You are writing an EE component that functions as a message producer. The message producer sends message to a JMS queue. The component environment defines a resource-ref of type…

Question

Options

• AContext context = new initialContext();
• BInitialContext Context = new Context () ;
• C@Resource ("ConnectionFactory")
• D@Resource (loopkup = "jms/QueueConnectionFactory")

• A
  3% (1)
• B
  8% (3)
• C
  5% (2)
• D
  84% (31)

Explanation

A connection factory is the object a client uses to create a connection to a provider. A connection factory encapsulates a set of connection configuration parameters that has been defined by an administrator. Each connection factory is an instance of theConnectionFactory, QueueConnectionFactory, or TopicConnectionFactory interface At the beginning of a JMS client program, you usually inject a connection factory resource into a ConnectionFactory object. For example, the following code fragment specifies a resource whose JNDI name is jms/ConnectionFactory and assigns it to a ConnectionFactory object: @Resource(lookup = "jms/ConnectionFactory") private static ConnectionFactory connectionFactory; The Java EE 6 Tutoria, The JMS API Programming Model

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