Setting attributes in Centera

Hi Experts,

I'm using centera as the storage for one of the custom object type and need to set custom attributes in centera.

I need to know how to set single and repeating attributes in centera for a document which is uploaded by custom DFC code?

I'm following approach in which I will import the new document using operations and then getting the object id of imported document and then setting its custom attributes. I have a doubt that if values are set via dfSysobject.setRepeating (... ) or DfSysobject.SetString() will this set them into Centera.

Please advice.

Thanks in advance

Prashant

Find more posts tagged with

Documentum

Comments

Phukon

We can only add user-defined attributes using the environment variable CENTERA_CUSTOM_METADATA. This variable will be read during FPClip_Create().

Use FPClip_GetDescriptionAttribute() to read the user-defined attributes.

Use FPClip_GetDescriptionAttributeIndex() to see which user-defined attributes and standard metadata attributes the CDF contains.

Parameters: • const FPClipRef inClip

The reference to a C-Clip that was opened by the FPClip_Open or FPClip_Create function.

• const char *inAttrName/const wchar_t *inAttrName inAttrName is the buffer that contains the name of the attribute that needs to be added.

• const char *inAttrValue/const wchar_t *inAttrValue inAttrValue is the buffer that contains the value of the attribute that needs to be added.

Example: MyClip = FPClip_Create(MyPool, "test");

FPClip_SetDescriptionAttribute(MyClip, "company",

"com.acme")

Error Handling: FPPool_GetLastError() returns ENOERR (zero) if successful or:

• FP_PARAM_ERR (program logic error)

• FP_OPERATION_NOT_SUPPORTED (program logic error)

• FP_WRONG_REFERENCE_ERR (program logic error)

• FP_OUT_OF_BOUNDS_ERR (program logic error)

Hope that helps.

kaja

Hi,

Adding some more information regarding Centera SDK attributes,

Maximum size of attribute name is 1 KB, This is the default value. The application can change the default to a maximum of 1MB.

Maximum size of attribute value is 100 KB. This is the default value. The application can change the default to a maximum of 1MB.

Maximum number of attributes in a tag is 256 or 100MB.

CentraStar: The number of attributes cannot exceed 256. SDK: The maximum is limited to how many attributes can fit into 100MB (max CDF size).

Happy to Help Kaja Ismail

Kasbe_Prashant

Thanks Kaja and Phukon,

I've another question, how are repeating attributes set in Centera. I'm using the apiExec("setContentAttrs... ) method to write attributes in Centera, but facing problem with repeating attributes. Could you please help me on this.

I would also like to know the command to see values of repeating attriibutes that are uploaded in Centera.

Please let me knwo on this.

Thanks

Prashant Kasbe

Mabro

This post is more appropriate in the Developer Forums. Please standby while we move this discussion ensuring you get the best and most appropriate response.

Regards,

Mark

AlanZ

Prashant,

Your message has been moved into the Centera SDK Developers community.

Hopefully this will get your question in front of others who have had experience with your topic.

mckeown_paul

I'm not sure what you mean by custom DFC code or setting repeating attributes, could you explain in terms of the Cenetra API?

Kasbe_Prashant

Hi Paul,

I mean I'm trying to set attributes for a content which I'm importing from Documentum applications.

I'm using the setcontentattrs in DFC(documentum foundation classes) code while importing content in documentum where I've set the storage as Centera.

code is as below

this.dfSession.apiExec("setcontentattrs",robjectID+","+format+",0,,'"+formattedAttributeString+"'");

the apiExec method is depricated in new version of Documentum code hence I was looking alternative for depricated method.

Regards

Prashant

mckeown_paul

Prashant

I'm afraid most folk on this forum wont know how to use the Documentum APIs sop I think your question was erroneously moved here, it should have gone to the Documentum forum instead.

If you want to use the native Centera API then the info elsewhere in this thread is good. If not try postying the question in the Documentum forum

AlanZ

Paul, Prashant

Let's give this another try by moving it to the Documentum Developer community.

Perhaps there are developers who have some additional insight.

RalfKahrl

Hi,

have you already checked out Object Reference - 'dmr_content' and Content Server Fundamentals - 'Setting content properties and metadata for content-addressed storage'?

As far as I can remember I had a similar requirement some time ago... As dmr_content is not capable of handling multiple values for one property, you have to figure a way out which matches your requirements best. eg. use a ',' separated list or use a different separator as well as the content_attr_value filed is only string(255) you might use several indexed content_attr_name eg. my_custom[1], my_custom[2] each containing your repeating attributes.

Best Regards.