Class MessageFactory

java.lang.Object

org.jgroups.MessageFactory

public class MessageFactory
extends Object

Factory to create messages. Uses an array for message IDs less then 32, and a hashmap for types above 32

Since:

5.0

Author:

Bela Ban

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Supplier<? extends Message>[]	creators
protected static Map<Short, Supplier<? extends Message>>	map
protected static final byte	MIN_TYPE

Constructor Summary

Constructors

Constructor	Description
MessageFactory()

Method Summary

Modifier and Type	Method	Description
static <T extends Message> T	create(short type)	Creates a message based on the given ID
static void	register(short type, Supplier<? extends Message> generator)	Registers a new creator of messages

Methods inherited from class Object

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

Field Details

MIN_TYPE

protected static final byte MIN_TYPE

See Also:

• Constant Field Values

creators

protected static final Supplier<? extends Message>[] creators

map

protected static Map<Short, Supplier<? extends Message>> map

Constructor Details

MessageFactory

public MessageFactory()

Method Details

create

public static <T extends Message> T create(short type)

Creates a message based on the given ID

Type Parameters:

T - The type of the message

Parameters:

type - The ID

Returns:

A message

register

public static void register(short type,
 Supplier<? extends Message> generator)

Registers a new creator of messages

Parameters:

type - The type associated with the new payload. Needs to be the same in all nodes of the same cluster, and needs to be available (ie., not taken by JGroups or other applications).

generator - The creator of the payload associated with the given type