message.html

jxta的api库

      <ul>
          <li>An <CODE>IOException</CODE> means that the message
          was not sent and this messanger cannot be used to send
          subsequent messages. Instances of
          <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>A return result of <code>false</code> indicates that the
          message was not accepted to be sent. Usually this is due to
          local resource limits being reached. Attempts may be made to
          later resend the message, usually after waiting for congestion
          to clear.</li>
      </ul>
  </li>

  <li>Synchronous Messengers:
      <ul>
          <li>A return result of <code>true</code> indicates that the
          message was successfully sent. <b>It does not generally imply
          that the destination will successfully receive the message.</b></li>
      </ul>
  </li>

  <li>Asynchronous Messengers:
      <ul>
          <li>A return result of <code>true</code> indicates that the message
          was accepted to be sent. <b>It does not imply that the message
          will be sent or that the destination will receive the message.</b>
          There will be no notification of any errors in sending the
          message.</li>
      </ul></li>
  </ul></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B>CrossGroupMessenger.</B><B><A HREF="../../../../net/jxta/impl/endpoint/CrossGroupMessenger.html#sendMessage(net.jxta.endpoint.Message, java.lang.String, java.lang.String, net.jxta.endpoint.OutgoingMessageEventListener)">sendMessage</A></B>(<A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
            java.lang.String&nbsp;service,
            java.lang.String&nbsp;serviceParam,
            <A HREF="../../../../net/jxta/endpoint/OutgoingMessageEventListener.html" title="interface in net.jxta.endpoint">OutgoingMessageEventListener</A>&nbsp;listener)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sends a message to the destination. The message will be sent to the
  location specified by the destination endpoint address. The destination
  address will be modified to include the provided optional service name
  and service parameter.

  <p/><b>WARNING:</b> The Message object should not be reused or modified
  until the sendMessage has completed. Concurrent modification of messages
  while a messenger is sending a message will produce incorrect and
  unpredictable results. Messages should either be cloned before sending
  or not modified until the sendMessage result is returned.

  <p/>Error Handling:

  <ul>
  <li>Common Aspects:
      <ul>
          <li>Instances of <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>Notification of the final state of the message will be
          returned via the optional
          <A HREF="../../../../net/jxta/endpoint/OutgoingMessageEventListener.html" title="interface in net.jxta.endpoint"><CODE>listener</CODE></A>.</li>
      </ul></li>

  <li>Synchronous Messengers:
      <ul>
          <li>The listener will always be called before
          <code>sendMessage</code> returns.</li>
      </ul>
  </li>
  </ul></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B>AdaptorBlockingMessenger.</B><B><A HREF="../../../../net/jxta/impl/endpoint/AdaptorBlockingMessenger.html#sendMessage(net.jxta.endpoint.Message, java.lang.String, java.lang.String)">sendMessage</A></B>(<A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
            java.lang.String&nbsp;destService,
            java.lang.String&nbsp;destServiceParam)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sends a message to the destination. The message will be sent to the
  location specified by the destination endpoint address. The destination
  address will be modified to include the provided optional service name
  and service parameter.

  <p/><b>WARNING:</b> The Message object should not be reused or modified
  until <code>sendMessage</code> has completed. Concurrent modification of
  a message while a messenger is sending the message will produce
  incorrect and unpredictable results. For asynchronous messengers this 
  method provides no notification of message send completion thus the
  message should <b>never</b> be reused. It is reccommended that a clone
  of the message be provided to send message:

  <p/><code><pre>
      messenger.sendMessage( (Message) myMessage.clone() );
  </pre></code>

  <p/>Error Handling:

  <ul>
  <li>Common Aspects:
      <ul>
          <li>An <CODE>IOException</CODE> means that the message
          was not sent and this messanger cannot be used to send
          subsequent messages. Instances of
          <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>A return result of <code>false</code> indicates that the
          message was not accepted to be sent. Usually this is due to
          local resource limits being reached. Attempts may be made to
          later resend the message, usually after waiting for congestion
          to clear.</li>
      </ul>
  </li>

  <li>Synchronous Messengers:
      <ul>
          <li>A return result of <code>true</code> indicates that the
          message was successfully sent. <b>It does not generally imply
          that the destination will successfully receive the message.</b></li>
      </ul>
  </li>

  <li>Asynchronous Messengers:
      <ul>
          <li>A return result of <code>true</code> indicates that the message
          was accepted to be sent. <b>It does not imply that the message
          will be sent or that the destination will receive the message.</b>
          There will be no notification of any errors in sending the
          message.</li>
      </ul></li>
  </ul>

 <p/>Implement a blocking sendMessage on top of the wrapped messenger's
 listener-style call, which may or may not be synchronous; we do not care.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B>AdaptorNonBlockingMessenger.</B><B><A HREF="../../../../net/jxta/impl/endpoint/AdaptorNonBlockingMessenger.html#sendMessage(net.jxta.endpoint.Message, java.lang.String, java.lang.String, net.jxta.endpoint.OutgoingMessageEventListener)">sendMessage</A></B>(<A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
            java.lang.String&nbsp;destService,
            java.lang.String&nbsp;destServiceParam,
            <A HREF="../../../../net/jxta/endpoint/OutgoingMessageEventListener.html" title="interface in net.jxta.endpoint">OutgoingMessageEventListener</A>&nbsp;listener)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sends a message to the destination. The message will be sent to the
  location specified by the destination endpoint address. The destination
  address will be modified to include the provided optional service name
  and service parameter.

  <p/><b>WARNING:</b> The Message object should not be reused or modified
  until the sendMessage has completed. Concurrent modification of messages
  while a messenger is sending a message will produce incorrect and
  unpredictable results. Messages should either be cloned before sending
  or not modified until the sendMessage result is returned.

  <p/>Error Handling:

  <ul>
  <li>Common Aspects:
      <ul>
          <li>Instances of <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>Notification of the final state of the message will be
          returned via the optional
          <A HREF="../../../../net/jxta/endpoint/OutgoingMessageEventListener.html" title="interface in net.jxta.endpoint"><CODE>listener</CODE></A>.</li>
      </ul></li>

  <li>Synchronous Messengers:
      <ul>
          <li>The listener will always be called before
          <code>sendMessage</code> returns.</li>
      </ul>
  </li>
  </ul>

 <p/>We implement a local queue and thread to hide the synchronousness of
 the wrapped messenger. </TD>
</TR>
</TABLE>
&nbsp;
<P>

<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TD COLSPAN=2>Constructors in <A HREF="../../../../net/jxta/impl/endpoint/package-summary.html">net.jxta.impl.endpoint</A> with parameters of type <A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../net/jxta/impl/endpoint/WireFormatMessageBinary.binaryMessageProxy.html#WireFormatMessageBinary.binaryMessageProxy(net.jxta.endpoint.Message, net.jxta.document.MimeMediaType)">WireFormatMessageBinary.binaryMessageProxy</A></B>(<A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
                                           <A HREF="../../../../net/jxta/document/MimeMediaType.html" title="class in net.jxta.document">MimeMediaType</A>&nbsp;type)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../net/jxta/impl/endpoint/QuotaIncomingMessageListener.MessageFromSource.html#QuotaIncomingMessageListener.MessageFromSource(net.jxta.endpoint.Message, net.jxta.endpoint.EndpointAddress, net.jxta.endpoint.EndpointAddress, net.jxta.impl.util.ResourceAccount, long, long)">QuotaIncomingMessageListener.MessageFromSource</A></B>(<A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
                                               <A HREF="../../../../net/jxta/endpoint/EndpointAddress.html" title="class in net.jxta.endpoint">EndpointAddress</A>&nbsp;srcAddress,
                                               <A HREF="../../../../net/jxta/endpoint/EndpointAddress.html" title="class in net.jxta.endpoint">EndpointAddress</A>&nbsp;destAddress,
                                               <A HREF="../../../../net/jxta/impl/util/ResourceAccount.html" title="interface in net.jxta.impl.util">ResourceAccount</A>&nbsp;src,
                                               long&nbsp;timeReceived,
                                               long&nbsp;size)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../net/jxta/impl/endpoint/JxtaMessageMessageElement.html#JxtaMessageMessageElement(java.lang.String, net.jxta.document.MimeMediaType, net.jxta.endpoint.Message, net.jxta.endpoint.MessageElement)">JxtaMessageMessageElement</A></B>(java.lang.String&nbsp;name,
                          <A HREF="../../../../net/jxta/document/MimeMediaType.html" title="class in net.jxta.document">MimeMediaType</A>&nbsp;type,
                          <A HREF="../../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A>&nbsp;msg,
                          <A HREF="../../../../net/jxta/endpoint/MessageElement.html"