//GeoResult 类
public class GeoResult<T> implements Serializable {
private static final long serialVersionUID = 1637452570977581370L;
private final T content; private final Distance distance;
public GeoResult(T content, Distance distance) {
Assert.notNull(content, "Content must not be null!");
Assert.notNull(distance, "Distance must not be null!");
this.content = content;
this.distance = distance;
}
}
//通过继承扩展GeoResult类
//通过继承扩展GeoResult类
public class GeoExtendResult
public GeoExtendResult(T content, Distance distance) {
super(content, distance);
}
}
//这是正确的
List
//报类型不匹配
List
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