Hi all, I copy what they published a time ago and it is a problem that also is happening to me also to my and there was no response. The link: http://groups.google.com/group/google-appengine/browse_thread/thread/adfd7cc231506fbf/2a61814cc0d509c4?lnk=gst&q=inheritance#2a61814cc0d509c4 I've used hibernate for a while, and I'm having a bit of trouble switching to JDO. I have several entities that all entities will share. Rather than a parent table, I'd prefer these columns be embedded directly in each entity. As such, I've defined my abstract entity and child entity in the classes below. However, whenever I try to run my unit tests or the jetty environment, I always receive the following error. org.datanucleus.exceptions.NoPersistenceInformationException: The class "com.onwebconsulting.inventory.model.Part" is required to be persistable yet no Meta-Data/Annotations can be found for this class. Please check that the Meta-Data/annotations is defined in a valid file location.]] According to my Eclipse console I have 1 class that has been Enhanced. Any ideas what I'm doing wrong? DataNucleus Enhancer completed with success for 1 classes. Timings : input=268 ms, enhance=51 ms, total=319 ms. Consult the log for full details @Inheritance(strategy = InheritanceStrategy.NEW_TABLE) public class Part extends Auditable{ @Persistent private String name; @Persistent private String description; @Persistent private String partNumber; @Persistent private long quantity; @Persistent private String manuacturersPartNumber; @Persistent private String manufacturerName; @Persistent private String suppliersPartNumber; @Persistent private String supplierName; @Persistent private String supplierWebsite; @Persistent private float salePrice; @Persistent private float supplierPrice; ... Getters and Setters } @PersistenceCapable(identityType = IdentityType.APPLICATION) @Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE) public abstract class Auditable { @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key id; @Persistent private Date createDate; @Persistent private Date updatedDate; @Persistent private long version; public Key getId() { return id; } public Date getCreateDate() { return createDate; } public Date getUpdatedDate() { return updatedDate; } public long getVersion(){ return version; }
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