DDD, Anti Corruption layer, how-to?

Question

At the moment, we have to build an application which is based on a legacy one. Code for that old application should be thrown away and rewritten, but as it usually goes - i

Answer 1

In my particular implementation, EmployeeAccessService is called by a Repository. It's really a facade into the Anti-corruption layer. It delegates to the EmployeeAccessAdapter. The adapter fetches an object from the legacy model (which it gets from EmployeeAccessFacade),then passes it to the EmployeeAccessTranslator to transform the object from the legacy model to the domain object in my application's model.

EmployeeAccessService

public Employee findEmployee(String empID){
    return adapter.findEmployee(empID);
}

EmployeeAccessAdapter

public Employee findEmployee(String empID){
    EmployeeAccessContainer container = facade.findEmployeeAccess(empID);
    return translator.translate(container);
}

EmployeeAccessTranslator

public Employee translate(EmployeeAccessContainer container){
    Employee emp = null;
    if (container != null) {
        employee = new Employee();
        employee.setEmpID(idPrefix + container.getEmployeeDTO().getEmpID());
        ...(more complex mappings)