通过Java中的接口对2个共享类的继承？

Question

在我们的Java（Spring Boot）应用程序中，我们有一个基本请求类，如下所示：

@Data
public class BaseRequest {
    @NotNull
    private UUID uuid;
}

从此基类延伸以创建和更新的2个请求，如下所示：

@Data
public class CreateRequest extends BaseRequest {

    @NotEmpty
    private String apiKey;

    @NotEmpty
    private String locationId;    
}

@Data
public class UpdateRequest extends BaseRequest {

    private String apiKey;

    private String locationId;    
}

这两个类之间的唯一区别是强制性字段（需要在createrequest中，但在updaterequest中不是强制性

。

private void setRequest(SaveRequest request) {
    IntegrationRequest integrationRequest = new IntegrationRequest();
    integrationRequest.setApiKey(request.getApiKey());
    integrationRequest.setLocationId(request.getLocationId());

    // code omitted
}

的 此方法。但是我尝试通过传递另一个基类的 setRequest ，但由于某些未共享字段，它不起作用。使用接口，但是我真的很困惑我应该使用哪种方法来解决此问题

private void setRequest(UpdateRequest request) {
    IntegrationRequest integrationRequest = new IntegrationRequest();
    integrationRequest.setApiKey(request.getApiKey());
    integrationRequest.setLocationId(request.getLocationId());

    // code omitted
}

。

Answer 1

您可以做这样的事情：

public interface Request {
    String getApiKey();
    String getLocationId();
}

@Data
public class CreateRequest extends BaseRequest implements Request {
    @NotEmpty
    private String apiKey;
    @NotEmpty
    private String locationId;
}

@Data
public class UpdateRequest extends BaseRequest implements Request {
    private String apiKey;
    private String locationId;
}

private void setRequest(Request request) {
    CreateRequest integrationRequest = new CreateRequest();
    integrationRequest.setApiKey(request.getApiKey());
    integrationRequest.setLocationId(request.getLocationId());

    // code omitted
}