A datasource that may load asynchronously
Specify the URI for the data source: this is the prefix
that will be used to register the data source in the
data source registry.
| aURI | the URI to load |
Refresh the remote datasource, re-loading its contents
from the URI.
| aBlocking | If true, the call will block
until the datasource has completely reloaded.
|
Request that a data source write its contents out to
permanent storage, if applicable.
This value is true when the datasource has
fully loaded itself.