@Api
	public HandlerRegistration addFeatureTransactionHandler(final FeatureTransactionHandler handler) {
		return handlerManager.addHandler(FeatureTransactionHandler.TYPE, handler);
	}
@ Api public HandlerRegistration addFeatureTransactionHandler ( final FeatureTransactionHandler handler ) { return handlerManager . addHandler ( FeatureTransactionHandler . TYPE , handler ) ; }
Add a new handler for {@link FeatureTransactionEvent}s.

@param handler
the handler to be registered
@return handler registration
@since 1.7.0