title: How to prevent @PostConstruct from being called on postback
body: <p>When the page loads for the first time, the <code>@PostConstruct</code> is called, but when I perform a postback on this page, the <code>@PostConstruct</code> is called again. </p>
  
  <p>How can I make it to run only on the initial request and not on every postback?</p>
  
  <pre><code>@PostContruct
  public void init() {
      // charge combos....
  }
  
  public void submit() { 
      // action 
  }
  </code></pre>