title: Spring Boot. How to disable Initialization of JPA Conditionaliy
body: <p>I'm woundering if it's possible to disable the intialization of JPA Stack competelly.</p>
  
  <p>I some situation my application is executed in enviroment where database is not accessible. Application can survive this on application level. 
  But technically i get some exception on intialization of Data Source. </p>
  
  <ol>
  <li>there musst be some way to disable JPA intialization at all (not needed withoud db. By profile or someting like that.</li>
  <li>Or maby at least i can say Connection pool to not connect or somethinglike this. </li>
  <li>Other ideas?</li>
  </ol>