Can you post the code that you're using to re-persist the updated HashMap?
- Jason
On Thu, Oct 29, 2009 at 6:07 AM, barak <barak.ya...@gmail.com> wrote:
>
> Thanks, did that and the map is indeed serialized now. But now, the
> enitity is fetched, seems like the state is not always kept.
>
> For example, I would like to store some attribute from an HttpSession
> using the UserStats instance. Every time a user in a session press
> some button, a instance is fetched (using the session id as an
> identifier) and update a counter in the HashMap. The problem I faced
> is even that the object is found by the JDO, the counter updated and
> the object persisted again, next fetch does not return the instance
> with the updated counter. Can you help please debugging this?
>
> This is the data object:
>
> @PersistenceCapable(identityType = IdentityType.APPLICATION)
> public class UserStats
> {
> @PrimaryKey
> @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
> private Key key;
>
> @Persistent
> private String id;
>
> @Persistent
> private Long time;
>
> @Persistent( serialized ="true" )
> private HashMap<String, Integer> queries;
>
> public UserStats( String id, Long time )
> {
> this.id = id;
>
> this.time = time;
>
> queries = new HashMap<String, Integer>();
> }
>
> public Key getKey()
> {
> return key;
> }
>
> public String getId()
> {
> return id;
> }
>
> public void setId( String id )
> {
> this.id = id;
> }
>
> public Long getTime()
> {
> return time;
> }
>
> public void setTime( Long time )
> {
> this.time = time;
> }
>
> public HashMap<String, Integer> getQueries()
> {
> return queries;
> }
>
> public void setQueries( HashMap<String, Integer> queries )
> {
> this.queries = queries;
> }
> }
>
> On Oct 29, 10:38 am, Patrizio Munzi <patrizio.mu...@eris4.com> wrote:
> > HashMap isn't supported as a persistable type.
> > The only way you've got to persist it is serialize it:
> http://gae-java-persistence.blogspot.com/2009/10/serialized-fields.html
> > 1KViewDownload
> >
>
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