// find a customer using their Id
Customer customer = Ebean.find(Customer.class, 7);

// find all customers
List<Customer> list = Ebean.find(Customer.class).findList();

// find customers with names starting with Rob%
List<Customer> customers = 
    Ebean.find(Customer.class)
        .where().startsWith("name","Rob")
        .findList();

// find a customer using their Id
Customer customer = Ebean.find(Customer.class, 7);
customer.setName("Cool Customer");

// save will update the customer
Ebean.save(customer);

Customer newCust = new Customer();
newCust.setName("Super Cust");
...

// save will insert the new customer
Ebean.save(newCust);