Hi,
I am working on the Java Annotation lab MutatorAnnotation.java exercises. I
have no clue of how the code in red could have any affect to setName method :
public class MutatorAnnotation {
private String name;
private int id;
/**
* Constructor
**/
public MutatorAnnotation() {
name = "Java Passion!";
}
public String getName() {
return name;
}
@Mutator(variable = "name")
public void setName(String name) {
this.name = name;
}
@Retention(RetentionPolicy.RUNTIME)
public @interface Mutator { // annotation definition
String variable();
}
public static void main(String[] args) {
// TODO code application logic here
MutatorAnnotation mutAnnot = new MutatorAnnotation(); // code I added
System.out.println("Name is : "+mutAnnot.getName());
Run result:
run:
Name is : Java Passion!
BUILD SUCCESSFUL (total time: 0 seconds)
The result display "Java Passion". In this case the Mutator annotation has no
impact to the setName method. Then what is the usage of have this method
annotated by the @Mutator annotation. Would like to see some code how @Mutator
annotation could apply to practical usage?
Thank you!
Regards,
Anthony
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