java - Generics with same base class -
i have treenode class defined so:
class treenode<t extends myclass> { public t element; public treenode<? extends myclass> parent; public arraylist<treenode<? extends myclass>> children; } i know if there easier way restrict treenodes generic type variables extend myclass? having write out arraylist<treenode<? extends myclass>> tedious. can't arraylist<treenode<t>> because tree cannot contain nodes different inheritance of myclass.
i tried this: public static const class node_class = treenode<? extends treenode>.class; don't think can use generics part of class object.
someting synonymous c++'s typedef guess, i.e. typedef treenode<? extends myclass> nodeclass;
since comment seemed you, i'll post answer:
i don't see point of using generics if t doesn't match between nodes in tree. given that, element should myclass.
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