org.everit.cluster.invalidationmap.support.node

Class NodeRegistry

java.lang.Object

org.everit.cluster.invalidationmap.support.node.NodeRegistry

public class NodeRegistry
extends Object

Node registry.

Constructor Summary

Constructors

Constructor and Description
NodeRegistry()

Method Summary

Modifier and Type	Method and Description
boolean	checkMessageOrder(String nodeName, long messageNumber) Maintains the message number registry, and checks whether the node has still out of order messages.
void	clear() Clears the whole registry.
boolean	ping(String nodeName, long messageNumber) Notifies the registry about a ping message.
boolean	receive(String nodeName, long messageNumber) Notifies the registry about a non-ping message.
boolean	registerIfNecessary(String nodeName, long startTimeNanos, long gotMessageNumber) Registers a node if is not registered or was restarted.
void	remove(String nodeName) Removes a node.
void	reset(String nodeName, long messageNumber) Resets the message number registry of the node if the node exists.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeRegistry

public NodeRegistry()

Method Detail

checkMessageOrder

public boolean checkMessageOrder(String nodeName,
                                 long messageNumber)

Maintains the message number registry, and checks whether the node has still out of order messages.

Parameters:

nodeName - Name of the node.

messageNumber - Message number.

Returns:

true if the node has not out of order messages or node not exists.

clear

public void clear()

Clears the whole registry.

ping

public boolean ping(String nodeName,
                    long messageNumber)

Notifies the registry about a ping message. Also checks whether the node has out of order messages.

Parameters:

nodeName - Name of the node.

messageNumber - Message number.

Returns:

true if message numbers are in order or node not exists.

receive

public boolean receive(String nodeName,
                       long messageNumber)

Notifies the registry about a non-ping message. Also checks whether the node has out of order messages.

Parameters:

nodeName - Name of the node.

messageNumber - Message number.

Returns:

true if message numbers are in order or node not exists.

registerIfNecessary

public boolean registerIfNecessary(String nodeName,
                                   long startTimeNanos,
                                   long gotMessageNumber)

Registers a node if is not registered or was restarted.

Parameters:

nodeName - Name of the node.

startTimeNanos - Start time in nanoseconds.

gotMessageNumber - Message number.

Returns:

true if the register of node was performed.

remove

public void remove(String nodeName)

Removes a node.

Parameters:

nodeName - Name of the node.

reset

public void reset(String nodeName,
                  long messageNumber)

Resets the message number registry of the node if the node exists.

Parameters:

nodeName - Name of the node.

messageNumber - Message number.