content: /* ========================================================================
   * JCommon : a free general purpose class library for the Java(tm) platform
   * ========================================================================
   *
   * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   * 
   * Project Info:  http://www.jfree.org/jcommon/index.html
   *
   * This library is free software; you can redistribute it and/or modify it 
   * under the terms of the GNU Lesser General Public License as published by 
   * the Free Software Foundation; either version 2.1 of the License, or 
   * (at your option) any later version.
   *
   * This library 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 Lesser General Public 
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
   * USA.  
   *
   * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
   * in the United States and other countries.]
   * 
   * ----------------------------
   * ModifiableConfiguration.java
   * ----------------------------
   * (C)opyright 2004, by Thomas Morgner and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   Thomas Morgner;
   *
   * $Id: ModifiableConfiguration.java,v 1.3 2005/10/18 13:14:12 mungady Exp $
   *
   * Changes
   * -------
   * 07-Jun-2004 : Added JCommon header (DG);
   *
   */
  
  package org.jfree.base.config;
  
  import java.util.Enumeration;
  import java.util.Iterator;
  
  import org.jfree.util.Configuration;
  
  /**
   * A modifiable configuration.
   *
   * @author Thomas Morgner
   */
  public interface ModifiableConfiguration extends Configuration {
   
      /**
       * Sets the value of a configuration property.
       * 
       * @param key  the property key.
       * @param value  the property value.
       */
      public void setConfigProperty(final String key, final String value);
    
      /**
       * Returns the configuration properties.
       * 
       * @return The configuration properties.
       */
      public Enumeration getConfigProperties();
    
      /**
       * Returns an iterator for the keys beginning with the specified prefix.
       * 
       * @param prefix  the prefix.
       * 
       * @return The iterator.
       */
      public Iterator findPropertyKeys(final String prefix);
  
  }
  