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-/* SpinnerModel.java --
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package javax.swing;
-
-import javax.swing.event.ChangeListener;
-
-/**
- * @since 1.4
- */
-public interface SpinnerModel
-{
- /**
- * Sets the current value of the model to that specified.
- * Implementations can choose to refuse to accept the value
- * and throw an exception instead. For example, a date model
- * may throw invalid dates, or a list model may throw out
- * values which don't exist in the underlying list. Models
- * may also throw out unusual values, such as null. The decision
- * is left to the discretion of the implementator. If the
- * operation succeeds, the implementation should also notify
- * any registered <code>ChangeListener</code>s.
- *
- * @param value The new value of the model.
- * @throws IllegalArgumentException if the model does not accept
- * the given value.
- */
- void setValue(Object value);
-
- /**
- * Returns the current value of the model.
- *
- * @return The current value.
- */
- Object getValue();
-
- /**
- * Returns the next value from the model. If the model is bounded,
- * this method may return null when the upper bound is met.
- * The current value is not changed.
- *
- * @return The next value, or null if there are no more values
- * to retrieve.
- */
- Object getNextValue();
-
- /**
- * Returns the previous value from the model. If the model is
- * bounded, this method may return null when the lower bound is
- * met. The current value is not changed.
- *
- * @return The previous value, or null if there are no more
- * values to retrieve.
- */
- Object getPreviousValue();
-
- /**
- * Adds a <code>ChangeListener</code> to the list of registered
- * listeners. Each listener is notified when the current value
- * is changed.
- *
- * @param listener The new listener to register.
- */
- void addChangeListener(ChangeListener listener);
-
- /**
- * Removes a given <code>ChangeListener</code> from the list
- * of registered listeners.
- *
- * @param listener The listener to remove.
- */
- void removeChangeListener(ChangeListener listener);
-
-}