public static synchronized void register ( final String serviceName , final Callable < Class < ? > > factory ) { if ( serviceName == null ) { throw new IllegalArgumentException ( "serviceName cannot be null" ) ; } if ( factory != null ) { if ( factories == null ) { factories = new HashMap < String , List < Callable < Class < ? > > > > ( ) ; } List < Callable < Class < ? > > > l = factories . get ( serviceName ) ; if ( l == null ) { l = new ArrayList < Callable < Class < ? > > > ( ) ; factories . put ( serviceName , l ) ; } l . add ( factory ) ; } }
Adds the given service provider factory to the set of providers for the service .