A DESCRIPTION OF THE REQUEST :
I request that the interface javax.swing.tree.TreeModel have a generic type for the nodes.

Here is my suggested generic interface :

public interface TreeModel<N extends Object>
{
    public N getRoot();
    public N getChild(N parent, int index);
    public int getChildCount(N parent);
    public boolean isLeaf(N node);
    public void valueForPathChanged(TreePath path, N newValue);
    public int getIndexOfChild(N parent, N child);
    void addTreeModelListener(TreeModelListener l);
    void removeTreeModelListener(TreeModelListener l);
}



JUSTIFICATION :
The interface javax.swing.tree.TreeModel is the representation of something that can virtually be seen as a container, so it seem logic to apply the generic changes that were applied to the collection to the TreeModel also.

The TreeModel implementations actually need to be implemented in the old fashion, with a lot of cast from the type Object to the type that the imlementor suppose the nodes are really (and they pray that the JTree will not call the model with another type of node that the one that the programmer assume).

I think this is a good candidate for the generics.

Note : perhaps the same request can be applied to the table models, list models, etc ...
###@###.### 10/14/04 19:40 GMT