l go and retrieve the record from your
persistence layer; typically, this will be a JSON representation of the
record served from an HTTP server.</p>
<p><img src="/images/models/finding-unloaded-record-step1-diagram.png" alt="Diagram showing process for finding an unloaded record" /></p>
<p>As illustrated in the diagram above, the adapter cannot always return the
requested record immediately. In this case, the adapter must make an
<em>asynchronous</em> request to the server, and only when that request finis