Representation of a resource manager. A resource manager knows how to obtain
a resource for a given path.
Returns a resource for the given path.
It is the responsibility of the called to make sure that the path in Canonicalised.
path The path
- The resource representing the path, or null if no resource was found.
true if a resource change listener is supported
Registers a resource change listener, if the underlying resource manager support it
Removes a resource change listener