samples/forjoe/src-api1.0/api/InterfaceThatJustJoeCanImplement.java
author Jaroslav Tulach <jtulach@netbeans.org>
Sat, 14 Jun 2008 09:53:37 +0200
changeset 76 ee4e8d38093e
child 132 3bc4c54f4bcc
permissions -rw-r--r--
Finished review of "are abstract classes useful?", up to line 1600
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package api;
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// BEGIN: forjoe.InterfaceThatJustJoeCanImplement
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public abstract class InterfaceThatJustJoeCanImplement {
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    protected InterfaceThatJustJoeCanImplement() {
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        if (!"impl.joe.JoesImpl".equals(getClass().getName())) {
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            throw new IllegalStateException("Sorry, you are not allowed to implement this class");
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        }
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    }
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    public abstract void everyoneCallThisJoeWillHandleTheRequest();
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}
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// END: forjoe.InterfaceThatJustJoeCanImplement