Question

Need example of Documentum 6.5 client written in .Net

Asked by: klamerus

Unfortunately, the Documentum example pool seems to have dried up in the use of Documentum from .Net clients.

Whereas there was an ability to use the client DLLs from .Net, that has been broken with Documentum 6.5.  There is a claimed DFC/.Net interface and DFS, but the examples are poor for either and no examples I've found show the full compliment of functionality available in their core API.

I'm looking for an example that might connect to a Documentum system from either VB.Net or C# and create a document and metadata of it.  Alternatively, something that queries for a document by metadata and downloads the content would be at least a start.

The key is it can't be java and it can't be server-side.  I need an actual .Net client (second computer) example.

I'd settle (prefer) an example doing the above via web-services, but I can't even find a shred of that anywhere.

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Asked On
2009-08-11 at 09:41:05ID24643752
Topic

.NET

Participating Experts
1
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Comments
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Answers

 

by: Rsulliv1Posted on 2009-08-21 at 00:25:23ID: 25149683

Take a look at this post & let me know if that answers your question:

https://community.emc.com/docs/DOC-2214

Also, the developer.emc.com site has a number of resources if you don't have powerlink access.

 

by: klamerusPosted on 2009-09-01 at 15:51:08ID: 25236946

Not really.

This doesn't include an example - it's just how (theoretically) to configure a client to use the DFS.  It's not really a working example.

 

by: Rsulliv1Posted on 2009-09-01 at 16:31:17ID: 25237146

If your questions are:

1. need example of .net web service client code (in forum code posted above)
2.  example that might connect to a Documentum system from either VB.Net or C# and create a document and metadata of it.  (in dfs reference guide, example 3-2 copied below)
3.  something that queries for a document by metadata (in dfs reference guide, example 15-6 copied below)
4. something that downloads documents (in dfs reference guide, example 3-10 copied below)

Then you should be able to use the standard DCTM DFS documentation along with the post available on the community site, such as the one supplied above.

Lastly, the code in the forum is executable code as stated in the thread. The forum states: "we will use the HelloWorldService distributed with the D6.5 DFS SDK as our baseline for client access".

For example, from the DFS reference guide:

Example 3-­2. C#: Simple object creation
public DataPackage CreateNewFolder()
{
    ObjectIdentity folderIdentity = new ObjectIdentity();
    folderIdentity.RepositoryName = DefaultRepository;
    DataObject dataObject = new DataObject(folderIdentity, "dm_folder");
    PropertySet properties = new PropertySet();
    String folderName = "aTestFolder­" + System.DateTime.Now.Ticks;
    properties.Set("object_name", folderName);
    dataObject.Properties = properties;
    DataPackage dataPackage = new DataPackage(dataObject);
    OperationOptions operationOptions = null;
    return objectService.Create(dataPackage, operationOptions);
}


Example 3­-10. C#: Basic object retrieval
public DataObject GetObjectWithDefaults(ObjectIdentity objIdentity)
{
    objIdentity.RepositoryName = DefaultRepository;
    ObjectIdentitySet objectIdSet = new ObjectIdentitySet();
    List<ObjectIdentity> objIdList = objectIdSet.Identities;
    objIdList.Add(objIdentity);
    OperationOptions operationOptions = null;
    DataPackage dataPackage = objectService.Get(objectIdSet, operationOptions);
    return dataPackage.DataObjects[0];
}




Example 15-­6. C#: Structured query
public void SimpleStructuredQuery()
{
    try
    {
         String repoName = DefaultRepository;
         // Create query
         StructuredQuery q = new StructuredQuery();
         q.AddRepository(repoName);
         q.ObjectType = "dm_document";
         q.IsIncludeHidden = true;
         q.IsDatabaseSearch = true;
         ExpressionSet expressionSet = new ExpressionSet();
         expressionSet.AddExpression(new PropertyExpression("owner_name",
                                                            Condition.CONTAINS,
                                                            "admin"));
         q.RootExpressionSet = expressionSet;
         // Execute Query
         int startingIndex = 0;
         int maxResults = 20;
         int maxResultsPerSource = 60;
         QueryExecution queryExec = new QueryExecution(startingIndex,
                                                       maxResults,
                                                       maxResultsPerSource);
         QueryResult queryResult = searchService.Execute(q, queryExec, null);
         QueryStatus queryStatus = queryResult.QueryStatus;
         RepositoryStatusInfo repStatusInfo = queryStatus.RepositoryStatusInfos[0];
      if (repStatusInfo.Status == Status.FAILURE)
      {
          Console.WriteLine(repStatusInfo.ErrorTrace);
          throw new Exception("Query failed to return result.");
      }
      // print results
      foreach (DataObject dataObject in queryResult.DataObjects)
      {
          Console.WriteLine(dataObject.Identity);
      }
  }
  catch (Exception e)
  {
      Console.WriteLine(e.Message);
      Console.WriteLine(e.StackTrace);
      throw new Exception(e.Message);
  }
}

 

by: klamerusPosted on 2009-09-02 at 16:18:29ID: 31614305

What more could someone ask for.

20120131-EE-VQP-002

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