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@EntityScan({"org.onap.policy.models.tosca.simple.concepts",
    "org.onap.policy.clamp.controlloop.models.controlloop.persistence.concepts"})
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

@Embeddable
@Data
public class ExampleKey implements Serializable {

    private static final long serialVersionUID = 1L;

    @Column(name = "name", length = 120)
    private String name;

    @Column(name = "version", length = 20)
    private String version;
}

@Entity
@Table(name = "Example")
@Data
@EqualsAndHashCode
public class JpaExample implements Serializable {

    private static final long serialVersionUID = 1L;

    @EmbeddedId
    @VerifyKey
    @NotNull
    private ExampleKey key;

    @Column
    private Boolean primed;

    @Column(name = "timeStamp", precision = 3)
    @Temporal(TemporalType.TIMESTAMP)
    @NotNull
    private Date timeStamp;
}

@Entity
@Table(name = "ExampleObjMap")
@Data
@EqualsAndHashCode
public class JpaExampleObjMap implements Serializable {

    private static final long serialVersionUID = 1L;

    @EmbeddedId
    @VerifyKey
    @NotNull
    private ExampleKey key;

    @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
    @Lob
    private Map<@NotNull String, @NotNull JpaExample> examples;
}

ExampleObjMap:
  name: ExampleObjMap
  version: 1.0.0
  examples:
    MyKey1:
      name: example1
      version: 1.0.0
     MyKey2:
      name: example2
      version: 1.0.0

@Entity
@Table(name = "ExampleObjMap")
@Data
@EqualsAndHashCode
public class JpaExampleObjMap implements Serializable {

    private static final long serialVersionUID = 1L;

    @EmbeddedId
    @VerifyKey
    @NotNull
    private ExampleKey key;

    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
    @JoinTable(
            joinColumns = {@JoinColumn(name = "parent_name", referencedColumnName = "name"),
                    @JoinColumn(name = "parent_version", referencedColumnName = "version")},
            inverseJoinColumns = {@JoinColumn(name = "child_name", referencedColumnName = "name"),
                    @JoinColumn(name = "child_version", referencedColumnName = "version")})
    private Map<@NotNull String, @NotNull JpaExample> examples;
}

@Entity
@Table(name = "ExampleObjMapEc")
@Data
@EqualsAndHashCode
public class JpaExampleObjMapEc implements Serializable {

    private static final long serialVersionUID = 1L;

    @EmbeddedId
    @VerifyKey
    @NotNull
    private ExampleKey key;

    @ElementCollection
    @Lob
    private Map<@NotNull String, @NotNull JpaExample> examples;
}