Hi,
I am experiencing a problem after upgrading to Java SDK 1.2.5. In a
simple CMS application a page is stored as a CMSPage entity, which
points to its text saved as a DetachedText entity using a Key property
(i.e. an unowned relationship) as follows:
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class CMSPage {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private Key text;
public Key getId() {
return id;
}
public void setId(Key id) {
this.id = id;
}
public Key getText() {
return text;
}
public void setText(Key text) {
this.text = text;
}
}
The Key property "text" points to:
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class DetachedText {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private Text content;
public DetachedText(Text content) {
this.content = content;
}
public Key getId() {
return id;
}
public Text getContent() {
return content;
}
}
NOTE: I have removed other properties and code that I found unrelated
to the problem
After saving the page I can see the "text" field populated in the
development console. The value shows as "DetachedText(5)". I also
verified that the DetachedText entity exists and its ID equals 5.
However, after I retrieve CMSPage from the datastore using a
javax.jdo.Query the "text" field in the retrieved object is null (both
the Eclipse debugger and the application throwing NPE confirm it).
What am I doing wrong?
Any pointers will be appreciated.
Thanks,
Yegor
--~--~---------~--~----~------------~-------~--~----~
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 [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-appengine-java?hl=en
-~----------~----~----~----~------~----~------~--~---
