peerviewelement.html

jxta的api库

  messages have several causes :
  
  <p/><ul>
      <li>An <CODE>IOException</CODE> means that the messenger cannot
      send the message and the messenger will accept no further messages
      to be sent.</li>

      <li>A <CODE>RuntimeException</CODE> mean that the message was
      not sent, but retries may or may not be possible based upon the
      status returned by <A HREF="../../../../../net/jxta/endpoint/Messenger.html#isClosed()"><CODE>Messenger.isClosed()</CODE></A>.</li>

      <li><code>null</code> means that the message was not sent, but may
      be retried. Usually the failure is due to local resource limits
      being exceeded. Attempts may be made to later resend the message,
      usually after waiting for congestion to clear.</li>
  </ul>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/jxta/endpoint/OutgoingMessageEventListener.html#messageSendFailed(net.jxta.endpoint.OutgoingMessageEvent)">messageSendFailed</A></CODE> in interface <CODE><A HREF="../../../../../net/jxta/endpoint/OutgoingMessageEventListener.html" title="interface in net.jxta.endpoint">OutgoingMessageEventListener</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="sendMessage(net.jxta.endpoint.Message, java.lang.String, java.lang.String)"><!-- --></A><H3>
sendMessage</H3>
<PRE>
public boolean <B>sendMessage</B>(<A HREF="../../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
                           java.lang.String&nbsp;sName,
                           java.lang.String&nbsp;sParam)</PRE>
<DL>
<DD>Send a message to the peer which is represented by the current
 PeerViewElement. A listener should be registered with the peer
 group's endpoint with the same service name and param on the
 receiving peer to receive the message, otherwise the message
 will be dropped.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>msg</CODE> - the message to send
<DT><B>Returns:</B><DD>true if the message was successfully handed off to the
 endpoint for delivery, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="getRdvAdvertisement()"><!-- --></A><H3>
getRdvAdvertisement</H3>
<PRE>
public <A HREF="../../../../../net/jxta/protocol/RdvAdvertisement.html" title="class in net.jxta.protocol">RdvAdvertisement</A> <B>getRdvAdvertisement</B>()</PRE>
<DL>
<DD>Get the encapsulated Peer Advertisement.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the Advertisement of the Peer represented by this
 object</DL>
</DD>
</DL>
<HR>

<A NAME="setRdvAdvertisement(net.jxta.protocol.RdvAdvertisement)"><!-- --></A><H3>
setRdvAdvertisement</H3>
<PRE>
public <A HREF="../../../../../net/jxta/protocol/RdvAdvertisement.html" title="class in net.jxta.protocol">RdvAdvertisement</A> <B>setRdvAdvertisement</B>(<A HREF="../../../../../net/jxta/protocol/RdvAdvertisement.html" title="class in net.jxta.protocol">RdvAdvertisement</A>&nbsp;adv)</PRE>
<DL>
<DD>Set the encapsulated Peer Advertisement.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>adv</CODE> - is the RdvAdvertisement to be set.
<DT><B>Returns:</B><DD>RdvAdvertisement the old Advertisement of the Peer represented by this
 object</DL>
</DD>
</DL>
<HR>

<A NAME="getSrcRouteAdvertisement()"><!-- --></A><H3>
getSrcRouteAdvertisement</H3>
<PRE>
public <A HREF="../../../../../net/jxta/protocol/RouteAdvertisement.html" title="class in net.jxta.protocol">RouteAdvertisement</A> <B>getSrcRouteAdvertisement</B>()</PRE>
<DL>
<DD>Get the encapsulated Src RouteAdv
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the Advertisement of the source Peer that sent this PVE</DL>
</DD>
</DL>
<HR>

<A NAME="setSrcRouteAdvertisement(net.jxta.protocol.RouteAdvertisement)"><!-- --></A><H3>
setSrcRouteAdvertisement</H3>
<PRE>
public <A HREF="../../../../../net/jxta/protocol/RouteAdvertisement.html" title="class in net.jxta.protocol">RouteAdvertisement</A> <B>setSrcRouteAdvertisement</B>(<A HREF="../../../../../net/jxta/protocol/RouteAdvertisement.html" title="class in net.jxta.protocol">RouteAdvertisement</A>&nbsp;adv)</PRE>
<DL>
<DD>Set the encapsulated source peer RouteAdvertisement.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>adv</CODE> - is the RdvAdvertisement to be set.
<DT><B>Returns:</B><DD>RouteAdvertisement the old Advertisement of the Peer represented by this
 object</DL>
</DD>
</DL>
<HR>

<A NAME="setConnectivity(boolean)"><!-- --></A><H3>
setConnectivity</H3>
<PRE>
protected void <B>setConnectivity</B>(boolean&nbsp;live)</PRE>
<DL>
<DD>Invoked to indicate whether the last connect request succeeded.
 We track the current dead-alive state and notify the peerview
 of all the transitions from alive to dead. If we're in the view
 that is; otherview, we keep it silent.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="isAlive()"><!-- --></A><H3>
isAlive</H3>
<PRE>
public boolean <B>isAlive</B>()</PRE>
<DL>
<DD>Return true if the remote peer is known to be alive, false
 otherwise.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="compareTo(java.lang.Object)"><!-- --></A><H3>
compareTo</H3>
<PRE>
public int <B>compareTo</B>(java.lang.Object&nbsp;other)</PRE>
<DL>
<DD>Allows Peer Advertisements to be sorted and ordered. Currently
 we just use the ordering function used by the String
 representation of the PeerID, but we could more sophisticated
 if needed.
 This should not be relied on for a PVE initialized with an endpoint
 address. We make sure we never stuff such a PVE in the peerview.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>compareTo</CODE> in interface <CODE>java.lang.Comparable</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;other)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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