Its not just BlobKey. Its also Key and every c om.google.appengine.api.datastore.* type.
David C blogged his experience with this situation http://turbomanage.wordpress.com/2009/10/15/gwt-gae-and-the-balm-of-gilead/ This is a comparison between the various technologies. http://stackoverflow.com/questions/2394280/looking-for-opinions-on-using-objectify-appengine-instead-of-jdo-in-gae-j On Mon, Dec 20, 2010 at 1:09 PM, Ahmed Shoeib <[email protected] > wrote: > the Error in using BlobKey that want to import com.google.appengine > > how can i solve it ? > > On Dec 20, 10:50 pm, "A. Stevko" <[email protected]> wrote: > > The reason your class instances are not available outside of the app > engine > > jvm is that they have been altered/instrumented by the persistence > manager. > > See step 3 of this tutorialhttp:// > www.datanucleus.org/products/accessplatform_1_0/guides/jdo/tut... > > <http://www.datanucleus.org/products/accessplatform_1_0/guides/jdo/tut.. > .> > > There are several approaches to designing around this requirement. > > For pure java - create Data Transfer Objects that match your persistent > > classses. I do this because it provides fine control of the externally > > visible model and not expose the entire internal model. > > Another approach is to use Objectifyhttp:// > code.google.com/p/objectify-appengine/ > > Other people like Gileadhttp://sourceforge.net/projects/gilead/ > > > > On Mon, Dec 20, 2010 at 12:29 AM, Ahmed Shoeib < > > > > [email protected]> wrote: > > > now i want to use this bean class outside server package > > > but i face problem during compilation with ( com.google.appengine ) > > > that can't be resolved. > > > > > @PersistenceCapable(identityType = IdentityType.APPLICATION, > > > detachable = "true") > > > public class HTNews { > > > > > @PrimaryKey > > > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > > > private Key id; > > > @Persistent > > > private String name; > > > @Persistent > > > private String linkUrl; > > > @Persistent > > > private BlobKey imageKey; > > > ..... > > > > > is there any way to do that ?? > > > please help . > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Google Web Toolkit" group. > > > To post to this group, send email to > [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]<google-web-toolkit%[email protected]> > <google-web-toolkit%[email protected]<google-web-toolkit%[email protected]> > > > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/google-web-toolkit?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-web-toolkit%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- -- A. Stevko =========== "If everything seems under control, you're just not going fast enough." M. Andretti -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
