[jdom-interest] detach() [eg]

Joseph Bowbeer jozart at csi.com
Sun Apr 22 21:35:34 PDT 2001

I agree that if Elliotte's proposal (throwing an exception) is a good way to
*not* allow someone to detach a root element.

Also, I suggest the following idiom for users who want to get around this
restriction without having to catch the exception:

    if (!elt.isRootElement()) { // precondition for detach
    } else {
        elt.getDocument().setRootElement(new Element("foo"));

An advantage of Elliotte's proposal over an implicit "placeholder" is that
we're leaving the door open for a future enhancement that *would* allow
someone to detach the root element :-)

Joe Bowbeer

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