@SuppressWarnings("unchecked")
    public <C extends T> void setEntityType(Class<C> classOfT) {
        mirror = (Mirror<T>) Mirror.me(classOfT);
    }
@SuppressWarnings("unchecked")
    public <C extends T> void setEntityType(Class<C> classOfT) {
        mirror = (Mirror<T>) Mirror.me(classOfT);
    }
@ SuppressWarnings ( "unchecked" ) public < C extends T > void setEntityType ( Class < C > classOfT ) { mirror = ( Mirror < T > ) Mirror . me ( classOfT ) ; }
设置新的实体类型, 极少调用

@param classOfT
设置新的实体类型 极少调用