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RSeqHeader (JSIP API v1.2)
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<b>JSIP API v1.2<br><font size=-1>November 2006</font></b></EM>
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javax.sip.header</FONT>
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Interface RSeqHeader</H2>
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<DT><B>All Superinterfaces:</B> <DD>java.lang.Cloneable, <A HREF="../../../javax/sip/header/Header.html" title="interface in javax.sip.header">Header</A>, java.io.Serializable</DD>
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<DT><PRE>public interface <B>RSeqHeader</B><DT>extends <A HREF="../../../javax/sip/header/Header.html" title="interface in javax.sip.header">Header</A></DL>
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This interface represents the RSeq header, as defined by <a href = "http://www.ietf.org/rfc/rfc3262.txt">RFC3262</a>, this header is not part of RFC3261. <p> The RSeq header is used in provisional responses in order to transmit them reliably. It contains a single numeric value from 1 to 2**32-1. The value of the RSeq in each subsequent reliable provisional response for the same request MUST be greater by exactly one. RSeq numbers MUST NOT wrap around. Because the initial one is chosen to be less than 2**31 - 1, but the maximum is 2**32 - 1, there can be up to 2**31 reliable provisional responses per request, which is more than sufficient. As the RSeq numbering space is within a single transaction. This means that provisional responses for different requests MAY use the same values for the RSeq number. <p> A server must ignore Headers that it does not understand. A proxy must not remove or modify Headers that it does not understand.
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<DD>BEA Systems, NIST</DD>
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<CODE>static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/sip/header/RSeqHeader.html#NAME">NAME</A></B></CODE>
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Name of RSeqHeader</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/sip/header/RSeqHeader.html#getSequenceNumber()">getSequenceNumber</A></B>()</CODE>
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Gets the sequence number of this RSeqHeader.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/sip/header/RSeqHeader.html#setSequenceNumber(int)">setSequenceNumber</A></B>(int sequenceNumber)</CODE>
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Sets the sequence number value of the RSeqHeader of the provisional response.</TD>
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<TH ALIGN="left"><B>Methods inherited from interface javax.sip.header.<A HREF="../../../javax/sip/header/Header.html" title="interface in javax.sip.header">Header</A></B></TH>
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<A NAME="NAME"><!-- --></A><H3>
NAME</H3>
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static final java.lang.String <B>NAME</B></PRE>
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<DD>Name of RSeqHeader
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<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.sip.header.RSeqHeader.NAME">Constant Field Values</A></DL>
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<A NAME="setSequenceNumber(int)"><!-- --></A><H3>
setSequenceNumber</H3>
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void <B>setSequenceNumber</B>(int sequenceNumber)
throws <A HREF="../../../javax/sip/InvalidArgumentException.html" title="class in javax.sip">InvalidArgumentException</A></PRE>
<DL>
<DD>Sets the sequence number value of the RSeqHeader of the provisional response. The sequence number MUST be expressible as a 32-bit unsigned integer and MUST be less than 2**31.
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<DT><B>Parameters:</B><DD><CODE>sequenceNumber</CODE> - - the new Sequence number of this RSeqHeader
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/sip/InvalidArgumentException.html" title="class in javax.sip">InvalidArgumentException</A></CODE> - if supplied value is less than zero.</DL>
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<A NAME="getSequenceNumber()"><!-- --></A><H3>
getSequenceNumber</H3>
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int <B>getSequenceNumber</B>()</PRE>
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<DD>Gets the sequence number of this RSeqHeader.
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<DT><B>Returns:</B><DD>the integer value of the Sequence number of the RSeqHeader</DL>
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<b>JSIP API v1.2<br><font size=-1>November 2006</font></b></EM>
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<center>If you have any comments, please mail them to <a href=mailto:JAIN-SIP-INTEREST@java.sun.com>JAIN-SIP-INTEREST@java.sun.com</a> after subscribing at <a href=http://archives.java.sun.com>http://archives.java.sun.com</a><br><a href=../../../copyright.html>Copyright</a> - 2006 BEA Systems and Sun Microsystems</center>
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