java - Presentation of a hierachical Type in a Tree or CellTree by GWT -


i want display hierachical type in celltree. when select 1 item, want display it's details on screen. type contains list of b, b list of c etc. have 5 levels, therefore have write 5 selectionmodel<t> every type. there way, implement every type own singleselectionmodel<t>, or write 1 singleselectionmodel<object> , use instanceof?

thanks in advance

i solved problem using interface hierachical type. provides method gives enum, identifies correct implementation of interface. able write 1 selectionmodel<interface>.


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