Creating a MessagingService Object

Creating a `MessagingService` Object

The MessagingService interface is the entry point for all functionality of the Java library.

To create a MessagingService object, you must provide an Oracle Messaging Cloud Service instance URL and user credentials to the MessagingServiceFactory.getMessagingService() method.

The MessagingServiceFactory.getMessagingService method takes two parameters:

A MessagingServiceNamespace object
A MessagingServiceCredentials object

Example to create a MessagingService object

MessagingServiceFactory factory = MessagingServiceFactory.getInstance();
 
String serviceUrl = "https://messaging.us2.oraclecloud.com/myservice-mydomain";
String username = "john.doe@example.com";
String password = "myPassword";
 
Namespace namespace = new MessagingServiceNamespace(serviceUrl);
 
Credentials credentials = new MessagingServiceCredentials(username, password);
 
MessagingService service = factory.getMessagingService(namespace, credentials);

Once a MessagingService object has been created, you can manage queues, topics, and message push listeners. You can also list, and retrieve the properties of durable subscriptions.

In addition you can create a ConnectionFactory to send and receive messages using the Java library. See ConnectionFactory Creation API for information about how to use the JMS API provided in the Java library to obtain a ConnectionFactory object.