AddUser.java

...

// Create a factory, and an instance of EntityStore
EntityStoreFactory factory = new CassandraEntityStoreFactory("127.0.0.1", 9042, ConsistencyLevel.QUORUM);
EntityStore store = factory.createEntityStore();

// Create a new user
User peter = new User("Peter", "Griffin", "[email protected]");

store.create(peter);
...

// Read a user
Optional<User> result = store.read(User.class, pID);

if (result.isPresent()) {
    User p = result.get();

    p.setEmailAddress("[email protected]");

    // Update
    store.update(p);
}