src/java.desktop/share/classes/javax/swing/text/html/OptionComboBoxModel.java

/*
 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package javax.swing.text.html;

import javax.swing.*;
import java.io.Serializable;


/**
 * OptionComboBoxModel extends the capabilities of the DefaultComboBoxModel,
 * to store the Option that is initially marked as selected.
 * This is stored, in order to enable an accurate reset of the
 * ComboBox that represents the SELECT form element when the
 * user requests a clear/reset.  Given that a combobox only allow
 * for one item to be selected, the last OPTION that has the
 * attribute set wins.
 *
  @author Sunita Mani
 */
@SuppressWarnings("serial") // Superclass is not serializable across versions
class OptionComboBoxModel<E> extends DefaultComboBoxModel<E> implements Serializable {

    private Option selectedOption = null;

    /**
     * Stores the Option that has been marked its
     * selected attribute set.
     */
    public void setInitialSelection(Option option) {
        selectedOption = option;
    }

    /**
     * Fetches the Option item that represents that was
     * initially set to a selected state.
     */
    public Option getInitialSelection() {
        return selectedOption;
    }
}