Administration of the JMS Service

To configure the JMS Service and prepare JMS resources for use in applications deployed to the Enterprise Server, you must perform these tasks:

• Configuring the JMS Service

• The Default JMS Host

• Creating JMS Hosts

• Checking Whether the JMS Provider Is Running

• Creating Physical Destinations

• Creating JMS Resources: Destinations and Connection Factories

For more information about JMS administration tasks, see Chapter 19, Administering the Java Message Service (JMS) , in Sun GlassFish Enterprise Server v3 Administration Guide and the Sun GlassFish Message Queue 4.4 Administration Guide.

Configuring the JMS Service

The JMS Service configuration is available to all inbound and outbound connections pertaining to the Enterprise Server instance. You can edit the JMS Service configuration in the following ways:

• To edit the JMS Service configuration using the Administration Console, open the Java Message Service component under the relevant configuration. For details, click the Help button in the Administration Console.

• To configure the JMS service, use the asadmin set command to set the following attributes:

  server.jms-service.init-timeout-in-seconds = 60
  server.jms-service.type = EMBEDDED
  server.jms-service.start-args =
  server.jms-service.default-jms-host = default_JMS_host
  server.jms-service.reconnect-interval-in-seconds = 60
  server.jms-service.reconnect-attempts = 3
  server.jms-service.reconnect-enabled = true
  server.jms-service.addresslist-behavior = random
  server.jms-service.addresslist-iterations = 3
  server.jms-service.mq-scheme = mq
  server.jms-service.mq-service = jms

  You can also set these properties:

  server.jms-service.property.instance-name = imqbroker
  server.jms-service.property.instance-name-suffix =
  server.jms-service.property.append-version = false
  server.jms-service.property.user-name = 
  server.jms-service.property.password =

  You can use the asadmin get command to list all the JMS service attributes and properties. For details, see the Sun GlassFish Enterprise Server v3 Reference Manual.

You can override the JMS Service configuration using JMS connection factory settings. For details, see Chapter 19, Administering the Java Message Service (JMS) , in Sun GlassFish Enterprise Server v3 Administration Guide.

The Default JMS Host

A JMS host refers to a Sun GlassFish Message Queue broker. A default JMS host for the JMS service is provided, named default_JMS_host. This is the JMS host that the Enterprise Server uses for performing all Message Queue broker administrative operations, such as creating and deleting JMS destinations.

If you have created a multi-broker cluster in the Message Queue software, delete the default JMS host, then add the Message Queue cluster’s brokers as JMS hosts. In this case, the default JMS host becomes the first JMS host in the AddressList. For more information about the AddressList, see JMS Connection Features. You can also explicitly set the default JMS host; see Configuring the JMS Service.

When the Enterprise Server uses a Message Queue cluster, it executes Message Queue specific commands on the default JMS host. For example, when a physical destination is created for a Message Queue cluster of three brokers, the command to create the physical destination is executed on the default JMS host, but the physical destination is used by all three brokers in the cluster.

Creating JMS Hosts

You can create additional JMS hosts in the following ways:

• Use the Administration Console. Open the Java Message Service component under the relevant configuration, then select the JMS Hosts component. For details, click the Help button in the Administration Console.

• Use the asadmin create-jms-host command. For details, see the Sun GlassFish Enterprise Server v3 Reference Manual.

For machines having more than one host, use the Host field in the Administration Console or the -–mqhost option of create-jms-host to specify the address to which the broker binds.

Checking Whether the JMS Provider Is Running

You can use the asadmin jms-ping command to check whether a Sun GlassFish Message Queue instance is running. For details, see the Sun GlassFish Enterprise Server v3 Reference Manual.

Creating Physical Destinations

Produced messages are delivered for routing and subsequent delivery to consumers using physical destinations in the JMS provider. A physical destination is identified and encapsulated by an administered object (a Topic or Queue destination resource) that an application component uses to specify the destination of messages it is producing and the source of messages it is consuming.

If a message-driven bean is deployed and the Queue physical destination it listens to doesn’t exist, the Enterprise Server automatically creates the physical destination. However, it is good practice to create the Queue physical destination beforehand.

You can create a JMS physical destination in the following ways:

• Use the Administration Console. Open the Resources component, open the JMS Resources component, then select Physical Destinations. For details, click the Help button in the Administration Console.

• Use the asadmin create-jmsdest command. This command acts on the default JMS host of its target. For details, see the Sun GlassFish Enterprise Server v3 Reference Manual.

To purge all messages currently queued at a physical destination, use the asadmin flush-jmsdest command. This deletes the messages before they reach any message consumers. For details, see the Sun GlassFish Enterprise Server v3 Reference Manual.

To create a destination resource, see Creating JMS Resources: Destinations and Connection Factories.

Creating JMS Resources: Destinations and Connection Factories

You can create two kinds of JMS resources in the Enterprise Server:

• Connection Factories – administered objects that implement the ConnectionFactory, QueueConnectionFactory, or TopicConnectionFactory interfaces.

• Destination Resources – administered objects that implement the Queue or Topic interfaces.

In either case, the steps for creating a JMS resource are the same. You can create a JMS resource in the following ways:

• To create a JMS resource using the Administration Console, open the Resources component, then open the JMS Resources component. Click Connection Factories to create a connection factory, or click Destination Resources to create a queue or topic. For details, click the Help button in the Administration Console.

• A JMS resource is a type of connector. For more information about connectors, see Chapter 12, Developing Connectors.