persistence - Query entity class with multiple joins using criteria api -


how select rows in table using docid column value , retrieve values in appointment table values in patient table. query should in criteria api. entity class follows 2 joins.

@entity @table(name="appointment") public class appintment implements serializable {     private static final long serialversionuid = 1l;      @id     @column(unique=true, nullable=false, length=20)     private string appid;      @temporal(temporaltype.date)     @column(name="app_date", nullable=false)     private date appdate;      //bi-directional many-to-one association doctors     @manytoone     @joincolumn(name="docid", nullable=false)     private doctor doctor;     //bi-directional many-to-one association patients    @manytoone    @joincolumn(name="userid", nullable=false)        private patient patient;  }


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