Hi Dhanji,
I need a suggestion - I implemented an annotation impl
(http://code.google.com/p/injectlet/source/browse/#svn/trunk) where
the method equals uses the obj.getClass() and it's currently working.
Is there a reason why it works - maybe because it's a special case -
or do we must blame ourselves?
Thanks in advance!
Best regards,
Simone
2008/9/2 Simone Tripodi <[EMAIL PROTECTED]>:
> Hi Dhanji
> of course you're right, I didn't test the code since I "developed" it
> directly in my mail client ;)
> Best,
> Simone
>
> 2008/9/2 Dhanji R. Prasanna <[EMAIL PROTECTED]>:
>>
>> note that this impl of equals will always return false because of
>> obj.getClass().
>>
>> Dhanji.
>>
>> On 9/1/08, Simone Tripodi <[EMAIL PROTECTED]> wrote:
>>>
>>> Hi Elek,
>>> as Robbie suggested you - and reading oldest posts here in the group
>>> you can understand that Robbie always knows the best solution - if you
>>> choice the second way (and you still need help) I've prepared for you
>>> the implementation you need:
>>>
>>>
>>> public class PersistenceContextImpl implements PersistenceContext {
>>>
>>> private String unitName;
>>>
>>> public PersistenceContextImpl(String unitName) {
>>> this.unitName = unitName;
>>> }
>>>
>>> public Class<? extends Annotation> annotationType() {
>>> return PersistenceContext.class;
>>> }
>>>
>>> @Override
>>> public boolean equals(Object obj) {
>>> if (this == obj) {
>>> return true;
>>> }
>>>
>>> if ((obj == null) || (obj.getClass() != PersistenceContext.class)) {
>>> return false;
>>> }
>>>
>>> PersistenceContext other = (PersistenceContext) obj;
>>> return unitName.equals(other.unitName());
>>> }
>>>
>>> @Override
>>> public int hashCode() {
>>> return (127 * "unitName".hashCode() ^ unitName.hashCode());
>>> }
>>>
>>> public String unitName() {
>>> return unitName;
>>> }
>>>
>>> }
>>>
>>>
>>> Now you're able to bind EntityManager in this way:
>>>
>>> binder.bind(EntityManager.class).annotatedWith(new
>>> PersistenceContextImpl("Test1PU")).toProvider(new
>>> EntityManagerProvider(directory1));
>>>
>>> binder.bind(EntityManager.class).annotatedWith(new
>>> PersistenceContextImpl("Test2PU")).toProvider(new
>>> EntityManagerProvider(directory2));
>>>
>>> I hope this helps!
>>> Best regards,
>>> Simone
>>>
>>> 2008/8/31 Robbie Vanbrabant <[EMAIL PROTECTED]>:
>>>> The easy answer: consider using Warp Persist (http://www.wideplay.com) for
>>>> guicy persistence. Although support for multiple persistence units is not
>>>> implemented in 1.0, we have have experimental support for it in the trunk.
>>>> If you depend on that functionality let me know and we will help you get
>>>> started.
>>>>
>>>> The other answer would be yes, you can do that. Have a look at how Guice
>>>> implements Names.named(...). You basically have to bind to annotation
>>>> instances instead of types, and you do that by subclassing the annotation
>>>> and binding to an instance of that subclass.
>>>>
>>>> Hope this helps,
>>>> Robbie
>>>>
>>>> On Sun, Aug 31, 2008 at 6:59 PM, elek <[EMAIL PROTECTED]> wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> Is there any way to inject dynamic values to a class according to the
>>>>> annotation parameters with Guice?
>>>>> Eg.: I have the following fields in a class:
>>>>>
>>>>> @PersistenceContext(unitName="Test1PU")
>>>>> EntityManager em1;
>>>>>
>>>>> @PersistenceContext(unitName="Test2PU")
>>>>> EntityManager em2;
>>>>>
>>>>> An I would like to inject different EntityManager instances.
>>>>> Unfortunately I can't access the annotation or the original Field over
>>>>> the the Provider interface:
>>>>>
>>>>>
>>>>> binder.bind(EntityManager.class).annotatedWith(PersistenceContext.class).toProvider(new
>>>>> EntityManagerProvider(directory, ???unitName value???));
>>>>>
>>>>> Is there any solution for it?
>>>>>
>>>>> Thanks:
>>>>> m.
>>>>>
>>>>
>>>>
>>>> >
>>>>
>>>
>>>
>>>
>>> --
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>>>
>>> >
>>>
>>
>> >>
>>
>
>
>
> --
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>
--
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