org.apache.commons.messenger

Interface Summary
Interface	Description
Messenger	`Messenger` a facade over the JMS API making it easy to use JMS and hiding much of the complexity of threading and configuration.
MessengerListener	`MessengerListener` is a JMS MessageListener which is associated with a Messenger instance so that it can send replies or send other messages using the same JMS connection to which its listening.
XACapable	`XACapable` is an object (typically a MessageListener in this context) which can be part of an XA transaction.

Class Summary
Class	Description
DefaultMessenger	`DefaultMessenger` is the default implementation of Messenger which uses a `ThreadLocal` variable to keep the JMS Session that should be used for a given calling thread.
DefaultServerSession	`DefaultServerSession` is a default implementation of the JMS ServerSession interface.
DefaultServerSessionPool	`DefaultServerSessionPool` is a default implementation of the JMS ServerSessionPool interface.
InitMessengerServlet	`InitMessengerServlet` is a simple servlet that will initialize the MessengerManager from a URL specified in the web.xml deployment descriptor.
JNDISessionFactory	`JNDISessionFactory` is a Factory of JMS Session objects which looks up the ConnectionFactory object from JNDI.
ListenerKey	`ListenerKey` is an implementation class allowing a Destination, MessageListener and an optional selector to be used as a key to a Map so that a single subscription can be easily associated with a MessageConsumer.
Lock	`Lock` is a simple lock.
MessengerDigester	`MessengerDigester` is a digester of Messenger objects so that JMS Messengers can be created from an XML config file.
MessengerListenerSupport	`MessengerListenerSupport` is an abstract base class for a MessengerListener objects which is useful for implementation inheritence.
MessengerManager	`MessengerManager` is a manager of `Messenger` instances.
MessengerServlet	`MessengerServlet` is a simple servlet that dispatches the current HTTP GET to a JMS connection to a receiveNoWait() call or a HTTP POST to send() message.
MessengerSession	`MessengerSession` represents all the local information for a single thread.
MessengerSupport	`MessengerSupport` is an abstract base class which implements most of the functionality of Messenger.
SessionFactory	`SessionFactory` is a Factory of JMS Session objects.
SimpleMessenger	`SimpleMessenger` is an implementation of Messenger which uses a single JMS Session for sending to keep the JMS Session that should be used for a given calling thread.
SimpleMessenger.ThreadLocalData
XACapableAdapter	`XACapableAdapter` is an adapter that implements XACapable for a given Messenger
XAMessenger	`XAMessenger` is a default implementation of Messenger which can also support XA transactions by enlisting and delisting XAResources.

Package org.apache.commons.messenger Description

The main Messenger interface, a simple facade for working with JMS, together with all the default implementation classes and additional factory classes.