/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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.
 *
 * Copyright (c) 2007 - 2009 Pentaho Corporation and Contributors.  All rights reserved.
 */

package org.pentaho.reporting.libraries.base.config;

import java.util.Enumeration;
import java.util.Iterator;

/**
 * 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);

}