最病 ○ bject Persistence a during execution of application: objects are created and manipulated a What happens to objects after termination? a Various kinds of objects 口 Transient objects: a Disappear with current session a Persistent objects Stay around from session to session May be shared with other applications(e.g. databases Institute of Computer Software 2021/1/28 Nanjing UniversityObject Persistence  During execution of application: objects are created and manipulated  What happens to objects after termination?  Various kinds of objects  Transient objects: ◼ Disappear with current session  Persistent objects: ◼ Stay around from session to session ◼ May be shared with other applications (e.g. databases) 2021/1/28 Institute of Computer Software Nanjing University 40