Sunday, May 22, 2011

Secure Sockets Layer (SSL) protocol

1. Secure Sockets Layer (SSL) is a protocol that provides secure authentication and transmits encrypted data over the Internet or an internal network.

2. TIBCO Enterprise Message Service supports the Secure Sockets Layer (SSL) protocol.

3. SSL uses public and private keys to encrypt data over a network connection to secure communication between pairs of components:

  • between an EMS client and the tibemsd server

  • between the tibemsadmin tool and the tibemsd server

  • between two routed servers

  • between two fault-tolerant servers

4. Digital certificates are data structures that represent identities. EMS uses certificates to verify the identities of servers and clients. A digital certificate is issued either by a trusted third-party certificate authority, or by a security officer within your enterprise.

5. JMS Java clients can use either JSSE (from Sun JavaSoft) or the SSL implementation from Entrust.


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Sunday, May 15, 2011

Administered Objects: JMS Connection Factories

1. JMS clients access the destinations and connection factory objects through interfaces that are portable, so a client application can run with little or no change on more than one implementation of the JMS API.

2. Ordinarily, an administrator configures administered objects in a Java Naming and Directory Interface (JNDI) API namespace, and JMS clients then look them up, using the JNDI API. J2EE applications always use the JNDI API.

Connection Factories:

1. A connection factory is the object a client uses to create a connection with a provider. A pair of connection factories come preconfigured with the J2EE SDK and are accessible as soon as you start the service.

2. Each connection factory is an instance of either the QueueConnectionFactory or the TopicConnectionFactory interface.

3. We can use the default connection factory objects, to create connections.

4. At the beginning of a JMS client program, perform a JNDI API lookup of the connection factory.


Saturday, May 7, 2011

What is JMS API & when we can use JMS?

1. Messaging is a method of communication between software components or applications.

2. JMS API allows applications to create, send, receive, and read messages.

Messaging could be Synchronous, Asynchronous and Reliable types.

Synchronous: A client that waits for the server to respond to a message.
Asynchronous: A client does not have to request server in order to receive message.
Reliable: Can ensure message is delivered safely once and only once.

Circumstances When We can Use JMS :

1. The provider wants the components not to depend on information about other component's interfaces, so that components can be easily replaced.

2. The provider wants the application to run whether or not all component sare up and running simultaneously.

3. The application business model allows a component to send information to another and to continue to operate without receiving an immediate response.

To know about TIBCO Enterprise Message Service (EMS) which is fully compliant Java Message Service (JMS) Click here.


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