//package org.apache.commons.grant;
package org.apache.maven.app;

/*
 * $Header: /home/cvspublic/jakarta-commons-sandbox/grant/src/java/org/apache/commons/grant/PropsHandler.java,v 1.1.1.1 2002/06/19 15:42:35 werken Exp $
 * $Revision: 1.1.1.1 $
 * $Date: 2002/06/19 15:42:35 $
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

import java.util.Hashtable;

/** Interface for delegates supporting property management
 *  for a<code>GrantProject</code>.
 *
 *  @see GrantProject#setProperty
 *  @see GrantProject#setUserProperty
 *  @see GrantProject#getProperty
 *  @see GrantProject#getUserProperty
 *  @see GrantProject#getProperties
 *  @see GrantProject#getUserProperties
 *
 *  @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
 */
public interface PropsHandler {

    /** Set a property.
     *
     *  @param key The property key.
     *  @param value The value.
     */
    void setProperty(String key, String value);

    void setNewProperty(String name, String value);
    void setInheritedProperty(String name, String value);
    
    /** Set a user property.
     *
     *  @param key The user property key.
     *  @param value The value.
     */
    void setUserProperty(String key, String value);


    /** Retrieve a property.
     *
     *  @param key The property key.
     *
     *  @return The value.
     */
    String getProperty(String key);

    /** Retrieve a user property.
     *
     *  @param key The user property key.
     *
     *  @return The value.
     */
    String getUserProperty(String key);

    /** Retrieve a <code>Hashtable</code> of all properties.
     *
     *  @return A <code>Hashtable</code> of all properties.
     */
    Hashtable getProperties();

    /** Retrieve a <code>Hashtable</code> of all user properties.
     *
     *  @return A <code>Hashtable</code> of all user properties.
     */
    Hashtable getUserProperties();
}