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jeremybenn |
/* Callback.java -- marker interface for callback classes
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Copyright (C) 2003, Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.security.auth.callback;
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/**
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* <p>Implementations of this interface are passed to a {@link CallbackHandler},
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* allowing underlying security services the ability to interact with a calling
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* application to retrieve specific authentication data such as usernames and
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* passwords, or to display certain information, such as error and warning
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* messages.</p>
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*
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* <p><code>Callback</code> implementations do not retrieve or display the
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* information requested by underlying security services. <code>Callback</code>
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* implementations simply provide the means to pass such requests to
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* applications, and for applications, if appropriate, to return requested
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* information back to the underlying security services.</p>
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*
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* @see CallbackHandler
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* @see ChoiceCallback
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* @see ConfirmationCallback
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* @see LanguageCallback
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* @see NameCallback
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* @see PasswordCallback
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* @see TextInputCallback
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* @see TextOutputCallback
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*/
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public interface Callback {
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}
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