/*
*/
import java.io.Serializable;
-import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import javax.persistence.Table;
-import javax.persistence.Temporal;
-import javax.persistence.TemporalType;
@Entity
@Table(name="zone")