package org.hibernate.test.annotations.derivedidentities.e3.b3; import javax.persistence.*; @Entity @Table(name="`Dependent`") public class Dependent { @EmbeddedId DependentId id; @JoinColumns({ @JoinColumn(name = "FIRSTNAME", referencedColumnName = "FIRSTNAME"), @JoinColumn(name = "LASTNAME", referencedColumnName = "lastName") }) @MapsId("empPK") @ManyToOne Employee emp; }