Is there a way not to persist a field with Siena

Question

I use siena with google engine. I have a model class with a field (named secret) that I don't want to be persisted. (I don't want the column to be created in the google datastore)

Something along the lines of

Class person {
   @Id 
   public Long id ; 

   public String name ; 

   @Ignore
   public String secret ;

}

The field secrethas to be public.

Do you have any idea to achieve that ?

score 5 · Accepted Answer · answered Jan 25 '13 at 13:31

5

You can use Java's transient keyword:

public transient String secret;

That should stop it from being persisted.

answered Jan 25 '13 at 13:31

David Lavender

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Damn, I shouldn't have looked it up and I would have beat you... +1! – 11684 Jan 25 '13 at 13:32
Too bad there is not something Siena specific. Because now I can't serialize the "secret" field either. After all sometimes you may want to read data from your filesystem and not persist all of it. Then again you can create DTO... – Name is carl Feb 20 '13 at 01:29
There is change request on the siena project to add the @Ignore annotation. https://github.com/mandubian/siena/pull/24 – Name is carl Feb 22 '13 at 10:39

Is there a way *not* to persist a field with Siena

1 Answers1

Is there a way not to persist a field with Siena