org.apache.nifi.cluster.node

Enum Node.Status

java.lang.Object

java.lang.Enum<Node.Status>

org.apache.nifi.cluster.node.Node.Status

All Implemented Interfaces:

Serializable, Comparable<Node.Status>

Enclosing class:

Node

public static enum Node.Status
extends Enum<Node.Status>

The semantics of a Node status are as follows:

• CONNECTED -- a flow controller that is connected to the cluster. A connecting node transitions to connected after the cluster receives the flow controller's first heartbeat. A connected node can transition to disconnecting.
• CONNECTING -- a flow controller has issued a connection request to the cluster, but has not yet sent a heartbeat. A connecting node can transition to disconnecting or connected. The cluster will not accept any external requests to change the flow while any node is connecting.
• DISCONNECTED -- a flow controller that is not connected to the cluster. A disconnected node can transition to connecting.
• DISCONNECTING -- a flow controller that is in the process of disconnecting from the cluster. A disconnecting node will always transition to disconnected.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CONNECTED
CONNECTING
DISCONNECTED
DISCONNECTING

Method Summary

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

CONNECTED

public static final Node.Status CONNECTED

CONNECTING

public static final Node.Status CONNECTING

DISCONNECTED

public static final Node.Status DISCONNECTED

DISCONNECTING

public static final Node.Status DISCONNECTING

Method Detail

values

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

Returns:

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

valueOf

public static Node.Status 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