For now there is only a link to services.html from the tutorial.
The best place to add another link seems
https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide
Jacques
Le 31/08/2014 12:14, Pierre @GMail a écrit :
That is a nice piece of explanation. Should be part of the documentation, if it
is not already.
Regards,
Pierre
Sent from my iPhone
On 31 aug. 2014, at 11:56, Jacopo Cappellato
<[email protected]> wrote:
On Aug 31, 2014, at 11:36 AM, Jacopo Cappellato
<[email protected]> wrote:
a) what is the original concern of DispatchContext and of GenericDispatcher
This comes from this old but still interesting document:
http://ofbiz.apache.org/docs/services.html
========================================
*Service Dispatcher*
The Service Dispatcher handles dispatching services to the appropriate Service
Engine where it is then invoked. There is exactly one ServiceDispatcher for
each Entity Delegator. If there are multiple delegators in an application there
will also be multiple dispatchers. The ServiceDispatcher is accessed via a
LocalDispatcher. There can be many LocalDispatchers associated with a
ServiceDispatcher. Each LocalDispatcher is uniquely named and contains its own
list of service definitions. When creating an instance of a LocalDispatcher, a
DispatchContext is also created and passed to the ServiceEngine.
A LocalDispatcher is associated with an application. Applications never talk
directly to the ServiceDispatcher. The LocalDispatcher contains an API for
invoking services, which are routed through the ServiceDispather. However,
applications may be running in different threads than the actual
ServiceDispatcher, so it is left to the LocalDispatcher to keep a
DispatchContext which among other things keeps a reference to the applications
classloader.
*Dispatch Context*
The DispatchContext is created by the LocalDispatcher upon instantiation. This
is the runtime dispatcher context. It contains necessary information to process
services for each dispatcher. This context contains the reference to each of
the service definition files, the classloader which should be used for
invocation, a reference to the delegator and its dispatcher along with a 'bag'
of user defined attributes. This context is passed on to each service when
invoked and is used by the dispatcher to determine the service's model.
========================================
Jacopo
