java - 限制Java继承中重写方法的范围

Question

public abstract class SoftwareComponent {

    private Set<Information> generateInfo = new HashSet<Information>();
    private Set<Information>  consumeInfo = new HashSet<Information>();
    public Set<Infomation>  getGeneratedInfo() { ... }
    public Set<Information> getConsumedInfo()  {....}
}

public  class SensorDriver extends SoftwareComponent {

}

public  class Information { ... }

public class SensorMeasurement extends Information {   }

public class command extends Information {     }

上面提到的代码是我的程序结构。现在，情况是 Sensor Driver 继承了它的所有父类方法。我想限制传感器驱动程序中重写方法的范围。

限制是“Sensor driver”只能生成“Sensor Measurement”信息。“传感器驱动程序”不允许使用“命令”信息。

Answer 1

您可以使您的 SoftwareComponent 成为通用的，并使 Information 成为一个参数:

public abstract class SoftwareComponent<I extends Information> {

  private Set<I> generateInfo = new HashSet<I>();
  private Set<I> consumeInfo = new HashSet<I>();
  public Set<I> getGeneratedInfo() { ... }
  public Set<I> getConsumedInfo()  {....}
}

public class SensorDriver extends SoftwareComponent<SensorMeasurement> {
}