package Ġk g . j edi . four angle . bu is ness . service . crud Ċ Ċ import Ġk g . j edi . four angle . bu is ness . repository . Ad vert Repository Ċ import Ġk g . j edi . four angle . bu is ness . service . Ad vert Crud Service Ċ import Ġk g . j edi . four angle . domain . entity . Ad vert Ċ import Ġorg . springframework . stereotype . Service Ċ Ċ @ Service Ċ class ĠAd vert Crud ServiceImpl ( advert Repository : ĠAd vert Repository ) ĊĠĠĠ Ġ: ĠDefault Crud Service < Ad vert >( advert Repository ), ĠAd vert Crud Service