I just examined the jars in some detail and see that there is only 1 jar changed: datanucleus-appengine-1.0.3.jar -> datanucleus- appengine-1.0.4.RC1.jar. I'll upgrade that into the Eclipse plugin and do some tests. Unfortunately, my data model uses owned relationships from the base class, which I guess doesn't work just yet. I'll report back. Thanks.
On Nov 19, 8:22 pm, Rick Horowitz <rickh...@gmail.com> wrote: > Thank you for responding. This is not good, but I guess it could be worse. > Google could be ignoring these problems instead of fixing them. One more > question. What's the right way to install appengine-orm-1.0.4.rc1.zip with > the Eclipse App Engine SDK 1.2.6? Do I just replace all the jars in the SDK > with the jars from appengine-orm-1.0.4.rc1.zip? > > Thanks very much. > > Rick > > On Thu, Nov 19, 2009 at 5:03 PM, Ikai L (Google) <ika...@google.com> wrote: > > > The current version won't support inheritance, which may explain why this > > isn't working. It looks like fixes for inheritance will be going out when > > datanucleus is updated: > > >http://code.google.com/p/datanucleus-appengine/issues/detail?id=25 > > > The stack trace looks different, though, but that may be because you are > > using a transaction, and the transaction manager is taking a look at the key > > that is being generated and does not recognize "Address" as having > > "Customer" as an ancestor. > > > I'm not sure why you need a transaction here, though. It doesn't look like > > Customer or Address will be out of sync. You could also accomplish the same > > thing using an embedded class, though I suppose that wouldn't work if > > multiple customers had the same address and addresses changed frequently > > (though you could solve this by updating all matching embedded addresses if > > an address changes in a transaction, making the Address the parent of the > > Customer). > > > ---------- Forwarded message ---------- > > From: Rick Horowitz <rickh...@gmail.com> > > Date: Thu, Nov 19, 2009 at 1:44 PM > > Subject: [google-appengine] Re: Can't get owned relationship working with > > JDO and subclass > > To: Google App Engine <google-appengine@googlegroups.com> > > > Does anyone have any idea why this won't work? I've tried every option > > I can think of and it still doesn't work. Would really appreciate some > > help from someone knowledgeable about JDO and gae. I'm assuming it's > > pretty basic to persist a subclass object whose superclass (base > > class) references an owned object, but gae doesn't seem to like it. I > > tried the base class as abstract and concrete, and tried the keys as > > type Key and as encoded String. No luck. > > > Thanks very much for any help. > > > Rick > > > On Nov 15, 11:40 pm, Rick Horowitz <rickh...@gmail.com> wrote: > > > I'm trying to persist a simple class relationship using JDO. My code > > > is listed below and here's a brief overview of what I'm trying to do: > > > > I have 3 classes: > > > > Person, Customer (extends Person), and Address (referenced from > > > Person). If I create a Person instance and an Address instance and > > > call setAddress() on Person, then call > > > PersistenceManager.makePersistent(), the objects get saved correctly. > > > > However, if I create a Customer instance and an Address instance, I > > > get the following error message: > > > > java.lang.IllegalArgumentException: can't operate on multiple entity > > > groups in a single transaction. found both Element { > > > type: "Customer" > > > id: 1} > > > > and Element { > > > type: "Address" > > > id: 2 > > > > } > > > > I am doing this from within a JDO transaction. > > > > Here's the code: > > > > First, the server-side code that attempts to create and persist the > > > objects: > > > ----------------------------------------------------------------------------------------------------------- > > > > PersistenceManager pm = > > PMF.get().getPersistenceManager(); > > > Transaction txn = pm.currentTransaction(); > > > try { > > > txn.begin(); > > > Address a = new Address("15 Post Road", "", > > "Anytown", "New York", > > > "USA", "03801"); > > > Customer c = new Customer(); > > > c.setAddress(a); > > > c.setFirstName("John"); > > > c.setLastName("Doe"); > > > pm.makePersistent(c); > > > txn.commit(); > > > } finally { > > > if (txn.isActive()) { > > > txn.rollback(); > > > } > > > pm.close(); > > > } > > > > Person: > > > ----------- > > > > @PersistenceCapable(identityType = IdentityType.APPLICATION) > > > @Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE) > > > public abstract class Person implements Serializable { > > > > public static enum PERSON_KEYS { > > > firstName, > > > lastName, > > > workEmail, > > > phoneNbr > > > } > > > static final long serialVersionUID = 100L; > > > > @PrimaryKey > > > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > > > @Extension(vendorName = "datanucleus", key = "gae.encoded-pk", > > > value="true") > > > private String key; > > > private String firstName; > > > private String lastName; > > > private String middleInitial; > > > private String workEmail; > > > private String homeEmail; > > > private String phoneNbr; > > > @Persistent > > > private Address address = new Address(); > > > private String salutation; > > > > public Person() { > > > } > > > > public String getKey() { > > > return key; > > > } > > > > public void setKey(String key) { > > > this.key = key; > > > } > > > > public String getWorkEmail() { > > > return (this.workEmail); > > > } > > > > public void setWorkEmail(String workEmail) { > > > this.workEmail = workEmail; > > > } > > > > public String getHomeEmail() { > > > return homeEmail; > > > } > > > > public void setHomeEmail(String homeEmail) { > > > this.homeEmail = homeEmail; > > > } > > > > @NotPersistent > > > public String getEmailAddress() { > > > String emailAddr = getWorkEmail(); > > > if ((emailAddr == null) || (emailAddr.length() ==0)) > > > emailAddr = getHomeEmail(); > > > return emailAddr; > > > } > > > > public void setEmailAddress(String emailAddress) { > > > setWorkEmail(emailAddress); > > > } > > > > @NotPersistent > > > public String getFullName() { > > > StringBuffer sb = new StringBuffer(); > > > if (getFirstName() != null) { > > > sb.append(getFirstName()); > > > sb.append(" "); > > > } > > > if ((getMiddleInitial() != null) && > > (getMiddleInitial().length() > > > > 0)) { > > > sb.append(getMiddleInitial()); > > > sb.append(" "); > > > } > > > if (getLastName() != null) { > > > sb.append(getLastName()); > > > } > > > return sb.toString(); > > > } > > > > public String getFirstName() { > > > return (this.firstName); > > > } > > > > public void setFirstName(String firstName) { > > > this.firstName = firstName; > > > } > > > > public String getLastName() { > > > return (this.lastName); > > > } > > > > public void setLastName(String lastName) { > > > this.lastName = lastName; > > > } > > > > public Address getAddress() { > > > > public void setAddress(Address address) { > > > this.address = address; > > > } > > > > public String getMiddleInitial() { > > > return middleInitial; > > > } > > > > public void setMiddleInitial(String middleInitial) { > > > this.middleInitial = middleInitial; > > > } > > > > public String getPhoneNbr() { > > > return phoneNbr; > > > } > > > > public void setPhoneNbr(String phoneNbr) { > > > this.phoneNbr = phoneNbr; > > > } > > > > } > > > > Customer: > > > --------------- > > > > @PersistenceCapable(identityType = IdentityType.APPLICATION) > > > public class Customer extends Person implements Serializable { > > > > static final long serialVersionUID = 100L; > > > > public static enum CUSTOMER_KEYS { > > > username, > > > password, > > > companyName, > > > } > > > > public static int FT_STATUS_OK = 0; > > > public static int FT_STATUS_ACTIVE_FREE_TRIAL = 1; > > > public static int FT_STATUS_ACTIVE_FREE_TRIAL_EXT = 2; > > > public static int FT_STATUS_RECENT_FREE_TRIAL = 4; > > > public static int FT_STATUS_RECENT_FREE_TRIAL_EXT = 8; > > > > private String username; > > > private String password; > > > private String companyName; > > > private int freeTrialStatus; > > > > public Customer() { > > > } > > > > public String getUsername() { > > > return (this.username); > > > } > > > > public void setUsername(String username) { > > > this.username = username; > > > } > > > > public String getPassword() { > > > return (this.password); > > > } > > > > public void setPassword(String password) { > > > this.password = password; > > > } > > > > public int getFreeTrialStatus() { > > > return freeTrialStatus; > > > } > > > > public String getCompanyName() { > > > return companyName; > > > } > > ... > > read more » -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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