As mentioned in
Adapter Service Node Signatures, typically you load a signature's name and data type parameters using resource domain lookups. You implement lookups by including an adapterResourceDomainLookup method in your WmManagedConnection implementation class.
These parameters are implemented as string arrays, with the corresponding index in each array used to associate a name with a data type. The following subsections describe the values you supply in your resource domains for the name and data type parameters.