Hello Ikia
As suggested by you in the thread 'Incorrect number of entities returned',
I have attached the complete files in my previous email.
Please let me know, what am I doing wrong here.
Thanks
-Aswath
On Tue, Feb 9, 2010 at 3:06 PM, aswath satrasala <aswath.satras...@gmail.com
> wrote:
> Hello Ikai,
> Attached is the zip file that contains three files
> A.java
> B.java
> BTest.java
>
> Please load in your environment and test it.
>
> Thanks.
> -Aswath
>
>
> On Fri, Feb 5, 2010 at 4:36 PM, aswath satrasala <
> aswath.satras...@gmail.com> wrote:
>
>> B list is missing from class A in my previous posting. Here is the
>> complete A class...
>>
>>
>> @PersistenceCapable(identityType = IdentityType.APPLICATION)
>> public class A {
>> @PrimaryKey
>> @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
>> @Extension(vendorName = "datanucleus", key="gae.encoded-pk",
>> value="true")
>> private String id;
>>
>> @Persistent
>> @Extension(vendorName = "datanucleus", key="gae.pk-name",
>> value="true")
>> private String name;
>>
>> @Persistent
>> private List<B> bList ;
>>
>> }
>>
>> On Fri, Feb 5, 2010 at 4:32 PM, aswath satrasala <
>> aswath.satras...@gmail.com> wrote:
>>
>>> This is a similar posting I had posted earlier "incorrect number of
>>> entities returned". Hopefully, this posting may be more clean and I will
>>> get some replies.
>>> I have two classes
>>> 1) A
>>> 2) B
>>> A is in 1 to many relationship with B
>>> @PersistenceCapable(identityType = IdentityType.APPLICATION)
>>> public class A {
>>> @PrimaryKey
>>> @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
>>> @Extension(vendorName = "datanucleus", key="gae.encoded-pk",
>>> value="true")
>>> private String id;
>>>
>>> @Persistent
>>> @Extension(vendorName = "datanucleus", key="gae.pk-name",
>>> value="true")
>>> private String name;
>>> }
>>>
>>> @PersistenceCapable(identityType = IdentityType.APPLICATION)
>>> public class B {
>>> @PrimaryKey
>>> @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
>>> @Extension(vendorName = "datanucleus", key = "gae.encoded-pk", value
>>> = "true")
>>> private String id;
>>>
>>> @Persistent
>>> @Extension(vendorName = "datanucleus", key = "gae.pk-name", value =
>>> "true")
>>> private String name;
>>> }
>>>
>>> public class BTest extends JDOTestCase {
>>>
>>> public void testB() throws Exception {
>>> A a = new A();
>>> a.setName("a");
>>> B b = new B();
>>> b.setName("b");
>>> a.getBList().add(b);
>>>
>>> beginTxn();
>>> pm.makePersistent(a);
>>> a = pm.getObjectById(A.class, a.getId());
>>> assertEquals(1, a.getBList().size());
>>> commitTxn();
>>>
>>> B b1 = new B();
>>> b1.setName("b1");
>>> beginTxn();
>>> pm.makePersistent(b1);
>>> b1 = pm.getObjectById(B.class, b1.getId());
>>> b1.getId();
>>> commitTxn();
>>> }
>>> }
>>>
>>> The test fails at the last line "b1.getId()"
>>> If any of B entity is in relation with A earlier, then another entity of
>>> B cannot be persisted by itself.
>>>
>>> If I move the 2nd transaction to the beginning, the test passes.
>>>
>>> -Aswath
>>>
>>>
>>>
>>
>
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