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Is it possible in plain JPA or JPA+Hibernate extensions to declare a composite key, where an element of the composite key is a sequence? This is my composite class: @Embeddable public class IntegrationEJBPk implements Serializable { //... @ManyToOne(cascade = {}, fetch = FetchType.EAGER) @JoinColumn(name = "APPLICATION") public ApplicationEJB getApplication() { return application; } @Column(name = "ENTITY", unique = false, nullable = false, insertable = true, updatable = true) public String getEntity() { return entity; } @GeneratedValue(strategy = GenerationType.AUTO, generator = "INTEGRATION_ID_GEN") @SequenceGenerator(name = "INTEGRATION_ID_GEN", sequenceName = "OMP_INTEGRATION_CANONICAL_SEQ") @Column(name = "CANONICAL_ID", unique = false, nullable = false, insertable = true, updatable = true) public String getCanonicalId() { return canonicalId; } @Column(name = "NATIVE_ID", unique = false, nullable = false, insertable = true, updatable = true) public String getNativeId() { return nativeId; } @Column(name = "NATIVE_KEY", unique = false, nullable = false, insertable = true, updatable = true) public String getNativeKey() { return nativeKey; } //... } I already supply the values for application , entity , nativeId and nativeKey . I want to construct an entity like the one below: IntegrationEJB i1 = new IntegrationEJB(); i1.setIntegrationId(new IntegrationEJBPk()); i1.getIntegrationId().setApplication(app1); i1.getIntegrationId().setEntity("Entity"); i1.getIntegrationId().setNativeId("Nid"); i1.getIntegrationId().setNativeKey("NK"); And when I call em.persist(i1 ), I want that the canonicalId is generated and the integration is inserted. Is this possible? If so, what's the simple way

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