Sorry but I didn't get the point here.

Let's say I have two simple objects and I need to know if there is a difference between them and if there is I need to know where and I also need to know the previous value of that field and the new value.

Let's get this as an example:

Person person1 = new Person();
person1.setName("Freddy");
person1.setAge(22);
Person person2 = new Person();
person2.setName("Christoph");
person2.setAge(22);

What I want to achieve here is:

• it was changed: yes
• the attribute changed was "name"
• the previous value was "Freddy"
• the current value is "Christoph"

Any help on that?