Hi,
Consider an example where class A has a "child" property of class B,
and B has a property "title", as follows:
@PersistenceCapable
@Version(... field-name="version")
Class A {
protected long version;
@Persistent
protected B child;
....
}
@PersistenceCapable
Class B {
@Persistent
protected String title;
public void setTitle(String title) {...}
....
}
tx.begin();
// get an instance of Class A
A parent = ...;
parent.child.setTitle("foo");
pm.makePersistent(parent);
tx.commit();
Question1: Will the version of "parent" be increased in this case
(when all its property values are not changed directly)?
Question2: Does appengine support the VersionStrategy.DATE_TIME
attribute in @Version?
Question3: Given that A is annotated with @Version and the version
field is protected, should a subclass of A needs to be annotated with
@Version too in order to have the version managed by JDO/JPA?
Sorry in advance if these questions appear somewhere else.
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