org.mule.api.transport

Interface MessageDispatcherFactory

All Known Implementing Classes:

AbstractMessageDispatcherFactory, KeyedPoolMessageDispatcherFactoryAdapter, UnsupportedMessageDispatcherFactory

public interface MessageDispatcherFactory

MessageDispatcherFactory is a factory interface for managing the lifecycles of a transport's message dispatchers. The methods basically implement the KeyedPoolableObjectFactory lifecycle, with a ImmutableEndpoint as the key and the dispatcher as pooled object.

Method Summary

Methods

Modifier and Type	Method and Description
void	activate(OutboundEndpoint endpoint, MessageDispatcher dispatcher) Invoked before the given dispatcher is handed out to a client, but not after create(OutboundEndpoint).
MessageDispatcher	create(OutboundEndpoint endpoint) Creates a new message dispatcher instance, initialised with the passed endpoint.
void	destroy(OutboundEndpoint endpoint, MessageDispatcher dispatcher) Invoked when a dispatcher returned false for validate(OutboundEndpoint, MessageDispatcher).
boolean	isCreateDispatcherPerRequest() Controls whether dispatchers are cached or created per request.
void	passivate(OutboundEndpoint endpoint, MessageDispatcher dispatcher) Invoked immediately before the given dispatcher is returned to its pool.
boolean	validate(OutboundEndpoint endpoint, MessageDispatcher dispatcher) Invoked after the dispatcher is returned from a client but before it is prepared for return to its pool via passivate(OutboundEndpoint, MessageDispatcher).

Method Detail

isCreateDispatcherPerRequest

boolean isCreateDispatcherPerRequest()

Controls whether dispatchers are cached or created per request. Note that if an exception occurs in the dispatcher, it is automatically disposed of and a new one is created for the next request. This allows dispatchers to recover from loss of connection and other faults. When invoked by validate(OutboundEndpoint, MessageDispatcher) it takes precedence over the dispatcher's own return value of MessageDispatcher.validate().

Returns:

true if created per request

create

MessageDispatcher create(OutboundEndpoint endpoint)
                         throws MuleException

Creates a new message dispatcher instance, initialised with the passed endpoint. The returned instance should be immediately useable.

Parameters:

endpoint - the endoint for which this dispatcher should be created

Returns:

a properly created MessageDispatcher for this transport

Throws:

MuleException - if the dispatcher cannot be created

activate

void activate(OutboundEndpoint endpoint,
            MessageDispatcher dispatcher)
              throws MuleException

Invoked before the given dispatcher is handed out to a client, but not after create(OutboundEndpoint).

Parameters:

endpoint - the endpoint of the dispatcher

dispatcher - the dispatcher to be activated

Throws:

MuleException - if the dispatcher cannot be activated

validate

boolean validate(OutboundEndpoint endpoint,
               MessageDispatcher dispatcher)

Invoked after the dispatcher is returned from a client but before it is prepared for return to its pool via passivate(OutboundEndpoint, MessageDispatcher).

Parameters:

endpoint - the endpoint of the dispatcher

dispatcher - the dispatcher to be validated

Returns:

true if the dispatcher is valid for reuse, false otherwise.

passivate

void passivate(OutboundEndpoint endpoint,
             MessageDispatcher dispatcher)

Invoked immediately before the given dispatcher is returned to its pool.

Parameters:

endpoint - the endpoint of the dispatcher

dispatcher - the dispatcher to be passivated

destroy

void destroy(OutboundEndpoint endpoint,
           MessageDispatcher dispatcher)

Invoked when a dispatcher returned false for validate(OutboundEndpoint, MessageDispatcher).

Parameters:

endpoint - the endpoint of the dispatcher

dispatcher - the dispatcher to be validated