title: Is it possible to map a map<String,List<Entity>> in JPA?
body: <p>I'm thinking if i use maps like <code>Map&lt;String,List&lt;Entity&gt;&gt;</code> or <code>Map&lt;Long,List&lt;Entity&gt;&gt;</code> it will help me with a few things, but I couldn't find any example to map that kind of map.</p>
  
  <p>My question is, is it possible to do that kind of mapping in JPA standards, and what kind of annotation I should use?</p>