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Posted to dev@chemistry.apache.org by Mano Swerts <m....@aca-it.be> on 2012/05/23 12:15:09 UTC
Which version should session.getObject(id) return?
Hi all,
We use CMIS to connect to an Alfresco repository and are upgrading from
Alfresco 3.4.2 to Alfresco 4.0.1, which should be compliant to the CMIS
spec. Alfresco 3.4.2 wasn't entirely compliant, so we are running into some
problems.
I have a document with 2 versions: version 1.0 and version 2.0. When
executing the following query we get the latest version (2.0) as a result:
session.query("SELECT * FROM park:document WHERE cmis:objectId =
'workspace://SpacesStore/77f9e52f-6acf-47bd-83f1-f654c59e7b75'
> ", false);
Adding the version specifier suffix ";2.0" to the object id in the query
works as well. This didn't work with Alfresco 3.4.2, so I assume that this
is compliant as well?
When executing the getObject(id) method with the same id (without version
specifier), return the first version (1.0) as a result:
> session.getObject("
> workspace://SpacesStore/77f9e52f-6acf-47bd-83f1-f654c59e7b75")
We expected the latest version as a result. When adding the version
specifier suffix ";2.0" to the object id, we are able to retrieve the
latest version. Is this compliant behavior?
I looked into the CMIS specification, but I could not find any reference to
which version should be returned when not specifying a version. If this is
compliant behavior, is there another way to
easily retrieve the latest version of a document without using a CMIS query?
Thanks in advance.
Met vriendelijke groeten,
Kind regards,
Bien à vous,
Mano Swerts
Solution Engineer
_______________________________________________________
ACA IT-Solutions
Ilgatlaan 5C Clovislaan 82
B-3500 Hasselt B-1000 Brussel
Belgium Belgium
T: +32 (0)11 26 50 10 E: m.swerts@aca-it.be
F: +32 (0)11 26 50 11 U: www.aca-it.be
M: +32 (0)484 80 81 45
______________________________________________________
Re: Which version should session.getObject(id) return?
Posted by Mano Swerts <m....@aca-it.be>.
Hi Florian,
Thanks for the quick reply. Those general answers were the answers I was
looking for ;-) I just wanted some clarification about the CMIS spec
regarding ID's and which version should be returned.
Thanks.
Met vriendelijke groeten,
Kind regards,
Bien à vous,
Mano Swerts
Solution Engineer
_______________________________________________________
ACA IT-Solutions
Ilgatlaan 5C Clovislaan 82
B-3500 Hasselt B-1000 Brussel
Belgium Belgium
T: +32 (0)11 26 50 10 E: m.swerts@aca-it.be
F: +32 (0)11 26 50 11 U: www.aca-it.be
M: +32 (0)484 80 81 45
______________________________________________________
On Wed, May 23, 2012 at 1:00 PM, Florian Müller <fm...@apache.org> wrote:
> Hi Mano,
>
> This is an Alfresco specific question and you should ask there.
>
> Here are some general answers.
>
> The CMIS object id is an opaque string. You should never rely on the
> format of this string. As you have seen, it changed from Alfresco 3 to
> Alfresco 4 and might change in Alfresco 5 or 6 again. Other repositories
> use a completely different format.
>
> Each version in CMIS has its own unique and opaque object id. A
> getObject() call returns the document version that matches the id that you
> have provided. It may or may not be the latest version.
>
> You can determine if the document is the latest version by calling
> isLatestVersion() on the document object. If it is not, call
> getObjectOfLatestVersion() to retrieve the latest version.
>
>
> - Florian
>
>
>
>
> Hi all,
>>
>> We use CMIS to connect to an Alfresco repository and are upgrading from
>> Alfresco 3.4.2 to Alfresco 4.0.1, which should be compliant to the CMIS
>> spec. Alfresco 3.4.2 wasn't entirely compliant, so we are running into
>> some
>> problems.
>>
>> I have a document with 2 versions: version 1.0 and version 2.0. When
>> executing the following query we get the latest version (2.0) as a result:
>>
>> session.query("SELECT * FROM park:document WHERE cmis:objectId =
>> 'workspace://SpacesStore/**77f9e52f-6acf-47bd-83f1-**f654c59e7b75'
>>
>>> ", false);
>>>
>>
>> Adding the version specifier suffix ";2.0" to the object id in the query
>> works as well. This didn't work with Alfresco 3.4.2, so I assume that this
>> is compliant as well?
>>
>>
>> When executing the getObject(id) method with the same id (without version
>> specifier), return the first version (1.0) as a result:
>>
>> session.getObject("
>>> workspace://SpacesStore/**77f9e52f-6acf-47bd-83f1-**f654c59e7b75")
>>>
>>
>> We expected the latest version as a result. When adding the version
>> specifier suffix ";2.0" to the object id, we are able to retrieve the
>> latest version. Is this compliant behavior?
>> I looked into the CMIS specification, but I could not find any reference
>> to
>> which version should be returned when not specifying a version. If this is
>> compliant behavior, is there another way to
>> easily retrieve the latest version of a document without using a CMIS
>> query?
>>
>>
>> Thanks in advance.
>>
>>
>> Met vriendelijke groeten,
>> Kind regards,
>> Bien à vous,
>>
>> Mano Swerts
>> Solution Engineer
>>
>> ______________________________**_________________________
>>
>> ACA IT-Solutions
>>
>> Ilgatlaan 5C Clovislaan 82
>> B-3500 Hasselt B-1000 Brussel
>> Belgium Belgium
>>
>> T: +32 (0)11 26 50 10 E: m.swerts@aca-it.be
>> F: +32 (0)11 26 50 11 U: www.aca-it.be
>> M: +32 (0)484 80 81 45
>> ______________________________**________________________
>>
>
>
Re: Which version should session.getObject(id) return?
Posted by Florian Müller <fm...@apache.org>.
Hi Mano,
This is an Alfresco specific question and you should ask there.
Here are some general answers.
The CMIS object id is an opaque string. You should never rely on the
format of this string. As you have seen, it changed from Alfresco 3 to
Alfresco 4 and might change in Alfresco 5 or 6 again. Other repositories
use a completely different format.
Each version in CMIS has its own unique and opaque object id. A
getObject() call returns the document version that matches the id that
you have provided. It may or may not be the latest version.
You can determine if the document is the latest version by calling
isLatestVersion() on the document object. If it is not, call
getObjectOfLatestVersion() to retrieve the latest version.
- Florian
> Hi all,
>
> We use CMIS to connect to an Alfresco repository and are upgrading
> from
> Alfresco 3.4.2 to Alfresco 4.0.1, which should be compliant to the
> CMIS
> spec. Alfresco 3.4.2 wasn't entirely compliant, so we are running
> into some
> problems.
>
> I have a document with 2 versions: version 1.0 and version 2.0. When
> executing the following query we get the latest version (2.0) as a
> result:
>
> session.query("SELECT * FROM park:document WHERE cmis:objectId =
> 'workspace://SpacesStore/77f9e52f-6acf-47bd-83f1-f654c59e7b75'
>> ", false);
>
> Adding the version specifier suffix ";2.0" to the object id in the
> query
> works as well. This didn't work with Alfresco 3.4.2, so I assume that
> this
> is compliant as well?
>
>
> When executing the getObject(id) method with the same id (without
> version
> specifier), return the first version (1.0) as a result:
>
>> session.getObject("
>> workspace://SpacesStore/77f9e52f-6acf-47bd-83f1-f654c59e7b75")
>
> We expected the latest version as a result. When adding the version
> specifier suffix ";2.0" to the object id, we are able to retrieve the
> latest version. Is this compliant behavior?
> I looked into the CMIS specification, but I could not find any
> reference to
> which version should be returned when not specifying a version. If
> this is
> compliant behavior, is there another way to
> easily retrieve the latest version of a document without using a CMIS
> query?
>
>
> Thanks in advance.
>
>
> Met vriendelijke groeten,
> Kind regards,
> Bien à vous,
>
> Mano Swerts
> Solution Engineer
>
> _______________________________________________________
>
> ACA IT-Solutions
>
> Ilgatlaan 5C Clovislaan 82
> B-3500 Hasselt B-1000 Brussel
> Belgium Belgium
>
> T: +32 (0)11 26 50 10 E: m.swerts@aca-it.be
> F: +32 (0)11 26 50 11 U: www.aca-it.be
> M: +32 (0)484 80 81 45
> ______________________________________________________