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A ConnectionFactory object encapsulates a set of connection 
 configuration 
 parameters that has been defined by an administrator. A client uses 
 it to create a connection with a JMS provider.
 
A ConnectionFactory object is a JMS administered object and
  supports concurrent use.
 
JMS administered objects are objects containing configuration information that are created by an administrator and later used by JMS clients. They make it practical to administer the JMS API in the enterprise.
Although the interfaces for administered objects do not explicitly depend on the Java Naming and Directory Interface (JNDI) API, the JMS API establishes the convention that JMS clients find administered objects by looking them up in a JNDI namespace.
An administrator can place an administered object anywhere in a namespace. The JMS API does not define a naming policy.
It is expected that JMS providers will provide the tools an
 administrator needs to create and configure administered objects in a 
 JNDI namespace. JMS provider implementations of administered objects 
 should be both javax.jndi.Referenceable and 
 java.io.Serializable so that they can be stored in all 
 JNDI naming contexts. In addition, it is recommended that these 
 implementations follow the JavaBeansTM 
 design patterns.
 
This strategy provides several benefits:
An administered object should not hold on to any remote resources. Its lookup should not use remote resources other than those used by the JNDI API itself.
Clients should think of administered objects as local Java objects. Looking them up should not have any hidden side effects or use surprising amounts of local resources.
Connection, 
QueueConnectionFactory, 
TopicConnectionFactory| Method Summary | |
|  Connection | createConnection()Creates a connection with the default user identity. | 
|  Connection | createConnection(java.lang.String userName,
                 java.lang.String password)Creates a connection with the specified user identity. | 
| Method Detail | 
public Connection createConnection()
                            throws JMSException
Connection.start method
 is explicitly called.
JMSException - if the JMS provider fails to create the
                         connection due to some internal error.
JMSSecurityException - if client authentication fails due to 
                         an invalid user name or password.
public Connection createConnection(java.lang.String userName,
                                   java.lang.String password)
                            throws JMSException
Connection.start method
 is explicitly called.
userName - the caller's user namepassword - the caller's password
JMSException - if the JMS provider fails to create the 
                         connection due to some internal error.
JMSSecurityException - if client authentication fails due to 
                         an invalid user name or password.| 
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Copyright 2003 Sun Microsystems, Inc. All rights reserved.