I need to create a JTree view for a hierarchy of classes. Hiearchy is based on "Group"s, which contain child Groups and "Item"s. Group and Item classes are from my model. How can I build a TreeModel having both types of elements? All JTree customization examples are based on single type of objects. Any ideas?
Did not clearly get what you meant in the post... Still trying with what i understand.. dont mind if its absurd ;)
Define user objects by overriging DefaultMutableTreeNode.. model methods has generic signature as DMT or TreeNode.. so there should not be any problem in having a model with different types of object for various types of tree nodes...
I think what I need is the Composite pattern. DefaultMutableTreeNode does not do what I want. That way, Group : DefaultMutableTreeNode has references to Item's, but not to subGroups.
class Group {
vector<Group> subgroups;
vector<Item> items; // no - I don't want this.
}
class Item {
}
-
class Group implements Component {
vector <Component> children;
}
class Item implements Component {
}
--
You mean use DefaultMutableTreenode as Component.. Am I right? That would be an answer.
Thank you.