code: @Indexable(type = IndexableType.REINDEX)
  	@Override
  	public CPDisplayLayout updateCPDisplayLayout(
  		CPDisplayLayout cpDisplayLayout) {
  		return cpDisplayLayoutPersistence.update(cpDisplayLayout);
  	}
docs: Updates the cp display layout in the database or adds it if it does not yet exist. Also notifies the appropriate model listeners.
  
  @param cpDisplayLayout the cp display layout
  @return the cp display layout that was updated