/*
 *  call-seq:
 *     iw.optimize -> iw
 *
 *  Optimize the index for searching. This commits any unwritten data to the
 *  index and optimizes the index into a single segment to improve search
 *  performance. This is an expensive operation and should not be called too
 *  often. The best time to call this is at the end of a long batch indexing
 *  process. Note that calling the optimize method do not in any way effect
 *  indexing speed (except for the time taken to complete the optimization
 *  process).
 */
static VALUE
frt_iw_optimize(VALUE self)
{
    IndexWriter *iw = (IndexWriter *)DATA_PTR(self);
    iw_optimize(iw);
    return self;
}