Creating a connection factory and using it to create a connection
Binding a connection factory to the JNDI namespace
Obtaining an initial JNDI context
The Enterprise Messaging Grid directory service
The Enterprise Messaging Grid VM directory service
Predefined connection factories
The Enterprise Messaging Grid provides two ways for obtaining a JMS connection:
Create a JMS connection factory first, and use it to create the JMS connection.
Obtain the JMS connection factory with JNDI, and use that to obtain the JMS connection. To use this option, an administrator must have previously created and stored the connection factory in JNDI.
JMS specifications recommend the use of the second approach (JNDI), because it lets the configuration of the connection factories – which is vendor-specific and not covered by JMS – to be separated from the client code.
Client programs are permitted, however, to create the connection factories themselves and use them directly. This avoids the need for a JNDI lookup. However, if you choose this option, the configuration information must be hard-wired into the client code. Therefore, this method is more complex to administer and less portable among JMS providers.
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