code: public int getOverlapLength(HmmerResult other){
  
  		int overlap = 0;
  		for ( HmmerDomain d1 : getDomains()){
  			for (HmmerDomain d2 : other.getDomains()){
  				overlap += getOverlap(d1, d2);
  			}
  		}
  		return overlap;
  
  	}
docs: Get the overlap between two HmmerResult objects
  
  @param other
  @return 0 if no overlap, otherwise the length of the overlap