Setting field name as URL for proper getter and setter gives Checkstyle error

Question

may be a stupid question, but just want to ask. I have a Java class with some fields and it's getters and setters.

public class Parameters {

    private String URL;

    public String getURL() {
        return URL;
    }

    public void setURL(String uRL) {
        URL = uRL;
    }
}

Checkstyle will give error as

Name 'URL' must match pattern '^[a-z][a-zA-Z0-9]*$'.

So I changed to url and generated getters and setters with Eclipse.

public class Parameters {

    private String url;

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }
}

I want the method name to be getURL and setURL. Is it better I change the method names manually or is there any other way?

NB : In case I have to search for methods based on field names using

java.beans.BeanInfo
java.beans.IntrospectionException
java.beans.Introspector
java.beans.PropertyDescriptor

for url, it will search for only getUrl and setUrl.

Answer 1

You should write getters and setters. Or better - let your IDE generate them automatically. Otherwise you break the encapsulation.

Optionally you can use http://projectlombok.org/ and write it like this using annotations:

@Getter @Setter
private String name;

The code generation is done compile time.

Have a look at This site

Edit:-

example:

public class Test {

protected double WIDTH;
public double getWidTh() {
  return WIDTH;
}
public void setWidTh(double wIDTH) {
  WIDTH = wIDTH;
}
public static void main(String []args){
  Test t = new Test();
  t.setWidTh(2);
  Object c = t;
  Class klazz = c.getClass();
  try {
    for (PropertyDescriptor propertyDescriptor : Introspector
    .getBeanInfo(klazz).getPropertyDescriptors()) {
      Method m = propertyDescriptor.getReadMethod();
      if (m != null)
        System.out.println(m.invoke(c));
      }
  } catch (IllegalAccessException e) {
      e.printStackTrace();
} catch (IllegalArgumentException e) {
    e.printStackTrace();
} catch (InvocationTargetException e) {
    e.printStackTrace();
} catch (IntrospectionException e) {
    e.printStackTrace();
}
}
}