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References: <5795767.60701276797863421.JavaMail.jira@thor>
	<17710855.28031277333810332.JavaMail.jira@thor>
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Date: Thu, 24 Jun 2010 09:41:23 +0200
Message-ID: <AANLkTinHXrz_MuNUTtRWA9Vg9iFzuRL8-yxWvrzE1aAI@mail.gmail.com>
Subject: Re: [jira] Commented: (CLK-696) Use typesafe collection
From: Finn Bock <bckfnn@gmail.com>
To: dev@click.apache.org
Content-Type: text/plain; charset=ISO-8859-1

2010/6/24 Adrian A:
> What if we make OptionGroup extend Option?
> Wouldn't that simplify the problem?

Indeed it would, but with a tiny risk of breaking existing user code like:

  Object opt = ...;
  if (opt instanceof Option) {
      doSomethingOption((Option) opt);
  } else if (opt instanceof OptionGroup) {
      doSomethingOptionGroup((OptionGroup) opt);
  }

regards,
Finn