- Seven policies give the POA a lot of flexibility
- ORB vendors can add their own policies
- We will see how to use these policies in a few example configurations.
- The choice of policies depends on the style of object implementation and the performance goals of the system.
- Implementation style
- Objects persist beyond the lifetime of the server
- Objects have natural identifiers
- Servants are stateless
- Simple implementation
- Performance goals
- Memory usage: number of servants and/or object references at one time
- Speed: make invokations fast as possible
|