Setting metadata properties to entities

Question

I am trying to create an entity in SDS of 'Employee' knid. Followig is the statement. When i am executing this, it is throwing an error saying that "Invalid Entity definition.  The metadata property 'Kind' is unknown".

@"<Book xmlns:s='http://schemas.microsoft.com/sitka/2008/03/'
                         xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
                         xmlns:x='http://www.w3.org/2001/XMLSchema' >
                     <s:Id>1</s:Id>
                     <s:Kind>Employee</s:Kind>  
                     <title xsi:type='x:string'>Microsoft</title>
                 </Book>";

I understand that this meatadata property is needed to apply joins accross entities which are stored in the same container. Please let me know if i am missing anything

Answer 1

Hi Vijay,

I have modified this xml for  'Employee' kind and cheked with sds explorer.  In this way you can assign kind while creating entity in SDS.

@"<Employee xmlns:s='http://schemas.microsoft.com/sitka/2008/03/'

xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'

xmlns:x='http://www.w3.org/2001/XMLSchema' >

<s:Id>1</s:Id>

<title xsi:type='x:string'>Microsoft</title>

</Employee>"

Answer 2

The root tag name provides the Kind metadata property values. Here is another example, when using SDS Explorer, the default XML for entity looks as follows:

<s:Entity xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:x="http://www.w3.org/2001/XMLSchema"
             xmlns:s="http://schemas.microsoft.com/sitka/2008/03/">
   <s:Id>SomeGUID</s:Id>
</s:Entity>

In this case, "Entity" is the default kind. If you change this to some other kind ("myKind" in the following example), note the namespace prefix is not added.

<myKind xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
             xmlns:x="http://www.w3.org/2001/XMLSchema"
             xmlns:s="http://schemas.microsoft.com/sitka/2008/03/">
   <s:Id>59e491d8-ddf6-41cd-9b97-370a9ca5bdb9</s:Id>
</myKind>

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Mohan.Vanmane at Microsoft.com