title: How get NumberExpression<Integer> result using Spring JPA Data?
body: <p>I used Spring JPA Data + queryDSL.</p>
  
  <p>It's great solution. but I have one question now.</p>
  
  <p>if I want to execute this query.</p>
  
  <pre><code>select sum(point) from users where userLevel = 2;</code></pre>
  
  <p>I have know how execute using queryDSL fro this query. But I don't know how execute this query using queryDSL and QueryDslPredicateExecutor. </p>
  
  <p>How I execute this query using QueryDslPredicateExecutor? Is it imposible now? Either, there is another way to execute this query using Spring JPA another interfaces?</p>