Usecases for External Policy Attachment

[ashok malhotra <ashok.malhotra@oracle.com>]

Here is my attempt to summarize the usecases for External Policy 
Attachment that we discussed on Monday's call.

1. Allow an External Policy file to be associated with a deployed 
composite. Michael Rowley says "I don’t know if we should generalize the 
addDeploymentComposite() to take multiple kinds of things, or add an 
explicit new operation like addExternalPolicy()."

2. Include the External Policy file in the sca-composite.xml file for a 
particular composite.

3. Once the External Policy file is associated with a domain by 
inclusion in a sca-composite.xml,
statements within the file declare whether the file is to be associated 
with other composites in the domain.
For example, a specific composite in a domain, all composites in the 
domain, composites in the domain
whose name matches some regex.

I must confess I don't really like the mechanism in 3. My preference 
would be to allow External Policy
files to be associated with a domain and statements within the file to 
determine which composites
within the domain it applies to. This requires a new mechanism to 
associate External Policy files with
domains.
-- 
All the best, Ashok