title: Does vertex-centric indexes support string search predicates in JanusGraph?
body: <p>I want to index a JSON(string) as vertex-centric index. My use case is that I want to match regex predicates in this string. Will vertex-centric indexes support <strong><em>textRegex</em></strong></p>
  
  <p>I am following this link for checking string search in Janus: <a href="https://docs.janusgraph.org/index-backend/search-predicates/#text-predicate" rel="nofollow noreferrer">https://docs.janusgraph.org/index-backend/search-predicates/#text-predicate</a></p>
  
  <p>For example: If my string property is {"foo":"bar"}, I want to regex search for property "foo" in this string property.</p>