package Ġorg . vit riv r . cott ont ail . dbms . queries . operators . physical . definition Ċ Ċ import Ġorg . vit riv r . cott ont ail . core . database . Name Ċ import Ġorg . vit riv r . cott ont ail . dbms . catalog ue . Catalog ue Tx Ċ import Ġorg . vit riv r . cott ont ail . dbms . entity . Entity Ċ import Ġorg . vit riv r . cott ont ail . dbms . execution . operators . definition . Drop Entity Operator Ċ import Ġorg . vit riv r . cott ont ail . dbms . queries . context . Query Context Ċ Ċ /** Ċ Ġ* ĠA Ġ[ Data Definition Physical Operator Node ] Ġused Ġto Ġdrop Ġan Ġ[ Entity ]. Ċ Ġ* Ċ Ġ* Ġ@ author ĠR alph ĠG asser Ċ Ġ* Ġ@ version Ġ 1 . 0 . 0 Ċ Ġ*/ Ċ class ĠDrop Entity Physical Operator Node ( val Ġtx : ĠCatalog ue Tx , Ġval Ġentity Name : ĠName . Entity Name ): ĠData Definition Physical Operator Node (" Drop Entity ") Ġ{ ĊĠĠĠ Ġoverride Ġfun Ġcopy () Ġ= ĠDrop Entity Physical Operator Node ( this . tx , Ġthis . entityName ) ĊĠĠĠ Ġoverride Ġfun Ġto Operator ( ctx : ĠQuery Context ) Ġ= ĠDrop Entity Operator ( this . tx , Ġthis . entityName ) Ċ }