java - Overriding @Id defined in a @MappedSuperclass -


i have class abstractentity extended entities in application , acts identifier provider.

@mappedsuperclass public class abstractentity implements domainentity {      private static final long serialversionuid = 1l;      /** object's id */     @id     @generatedvalue(strategy = generationtype.auto)     protected long id;      @temporal(temporaltype.timestamp)     @column(name="creation_date", nullable = false, updatable=false)     private date creationdate = new date();      /**      * @return id      */     public long getid() {         return this.id;     }      /**      * @param id id set      */     public void setid(long id) {         this.id = id;     } }

i have case need define separate id couple of entity classes these need have custom sequence generator. how can achieved? 

@entity @table(name = "sample_entity") public class childentity extends abstractchangeableentity {  @column(name = "batch_priority") private int priority;  public int getpriority() {         return priority;     } public void setpriority(int priority) {         this.priority = priority;     }

}

you can't it. check github example if want.

once define @id in base class won't able override in sub-class, meaning it's better leave @id responsibility each individual concrete class.


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