title: What does the scope attribute from the action tag of the struts-config file mean?
body: <p>I'm working on a Struts application.</p>
  
  <p>In order to edit the <code>struts-config.xml</code> file, I think I have to add an attribute - <code>scope</code>, in the action tag. I'm not sure about its meaning, or its usage. </p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;action path="/WetsVpnSwapTraffic"
              type="com.kpn.bop.web.action.vpn.wets.WetsVpnSwapTraffic"
              scope="request"
              name="WetsVpnSwapTrafficForm"
              roles="bop_wetsvpn_migrate"
              validate="false"&gt;
          &lt;forward name="success" path="/WetsVpnSwapTrafficValidate.do"/&gt;
          &lt;forward name="failure" path="/WetsVpnList.do"/&gt;
  &lt;/action&gt;  
  </code></pre>
  
  <p>Can anyone explain me if I have to put this attribute? </p>