tring</A> <B>getId</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../../com/bumptech/glide/load/ResourceDecoder.html#getId()">ResourceDecoder</A></CODE></B></DD>
<DD>Returns an ID identifying any transformation this decoder may apply to the given data that will be mixed in to
 the cache key.

 <p>
     If the decoder does not transform the data in a way that significantly affects the cached
     result (ie performs no downsampling) an empty string is an appropriate id.