any help on this please...
Thanks.
On Fri, Feb 12, 2010 at 3:18 PM, aswath satrasala <
aswath.satras...@gmail.com> wrote:
> 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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