title: how to replace xml element value in mule
body: <pre><code>&lt;healthcare&gt;
      &lt;plans&gt;
          &lt;plan1&gt;
              &lt;planid&gt;100&lt;/planid&gt;
              &lt;planname&gt;medical&lt;/planname&gt;
              &lt;desc&gt;medical&lt;/desc&gt;
              &lt;offerprice&gt;500&lt;/offerprice&gt;
              &lt;area&gt;texas&lt;/area&gt;
          &lt;/plan1&gt;
          &lt;plan2&gt;
              &lt;planid&gt;101&lt;/planid&gt;
              &lt;planname&gt;dental&lt;/planname&gt;
              &lt;desc&gt;dental&lt;/desc&gt;
              &lt;offerprice&gt;1000&lt;/offerprice&gt;
              &lt;area&gt;texas&lt;/area&gt;
          &lt;/plan2&gt;
      &lt;/plans&gt;
  &lt;/healthcare&gt;
  
  
  &lt;splitter evaluator="xpath" expression="/healthcare/plans" doc:name="Splitter"/&gt; 
  &lt;transformer ref="domToXml" doc:name="Transformer Reference"/&gt; 
  &lt;logger level="INFO" doc:name="Logger" message=" plans   detils...#[message.payload]" /&gt;
  </code></pre>
  
  <p>i have input xml data as above. I want to replace offerprice value from the above xml data . I tried various ways. anyone can shed the light for my requirement in mule</p>
  
  <p>in my requiremnet , hit external api based on the result value , <strong>I need to change the offerprice value in the input xml .</strong></p>
  
  <p>anyone help is highly valuable.I need this immediately in my work .please shed light</p>