Overriding of services
----------------------
Key: HIVEMIND-109
URL: http://issues.apache.org/jira/browse/HIVEMIND-109
Project: HiveMind
Type: Improvement
Components: framework
Versions: 1.1
Reporter: Stefan Liebig
The current (HM 1.1 alpha 3) support for overriding of services is not
sufficent, because it is based on a �same-module� semantic and does not make
its intention explicit.
A solution is requiered which allows to
- declare a service in a module
- provide a (default) implementation in another module
- provide an �override� in a third module
Additionally the intent of the developer(s) should be made explicit, i.e. it
should be possible to express that an implementation:
- is the default implementation
- is thought to be overridable
- is thought to be the overriding implementation (should this require the
existence of a default overridable implementation?)
Any conflicts (more that one overide, ..) should be reported as an error.
Such a solution is requiered because we build a framework where services are
declared in a base module and implmentations are provided in client/server
specific modules. Some of these �default� implementations should be overridable
by the users of the framework to provide some special behaviour.
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