Hello, I have a (owner) one-to-many bidirectional relationship. A product can have multiple formats, but a format can only be associated with a product.
public class Product{ @PrimaryKey @Persistent private Key id; // string, by application ... @Persistent(mappedBy = "product") private List <Format> formats; } public class Format{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key id; //numeric, autogenerated ... @Persistent private Product producto; } Users select a format in a web page (radio button html) and application (servlet) must load the object identified by id. My code: forma = (Format) pm.getObjectById(Format.class, formatId); // formatId = 985 but I get: Could not retrieve entity of kind Format with key Format(985) Datastore Viewer shows a entity with ID/Name column = 985. How I must load object? What is wrong? Thank you! -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.