You just implement ITreeProvider<Object>, the tree implementation doesn't care 
about the generics parameter. 
You'll have do an instanceof check in some places though.

Regards
Sven

ttboy_01 <[email protected]> schrieb:

>Hi Sven,
>
>I already have seen the examples of wicket tree but I don't know how to
>solve the problem with the different classes / types within the tree. Could
>you give me a hint for this problem?
>
>The structure is simple:
>
>// these are my roots
>class X {
>     private Set<Y> y;
>}
>// these are my nodes
>class Y {
>     private String foo;
>}
>
>Erik
>
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