DataFetcher.html" title="interface in com.bumptech.glide.load.data"><CODE>DataFetcher</CODE></A> will not be used if the resource is already cached.

 <p>
     Note - If no valid data fetcher can be returned (for example if a model has a null URL), then it is
     acceptable to return a null data fetcher from this method. Doing so will be treated any other failure or
     exception during the load process.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/bumptech/glide/load/m