package Ġcom . little c org i . course ji . class Detail . repository Ċ Ċ import Ġcom . little c org i . course ji . class Detail . model . Class Ċ import Ġcom . little c org i . course ji . teacher . model . Teacher Ċ import Ġorg . springframework . data . jpa . repository . Jpa Repository Ċ Ċ /** Ċ Ġ* Ċ Ġ* Ġ@ author Ġlittle c org i Ċ Ġ* Ġ@ date Ġ 2 0 2 1 / 5 / 4 Ċ Ġ*/ Ċ interface ĠClass Repository Ġ: ĠJ pa Repository < Class , ĠLong > Ġ{ ĊĊĠĠĠ Ġ/** ĊĠĠĠĠ Ġ* Ġæł¹æį® teacher æī¾åĪ° æīĢæľīçļĦ çıŃ çº§ ĊĠĠĠĠ Ġ*/ ĊĠĠĠ Ġfun ĠfindAll By Teacher Order ById ( teacher : ĠTe acher ): ĠList < Class > Ċ }