static public String buildConventionAttribute ( String mainConv , String ... convAtts ) { List < String > result = new ArrayList <> ( ) ; result . add ( mainConv ) ; for ( String convs : convAtts ) { if ( convs == null ) continue ; List < String > ss = breakupConventionNames ( convs ) ; // may be a list for ( String s : ss ) { if ( matchConvention ( s ) == null ) // only add extra ones, not ones that compete with mainConv result . add ( s ) ; } } // now form comma separated result boolean start = true ; Formatter f = new Formatter ( ) ; for ( String s : result ) { if ( start ) f . format ( "%s" , s ) ; else f . format ( ", %s" , s ) ; start = false ; } return f . toString ( ) ; }
Build a list of Conventions