my colleague offered a solution, but it wasn"t quite what I wanted, so I came to ask
the method that my colleague told me
public static <DTO, VO> VO getVO(DTO dto, Function<DTO, VO> function){
return function.apply(dto);
}
:
getVO(new TestDTO(),TestVO::new);
the colleague"s method is probably the most perfect; there is no need to modify the VO class and the DTO class, but I have a bit of an axis. I want to know another way, and I don"t have the heart to keep pestering my colleagues to ask,
.the method I want:
public static <DTO,VO>VO getVO(DTO dto){
return new VO(dto);
}
:
getVO(new TestDTO());
VO class:
public class TestVO {
private String name;
public TestVO(TestDTO dto) {
this.name = dto.getName();
}
}
DTO class
public class TestDTO {
private String name;
public String getName() {
return name;
}
}
so I would like to ask you, in the way I want, how to modify the code to achieve it?
public static <DTO,VO>VO getVO(DTO dto){
return new VO(dto);
}
static check error:
Type parameter "VO" cannot be instantiated directly
the way I want to use it is to make a static class accept a generic type, and then call the getVO method,
public class VOUtil<VO>{
public static <DTO>VO getVO(DTO dto){
return new VO(dto);
}
} is used as follows:
VOUtil<TestVO>.getVO(dto);is this all right?
