// $Id: ActionSetMultiplicity.java,v 1.6 2004/02/29 12:35:46 linus Exp $
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// $Id: ActionSetMultiplicity.java,v 1.6 2004/02/29 12:35:46 linus Exp $
package org.argouml.uml.ui;

import java.awt.event.ActionEvent;

import org.argouml.i18n.Translator;

/**
 * Framework action to set the multiplicity of some modelelement.
 * @author jaap.branderhorst@xs4all.nl	
 * @since Jan 6, 2003
 */
public abstract class ActionSetMultiplicity extends UMLChangeAction {

    /**
     * Constructor for ActionSetMultiplicity.
     */
    protected ActionSetMultiplicity() {
        super(Translator.localize("Set"), true, NO_ICON);
    }
            
    /**
     * @see
     * java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    public void actionPerformed(ActionEvent e) {
        super.actionPerformed(e);
        Object source = e.getSource();
        if (source instanceof UMLComboBox2) {
            Object selected = ((UMLComboBox2) source).getSelectedItem();
            Object target = ((UMLComboBox2) source).getTarget();
            if (target != null && selected != null)
                setSelectedItem(selected, target);
        }
    }
    
    /**
     * The user should implement this method to set the multiplicity (the given
     * item) for the target of the comboboxmodel (target
     * @param item The multiplicity that should be set
     * @param target The target of the comboboxmodel (the modelelement that
     * should have its multiplicity set).
     */
    public abstract void setSelectedItem(Object item, Object target);

}