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/**
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Unpublished - rights reserved under the Copyright Laws of the United States.
 * Copyright � 2003 Sun Microsystems, Inc. All rights reserved.
 * Copyright � 2005 BEA Systems, Inc. All rights reserved.
 *
 * Use is subject to license terms.
 *
 * This distribution may include materials developed by third parties. 
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * Module Name   : JSIP Specification
 * File Name     : DateHeader.java
 * Author        : Phelim O'Doherty
 *
 *  HISTORY
 *  Version   Date      Author              Comments
 *  1.1     08/10/2002  Phelim O'Doherty    
 *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */
package android.javax.sip.header;

import java.util.*;

/**
 * The Date header field reflects the time when the request or response is
 * first sent. Retransmissions have the same Date header field value as the
 * original. The Date header field contains the date and time. Unlike
 * HTTP/1.1, SIP only supports the most recent 
 * RFC 1123 format for dates. 
 * SIP restricts the time zone in SIP-date to "GMT", while RFC 1123 allows any
 * time zone.
 * 

* The Date header field can be used by simple end systems without a * battery-backed clock to acquire a notion of current time. However, in its * GMT form, it requires clients to know their offset from GMT. *

* Example:
* Date: Sat, 13 Nov 2010 23:29:00 GMT * * @author BEA Systems, NIST * @version 1.2 */ public interface DateHeader extends Header { /** * Sets date of DateHeader. The date is repesented by the Calendar object. * * @param date the Calendar object date of this header. */ public void setDate(Calendar date); /** * Gets the date of DateHeader. The date is repesented by the Calender * object. * * @return the Calendar object representing the date of DateHeader */ public Calendar getDate(); /** * Name of DateHeader */ public final static String NAME = "Date"; }





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