Updated PersistenceManager as per @CyB3RC0nN0R 's request

src/main/java/envoy/server/database/PersistenceManager.java

@@ -23,25 +23,12 @@ public class PersistenceManager {
 	private EntityManager entityManager = Persistence.createEntityManagerFactory("envoy").createEntityManager();
 
 	/**
-	 *
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
-	public PersistenceManager() {
-		/*
-		 * // TODO TESTING
-		 * User user = new User(3, "t");
-		 * User user2 = new User(2, "w");
-		 * Message msg = new MessageBuilder(user.getId(), user2.getId()).build();
-		 * entityManager.getTransaction().begin();
-		 * entityManager.persist(user);
-		 * entityManager.persist(user2);
-		 * entityManager.persist(msg);
-		 * entityManager.getTransaction().commit();
-		 */ // TODO delete until here
-	}
+	public PersistenceManager() {}
 
 	/**
-	 * Adds a user to the database.
+	 * Adds a {@link User} to the database.
 	 *
 	 * @param User the {@link User} to add to the database
 	 * @since Envoy Server Standalone v0.1-alpha
@@ -49,29 +36,28 @@ public class PersistenceManager {
 	public void addUser(User User) { entityManager.persist(User); }
 
 	/**
-	 * Adds a message to the database.
+	 * Adds a {@link Message} to the database.
 	 *
 	 * @param message the {@link Message} to add to the database
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
-	public void addMessage(Message message) { entityManager.persist(message); }// TODO these functions or the one below?
+	public void addMessage(Message message) { entityManager.persist(message); }
 
 	/**
-	 * This is a delegate function for {@link EntityManager#persist} in order to add
-	 * an {@link User} / a {@link Message} into the database
+	 * Updates a {@link User} in the database
 	 *
-	 * @param obj the object to add to the database
+	 * @param user the {@link User} to add to the database
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
-	public void addObject(Object obj) { entityManager.persist(obj); }
+	public void updateUser(User user) { entityManager.unwrap(Session.class).merge(user); }
 
 	/**
-	 * Updates a row of database objects, either a Message or a User with new data.
+	 * Updates a {@link Message} in the database.
 	 *
-	 * @param obj the object to update (existing User/Message)
+	 * @param message the message to update
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
-	public void updateObject(Object obj) { entityManager.unwrap(Session.class).merge(obj); }
+	public void updateMessage(Message message) { entityManager.unwrap(Session.class).merge(message); }
 
 	/**
 	 * Searches for a user with a specific id.