是否允许将ejb引用传递给ejb的已使用类？

i have an EJB3 stateless session bean that uses some other ejbs to do its work. As i do not want to have all the logic in the ejb class itself, i created some classes which solve the problems. These classes are called by the ejb. To have the referenced ejbs in these classes i created a context object that holds the injected ejb references which is passed to the classes.i have an EJB3 stateless session bean that uses