title: Implement parallel process in service activator
body: <p>In my spring integration application flow is like </p>
  
  <p>Splitter--routter--Service Activator(2 Activators) -- Aggregator</p>
  
  <p>In this ,Will my 2 aggregators work parallelly??
  My configuration file is like </p>
  
  <pre><code>       &lt;!-- splitter config --&gt;
   &lt;int:splitter input-channel="reqchannel" ref="splitter" method="doSplit" output-channel="routerinput"/&gt;
   &lt;!-- router config --&gt;
    &lt;int:router input-channel="routerinput" expression="payload.isForAct1 ? 'activator1' : 'activator2'"/&gt;
    &lt;!-- service activator 1 cinfig--&gt;
    &lt;int:service-activator input-channel="activator1" ref="processActivator"
                       method="doProcess()" output-channel="processedChannal"/&gt;
   &lt;!-- service activator 2 cinfig --&gt;
    &lt;int:service-activator input-channel="activator2" ref="processActivator"
                       method="doProcess()" output-channel="processedChannal"/&gt;
   &lt;!-- aggregator config  --&gt;
    &lt;int:aggregator input-channel="processedChannal" ref="agrtr"   method="makeAggregate" /&gt; 
  </code></pre>
  
  <p>Do i need to do any additional configuration to ececute both service activators parallalley??</p>
  
  <p>Please help..</p>