@ManyToMany(fetch = FetchType.LAZY, cascade = { CascadeType.DETACH})
@JoinTable(name = "suppliers_groups", joinColumns = { @JoinColumn(name = "supplierId") }, inverseJoinColumns = { @JoinColumn(name = "childGroupId") })
@OrderBy("id")
private Set<ChildGroup> childGroups;
//其他的类似