ResourceManager should provide version of getResources( ) that filters by
resource type (context path)
------------------------------------------------------------------------------------------------------
Key: MUSE-120
URL: http://issues.apache.org/jira/browse/MUSE-120
Project: Muse
Issue Type: Improvement
Components: Core Engine - Resource and Capability APIs
Affects Versions: 2.0.0
Reporter: Dan Jemiolo
Assigned To: Dan Jemiolo
Priority: Minor
Fix For: 2.1.0
We've had a request for a version of ResourceManager.getResources( ) that
returns all instances of a given resource type. This would require the addition
of one method to ResourceManager and the implementation of that method to
SimpleResourceManager. This may affect OSGiResourceManager - Joel will need to
confirm. The new interface would be backwards compatible with the 2.0 version,
since it's just adding a method.
The easiest implementation is also the safest, as it does not modify any
existing code in SimpleResourceManager. It would use the current
getResourceContextPath( ) method and then look through the EPR hash table to
find EPRs that had the given context path. If we decide to do this
implementation, it would easily fall into the realm of "minor improvement" and
meet our 2.1 criteria.
However - this implementation is also much slower than it could be (it's a
linear search). We could alter the SimpleResourceManager implementation to
store the EPR/resource mapping differently and improve the speed of the lookup
without affecting the more general EPR/resource lookup. Of course, this
requires changing SimpleResourceManager code and is more drastic than the first
option. Given that the more general lookup is essential to basic Muse request
handling and we do not know how widespread use of the new method will be, I say
we go with the first option for 2.1 and document the performance consideration
in the JavaDoc.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
