I have a simple Class with getters and setters, and :
@PersistenceCapable(identityType= IdentityType.APPLICATION, detachable =
"true" )
class MyInnerClass implements IsSerializable {
@Persistent(defaultFetchGroup = "true")
private MyClass myClass;
@PrimaryKey
@Extension(vendorName = "datanucleus", key = "gae.encoded-pk", value =
"true")
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
String Id;
}
@PersistenceCapable(identityType = IdentityType.APPLICATION, detachable =
"true" )
public class MyClass implements IsSerializable {
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@PrimaryKey
@Extension(vendorName = "datanucleus", key = "gae.encoded-pk", value =
"true")
String Id;
@Persistent(mappedBy = "myClass")
List<MyInnerClass> listMyInnerClass;
}
2011/10/10 Brandon Donnelson <[email protected]>
> What type of owned List do you have?
>
> Have a good day,
> Brandon Donnelson
> c.gawkat.com
>
>
> On Mon, Oct 10, 2011 at 1:30 PM, Bruno Sandivilli <
> [email protected]> wrote:
>
>> Thanks for the help from you guys!
>> But, yes im using IsSEriazeble. I've changed my code to detachable in both
>> classes, but, when i call:
>>
>> if(listMyClass.size() > 0)
>> {
>> for (MyClass myClass : listMyClass) {
>> return (pm.detachCopy(myClass.getMyInnerClassList()));
>> }
>> }
>> return null;
>>
>>
>> gives me : The class "org.datanucleus.sco.backed.List" is not persistable.
>> This means that it either hasnt been enhanced, or that the enhanced version
>> of the file is not in the CLASSPATH (or is hidden by an unenhanced version),
>> or the Meta-Data/annotations for the class are not found.
>>
>>
>> debugging this, i've reached this : assertClassPersistable in the class
>> ObjectMAnagerImpl. This function :
>>
>> public void assertClassPersistable(Class cls)
>> {
>> if (cls != null &&
>> !getOMFContext().getApiAdapter().isPersistable(cls) && !cls.isInterface())
>> {
>> throw new ClassNotPersistableException(cls.getName());
>> }
>> if (!hasPersistenceInformationForClass(cls))
>> {
>> throw new NoPersistenceInformationException(cls.getName());
>> }
>> }
>>
>>
>> 2011/10/9 Brandon Donnelson <[email protected]>
>>
>>>
>>> @PersistenceCapable(detachable="true")
>>>
>>>
>>> detached = pm.detachCopy(employee);
>>>
>>>
>>> Those will create a java.util List object. That should fix it.
>>>
>>> Brandon
>>>
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