Used techniques for the framework of EVE
EVE framework is based on two architectural styles:
strict 'layered system' style to encapsulate different access requirements
of increasing complexity within different technologies and 'pipe-and-filter'
style to provide sequential transactional operation of service.
This combination leads to the following basic components
of the framework:
The Frame component encapsulates EVE services and
provides the service integration into the framework. The Frame implements
a coordinator for sequential operation of services, allows service
instantiation through dynamic class loading and provides transactional
behavior to allow service composition. This is realized as a
To offer EVE services on a LAN,
the Share component realizes a Jini
wrapper: It encapsulates the Frame component and shares it to a Jini
network as a service. A Share registers with a Jini
lookup service and can be accessed by NetFrame, as well as any other
The NetFrame component executes an EVE service remotely.
It locates the EVE service requested usuing service
name resolving and executes the service using a defined interface