[ecf-dev] ECF-RFC119 custom discovery provider?

[Bryan Hunt <bhunt@xxxxxxx>]

I'm now looking at creating a custom discovery provider.  My services  
will be distributed across a WAN, but I'll have a couple of permanent  
servers that can be used for discovery.  Looking at the JMDNS  
provider, I see it contributes three factories:

ecf.discovery.jmdns
ecf.discovery.jmdns.locator
ecf.discovery.jmdns.advertiser

I think I understand the locator and the advertiser ... what's the  
third factory?  If I have a service that needs to be discovered, but  
will never access any other remote services, do I still need to  
provide all three factories?  Also, is extending  
AbstractDiscoveryContainerAdapter the place to start?

Bryan