gener oper accord uml notat pre stereotyp visibl paramet list type express properti pre type express type paramet shown depend set notat visibl properti shown shown author jaap branderhorst xs nl object model element us guillemet visibl type properti stereo str notat util uml gener stereotyp model facad stereotyp model element us guillemet recept model facad recept model element todo need recept stereo str notat util uml gener stereotyp recept keyword us guillemet stereo str unus current buffer tag valu sb tag valu model element let concaten result gen str buffer gen str buffer stereo str stereo str length gen str append stereo str append visibl vi str notat util uml gener visibl model element vi str gen str append vi str str model facad model element str str length gen str append str type default stai compat older argo uml version did set type paramet buffer paramet str buffer paramet str append append paramet list model element append returnparamet buffer para sb paramet model element recept gen str append paramet str append para sb para sb length gen str append para sb append gen str append properti buffer properti sb properti model element recept properti sb length gen str append properti sb gen str trim invalid element except model element delet work 