code: public TrimmedMultiFrameImage getFrames (int orient)
      {
          _key.setOrient(orient);
          CompositedMultiFrameImage cmfi =
              _frameCache.get(_key);
          if (cmfi == null) {
              cmfi = createFrames(orient);
              _frameCache.put(new CompositedFramesKey(orient), cmfi);
          }
          return cmfi;
      }
docs: documentation inherited from interface