Difference between detached entity and new entity JPA

[Oscar Calderon]

Hi to all, this is my first post here (and hope not the last) and i have a question. I'm a newbie in ORMs and i'm working on a JPA project using Hibernate implementation so i decide to look for some documentation. JAVA official site documentation about JPA is very understandable but there's something that i don't understand. I've googled about it but i couldn't find anything concret.

My question is: What's the difference between detached entity and new entity?

The next paragraph is from the java tutorial:

You manage entity instances by invoking operations on the entity by means of an EntityManager instance. 
Entity instances are in one of four states: new, managed, detached, or removed.
----New entity instances have no persistent identity and are not yet associated with a persistence context.
Managed entity instances have a persistent identity and are associated with a persistence context.
----Detached entity instances have a persistent identify and are not currently associated with a persistence context.
Removed entity instances have a persistent identity, are associated with a persistent context, and are scheduled 
for removal from the data store.

I understand that a new entity is when i create and instanciate a new object, for example:

  DspStore objEntity = new DspStore();
  objEntity.setName("Some name");
  objEntity.setAddress("Some address");

But what's a detached object?

Regards.

[Jeanne Boyarsky]

A new entity exists in Java, but does not exist in the database. A detached entity exists in both Java and the database. It's just they don't know about changes to each other.

[Oscar Calderon]

Ohh thanks, that clears me a bunch of things about the tutorial.