Reads the list of attributes owned by the given any object for the given schema type.
Note that for the UserService, GroupService and AnyObjectService subclasses, if the key parameter
looks like a UUID then it is interpreted as as key, otherwise as a (user)name.
Parameters:
key - any object key or name
schemaType - schema type
Returns:
list of attributes, owned by the given any object, for the given schema type
Reads the attribute, owned by the given any object, for the given schema type and schema.
Note that for the UserService, GroupService and AnyObjectService subclasses, if the key parameter
looks like a UUID then it is interpreted as as key, otherwise as a (user)name.
Parameters:
key - any object key or name
schemaType - schema type
schema - schema
Returns:
attribute, owned by the given any object, for the given schema type and schema