datagramsocketimpl.html

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protected <A HREF="../../java/io/FileDescriptor.html">FileDescriptor</A> <B>fd</B></PRE>
<DL>
<DD>The file descriptor object.</DL>

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<A NAME="DatagramSocketImpl()"><!-- --></A><H3>
DatagramSocketImpl</H3>
<PRE>
public <B>DatagramSocketImpl</B>()</PRE>
<DL>
</DL>

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<A NAME="create()"><!-- --></A><H3>
create</H3>
<PRE>
protected abstract void <B>create</B>()
                        throws <A HREF="../../java/net/SocketException.html">SocketException</A></PRE>
<DL>
<DD>Creates a datagram socket.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../java/net/SocketException.html">SocketException</A></CODE> - if there is an error in the 
 underlying protocol, such as a TCP error.</DL>
</DD>
</DL>
<HR>

<A NAME="bind(int, java.net.InetAddress)"><!-- --></A><H3>
bind</H3>
<PRE>
protected abstract void <B>bind</B>(int&nbsp;lport,
                             <A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;laddr)
                      throws <A HREF="../../java/net/SocketException.html">SocketException</A></PRE>
<DL>
<DD>Binds a datagram socket to a local port and address.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>lport</CODE> - the local port<DD><CODE>laddr</CODE> - the local address<DT><B>Throws:</B><DD><CODE><A HREF="../../java/net/SocketException.html">SocketException</A></CODE> - if there is an error in the
 underlying protocol, such as a TCP error.</DL>
</DD>
</DL>
<HR>

<A NAME="send(java.net.DatagramPacket)"><!-- --></A><H3>
send</H3>
<PRE>
protected abstract void <B>send</B>(<A HREF="../../java/net/DatagramPacket.html">DatagramPacket</A>&nbsp;p)
                      throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Sends a datagram packet. The packet contains the data and the
 destination address to send the packet to.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>p</CODE> - the packet to be sent.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs while sending the 
 datagram packet.</DL>
</DD>
</DL>
<HR>

<A NAME="peek(java.net.InetAddress)"><!-- --></A><H3>
peek</H3>
<PRE>
protected abstract int <B>peek</B>(<A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;i)
                     throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Peek at the packet to see who it is from.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>i</CODE> - an InetAddress object<DT><B>Returns:</B><DD>the address which the packet came from.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs</DL>
</DD>
</DL>
<HR>

<A NAME="receive(java.net.DatagramPacket)"><!-- --></A><H3>
receive</H3>
<PRE>
protected abstract void <B>receive</B>(<A HREF="../../java/net/DatagramPacket.html">DatagramPacket</A>&nbsp;p)
                         throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Receive the datagram packet.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>p</CODE> - the Packet Received.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs
 while receiving the datagram packet.</DL>
</DD>
</DL>
<HR>

<A NAME="setTTL(byte)"><!-- --></A><H3>
setTTL</H3>
<PRE>
protected abstract void <B>setTTL</B>(byte&nbsp;ttl)
                        throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>use setTimeToLive instead.</I>
<P>
<DD>Set the TTL (time-to-live) option.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>ttl</CODE> - a byte specifying the TTL value<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs while setting
 the time-to-live option.<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramSocketImpl.html#getTTL()"><CODE>getTTL()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getTTL()"><!-- --></A><H3>
getTTL</H3>
<PRE>
protected abstract byte <B>getTTL</B>()
                        throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>use getTimeToLive instead.</I>
<P>
<DD>Retrieve the TTL (time-to-live) option.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a byte representing the TTL value<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs
 while retrieving the time-to-live option<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramSocketImpl.html#setTTL(byte)"><CODE>setTTL(byte)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setTimeToLive(int)"><!-- --></A><H3>
setTimeToLive</H3>
<PRE>
protected abstract void <B>setTimeToLive</B>(int&nbsp;ttl)
                               throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Set the TTL (time-to-live) option.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>ttl</CODE> - an <tt>int</tt> specifying the time-to-live value<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs
 while setting the time-to-live option.<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramSocketImpl.html#getTimeToLive()"><CODE>getTimeToLive()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getTimeToLive()"><!-- --></A><H3>
getTimeToLive</H3>
<PRE>
protected abstract int <B>getTimeToLive</B>()
                              throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Retrieve the TTL (time-to-live) option.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an <tt>int</tt> representing the time-to-live value<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs
 while retrieving the time-to-live option<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramSocketImpl.html#setTimeToLive(int)"><CODE>setTimeToLive(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="join(java.net.InetAddress)"><!-- --></A><H3>
join</H3>
<PRE>
protected abstract void <B>join</B>(<A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;inetaddr)
                      throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Join the multicast group.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inetaddr</CODE> - multicast address to join.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs
 while joining the multicast group.</DL>
</DD>
</DL>
<HR>

<A NAME="leave(java.net.InetAddress)"><!-- --></A><H3>
leave</H3>
<PRE>
protected abstract void <B>leave</B>(<A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;inetaddr)
                       throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Leave the multicast group.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inetaddr</CODE> - multicast address to leave.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O exception occurs
 while leaving the multicast group.</DL>
</DD>
</DL>
<HR>

<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
protected abstract void <B>close</B>()</PRE>
<DL>
<DD>Close the socket.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getLocalPort()"><!-- --></A><H3>
getLocalPort</H3>
<PRE>
protected int <B>getLocalPort</B>()</PRE>
<DL>
<DD>Gets the local port.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an <tt>int</tt> representing the local port value</DL>
</DD>
</DL>
<HR>

<A NAME="getFileDescriptor()"><!-- --></A><H3>
getFileDescriptor</H3>
<PRE>
protected <A HREF="../../java/io/FileDescriptor.html">FileDescriptor</A> <B>getFileDescriptor</B>()</PRE>
<DL>
<DD>Gets the datagram socket file descriptor.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a <tt>FileDescriptor</tt> object representing the datagram socket
 file descriptor</DL>
</DD>
</DL>
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