This normally occurs when one is trying to promote greater reuse of their business objects , typically thinking that the ejbs can be considered " shared services . " while ascetically pleasing , this likely is not practical in many cases 人们一般认为可以将ejb视作“共享服务” ，所以当其试图更大程度地提高业务对象的重用性时，通常会出现这种情况。虽然所付出的努力令人欣慰，但这在许多场合可能是不实用的。
