You may want to give Ebean.createUpdate() a try. As the javadoc describes, this method accepts an ORM update string.
The orm update differs from the sql update in that it you can use the bean name and bean property names rather than table and column names.
For example:
Update<Customer> upd = Ebean.createUpdate(Customer.class, "DELETE Customer WHERE email=:email");
upd.set("email", "someone@somewhe.re");
return upd.execute();