@Entity(name = "OrganizationWithEmbeddedId")
    public static class OrganizationWithEmbeddedId {

        @EmbeddedId
        private OrganizationId id;
        private String name;
        @ManyToOne
        private OrganizationWithEmbeddedId parent;
        @OneToMany(mappedBy = "parent")
        private Set<OrganizationWithEmbeddedId> children;

        public OrganizationWithEmbeddedId() {
        }

        public OrganizationWithEmbeddedId(OrganizationId id, String name) {
            this.id = id;
            this.name = name;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public OrganizationWithEmbeddedId getParent() {
            return parent;
        }

        public void setParent(OrganizationWithEmbeddedId parent) {
            this.parent = parent;
        }

        public Set<OrganizationWithEmbeddedId> getChildren() {
            return children;
        }

        public void addChild(OrganizationWithEmbeddedId child) {
            if (children == null) {
                children = new HashSet<>();
            }
            children.add(child);
            child.setParent(this);
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            OrganizationWithEmbeddedId that = (OrganizationWithEmbeddedId) o;
            return Objects.equals(id, that.id);
        }

        @Override
        public int hashCode() {
            return Objects.hash(id);
        }

    }

    @Embeddable
    public static class OrganizationId implements java.io.Serializable {

        private static final long serialVersionUID = 1L;
        @Column(name = "id")
        private long value;

        OrganizationId() {
            super();
        }

        OrganizationId(long value) {
            this.value = value;
        }

        @Override
        public String toString() {
            return Long.toString(value);
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            OrganizationId that = (OrganizationId) o;
            return value == that.value;
        }

        @Override
        public int hashCode() {
            return Objects.hash(value);
        }
        
    }