java - trouble with ebeans in play framework -


hi dudes new play framework , hate tutorials in google missing every time have problem following code body me please. 

public static model.finder<long, blog> find = new model.finder<long, blog>(long.class, blog.class);      public static list<blog> getallblogs(){         list<blog> menus = new arraylist<blog>();          menus = ebean.find(blog.class).findlist();         return menus;     }

what issue .class @ end of long , blog because in <> have why must explicitly type again? problem ebeans or thing else don't understand exactly


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