ee.telekom.workflow.core.node

Enum NodeStatus

java.lang.Object

java.lang.Enum<NodeStatus>

ee.telekom.workflow.core.node.NodeStatus

All Implemented Interfaces:

Serializable, Comparable<NodeStatus>

public enum NodeStatus
extends Enum<NodeStatus>

Nodes regularly check their status and start/stop working based on the status stored in a database. This enables one node to start/stop other nodes.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DISABLE The node should stop working when it next time checks its status.
DISABLED The node has stopped working.
ENABLE The node should start working when it next time checks its status.
ENABLED The node has started working.
FAILED A node is marked considered failed/dead if it ENABLED but does not regularly update its heartbeat.

Method Summary

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

ENABLE

public static final NodeStatus ENABLE

The node should start working when it next time checks its status.

ENABLED

public static final NodeStatus ENABLED

The node has started working. A node in this status is considered dead, if it does not regularly update its heartbeat.

DISABLE

public static final NodeStatus DISABLE

The node should stop working when it next time checks its status.

DISABLED

public static final NodeStatus DISABLED

The node has stopped working.

FAILED

public static final NodeStatus FAILED

A node is marked considered failed/dead if it ENABLED but does not regularly update its heartbeat. The cluster's master regularly check's whether other nodes to this end.

Method Detail

values

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

Returns:

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

valueOf

public static NodeStatus 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