I'm not sure of your question.

Did you try to do that:

Session session = client.getSession("Administrator", "Administrator");
Documents docs = (Documents) session.newRequest("Document.Query").set(
           "query", "SELECT * FROM Document").execute();
for (Document doc : docs) {
    PropertyMap properties = doc.getProperties();
    PropertyMap languageMap = properties.getMap("dc:language");
    String languageValue = languageMap.getString("data");    
    // etc...
 }

client.shutdown();

Hi Thanks I tried the following doc.getString(“dc:language”) . That gave me the required value. Thanks for you answer as well that should work too.