ITopic(T) Interface

ITopicT Interface

Hazelcast .Net Client Class Library

Hazelcast provides distribution mechanism for publishing messages that are delivered to multiple subscribers which is also known as publish/subscribe (pub/sub) messaging model.

Namespace: Hazelcast.Core
Assembly: Hazelcast.Net (in Hazelcast.Net.dll) Version: 3.9.1

Syntax

C++

Copy

public interface ITopic<T> : IDistributedObject

Public Interface ITopic(Of T)
	Inherits IDistributedObject

generic<typename T>
public interface class ITopic : IDistributedObject

type ITopic<'T> =  
    interface
        interface IDistributedObject
    end

Type Parameters

T

The ITopicT type exposes the following members.

Methods

	Name	Description
	AddMessageListener(IMessageListenerT)	Subscribes to this topic.
	AddMessageListener(ActionMessageT)	Subscribes to this topic.
	Destroy	Destroys this object cluster-wide. (Inherited from IDistributedObject.)
	GetName	Returns the name of this ITopic instance
	GetPartitionKey	Returns the key of partition this IDistributedObject is assigned to. (Inherited from IDistributedObject.)
	GetServiceName	Returns the service name for this object. (Inherited from IDistributedObject.)
	Publish	Publishes the message to all subscribers of this topic
	RemoveMessageListener	Stops receiving messages for the given message listener.

Top

Remarks

Hazelcast provides distribution mechanism for publishing messages that are delivered to multiple subscribers which is also known as publish/subscribe (pub/sub) messaging model. Publish and subscriptions are cluster-wide. When a member subscribes for a topic, it is actually registering for messages published by any member in the cluster, including the new members joined after you added the listener.

Messages are ordered, meaning, listeners(subscribers) will process the messages in the order they are actually published. If cluster member M publishes messages m1, m2, m3...mn to a topic T, then Hazelcast makes sure that all of the subscribers of topic T will receive and process m1, m2, m3...mn in order.

Reference

Hazelcast.Core Namespace