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POis it acceptable to provide an API that is undefined a large part of the time?
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2013-08-19T21:28:40.487
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Body
<p>Given some type as follows:</p> <pre><code>class Thing { getInfo(); isRemoteThing(); getRemoteLocation(); } </code></pre> <p>The <code>getRemoteLocation()</code> method only has a defined result if <code>isRemoteThing()</code> returns true. Given that most <code>Thing</code>s are not remote, is this an acceptable API? The other option I see is to provide a <code>RemoteThing</code> subclass, but then the user needs a way to cast a <code>Thing</code> to a <code>RemoteThing</code> if necessary, which just seems to add a level of indirection to the problem.</p>
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<api><inheritance><undefined>
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is it acceptable to provide an API that is undefined a large part of the time?
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