasterNodeChangePredicate	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static MasterNodeChangePredicate[]	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

INSTANCE

public static final MasterNodeChangePredicate INSTANCE

Method Detail

values

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

Returns:

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

valueOf

public static MasterNodeChangePredicate 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

apply

public boolean apply(ClusterState previousState,
                     ClusterState.ClusterStateStatus previousStatus,
                     ClusterState newState,
                     ClusterState.ClusterStateStatus newStatus)

Description copied from interface: ClusterStateObserver.ChangePredicate

a rough check used when starting to monitor for a new change. Called infrequently can be less accurate.

Specified by:

apply in interface ClusterStateObserver.ChangePredicate

Returns:

true if newState should be accepted

apply

public boolean apply(ClusterChangedEvent changedEvent)

Description copied from interface: ClusterStateObserver.ChangePredicate

called to see whether a cluster change should be accepted

Specified by:

apply in interface ClusterStateObserver.ChangePredicate

Returns:

true if changedEvent.state() should be accepted