@Entity

@Table(name="csdnbbs_sys_catalog")

@org.hibernate.annotations.Proxy(lazy = false)

public class Catalog {

private Catalog parent ;

private String  id ;

private String  name ;

private String  url ;

private Set<Catalog> children = new HashSet<Catalog>();

@OneToMany(cascade=CascadeType.ALL, mappedBy="parent")

        public Set<Catalog> getChildren() {

return children;

}

public void setChildren(Set<Catalog> children) {

this.children = children;

}

}