- All Implemented Interfaces:
 
- Ice.TwowayCallback, Ice.TwowayCallbackArg1<byte[]>, Ice.TwowayCallbackArg1UE<byte[]>
 
public abstract class Callback_ThumbnailStore_getThumbnail
extends IceInternal.TwowayCallback
implements Ice.TwowayCallbackArg1UE<byte[]>
Retrieves a thumbnail for a pixels set using a given set of
 rendering settings (RenderingDef). If the thumbnail exists
 in the on-disk cache it will be returned directly,
 otherwise it will be created as in
 getThumbnailDirect, placed in the on-disk
 cache and returned. If the thumbnail is missing, a clock will
 be returned to signify that the thumbnail is yet to be generated.