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Method CreateSubscription

CreateSubscription(MessageReceivedCallback, DeliveryMode)

This method is used to register against a topic on the cache if a topic exists, otherwise throws exception.

Declaration
ITopicSubscription CreateSubscription(MessageReceivedCallback messageReceivedCallback, DeliveryMode deliveryMode = DeliveryMode.Sync)
Parameters
Type Name Description
MessageReceivedCallback messageReceivedCallback

The Message is delivered through this callback.

DeliveryMode deliveryMode

An optional parameter which specifies whether to deliver messages to register subscribers synchronously or asynchronously. Default value of this parameter is Sync.

Returns
Type Description
ITopicSubscription

It returns the created topic subscription.

Examples

The following example demonstrates how to create a subscription on a topic.

First, initialize the cache.

ICache cache = CacheManager.GetCache("myCache");

Then, get messaging service from the cache.

IMessagingService messagingService=cache.MessagingService;

Then, get topic from the messagingService.

ITopic topic=messagingService.GetTopic("mytopic");  
if(topic==null)  //If topic not exists create it.
{
  topic=messagingService.CreateTopic("mytopic");
}

Then, create the subscription.

void MessageReceivedCallback(object sender, MessageEventArgs args)
{

}

topic.CreateSubscription(MessageReceivedCallback);
In This Article
  • CreateSubscription(MessageReceivedCallback, DeliveryMode)

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