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9 Posts
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2336
CDF in Centera
Hi All,
I am new to Centera and would like to know about its implementation
I came to know that Centera contains a clip which contains both the blob (content) and the CDF.
My question here is
1) How is CDF created?
2) What all information is there in CDF
3) Are there API's available for writing to CDF from Documentum application.
It woule be helpful if i can get any study material regarding this.
Regards,
Nitesh
I am new to Centera and would like to know about its implementation
I came to know that Centera contains a clip which contains both the blob (content) and the CDF.
My question here is
1) How is CDF created?
2) What all information is there in CDF
3) Are there API's available for writing to CDF from Documentum application.
It woule be helpful if i can get any study material regarding this.
Regards,
Nitesh
EMCDennis
124 Posts
0
October 8th, 2009 07:00
You should not have to write your own application but rather use the Documentum interface to Centera
holgerjakob_c0722c
337 Posts
1
October 8th, 2009 06:00
The CDF is created by API Calls and are the beginning of a clip creation. There are a couple of tags that are automatically created and then others might be created by the application.
Below is an example of a CDF:
meta-name tags are completed by the SDK. custom-Meta and the data tags are from the application.
The best way to start learning the Centera SDK is to register at community.emc.com and to download JCASScript.
Best regards, Holger
EMCDennis
124 Posts
1
October 8th, 2009 06:00
The clip also contains a reference(s) to the blob(s) content address(es).
When the application writes an object to the Centera, it first writes the blob (the actual object being written) which returns a content address of the blob. The SDK then writes the clip with any meta-data supplied to it from the application and inserts the blob ID. The clip content address is returned to the application which stores this in an internal database which establishes a relationship between the content address of the clip and the file system name/location of the object written.
Documentum Centera application uses the API (SDK) to write these objects. Once an object is written it cannot be changed. Updates are handled by the application which generally results in a new clip/blob being written to the Centera with the old clip/blob being deleted (application dependent)
Nitesh3
9 Posts
0
October 8th, 2009 07:00
You mentioned "Documentum Centera application uses the API (SDK) to write these objects". So is this done as an Out Of Box feature or do we need to write our own custom program for writing these custom attribues to CDF
holgerjakob_c0722c
337 Posts
1
October 8th, 2009 11:00
The add-on to Documentum is called Content Services for EMC Centera. This allows the creation of store that points to Centera.
You can define your workflow in Documentum and under which circumstanced object shall be written to Centera.
Holger