title: How to get properties of vertex or edge elements in Titan DB version 1.0.0
body: <p>In older version of <strong>Titan DB (ver 0.5.2)</strong> the <strong>TitanVertex</strong> and <strong>TitanEdge</strong> implement <strong>TitanElement</strong> interface that has method <code>getProperties(String key)</code> that I used to retrieve the element properties values. This method was removed in new version of Titan (I am using version 1.0.0). Instead of this method I found <code>valueOrNull(PropertyKey key)</code> that does the same thing but receives <strong>PropertyKey</strong> as parameter and not <strong>String</strong> as key name. </p>
  
  <p>What is the best way to retrieve the property value/values only using property key name as String object?</p>
  
  <p>Or is there simple way to get PropertyKey object from property key name as String? </p>