Annotation example

FooBar.java

package com.example;

public FooBar { 
 
  @WiredMessage(mapping="BUTTONS-FOO")
  private String foo = "foo";
  
  // clear selected button label
  @WiredMessage(mapping="BUTTONS-BAR")
  private String bar = "bar";
  
}

Main.java

package com.example;

public class Main {
  
  public static void main(String[] args) {
    FooBar foobar = new FooBar();
    TranslationSupport.processWiredMessages(foobar, foobar.getClass());
  }
  
}

TranslationSupport.java

/**
 * A helper class that performs update of tests if they are customized by Message Models.
 */
public class TranslationSupport 
{
    /**
     * Process all fields annotated with @link {@link WiredMessage} annotation
     * and try to set the field with related message.
     * @param translatableTactic
     * @param instance
     * @param clazz
     */
    public static void processWiredMessages(final Object instance, 
            final Class<?> clazz)
    {
        final Field[] fields = clazz.getDeclaredFields();

        for (Field f : fields)
        {
            if (f.isAnnotationPresent(WiredMessage.class))
            {
                final WiredMessage wm = f.getAnnotation(WiredMessage.class);
                String value = "some value";

                try
                {
                    if (value != null)
                    {
                        f.setAccessible(true);
                        f.set(instance, value);
                        f.setAccessible(false);
                    }
                }
                catch (Exception e)
                {
                    e.printStackTrace();
                }
            }
        }
    }

WiredMessage.java

package com.example;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface WiredMessage
{
  String mapping();
}