Metadata Access (IOMI Interface)

GetSubtypes

Gets all possible subtypes for a specified metadata type.

Category: Management methods

rc=GetSubtypes(supertype,subtypes,ns,flags,options);

Parameters

Parameter	Type	Direction	Description
rc	N	out	Return code for the method. For more information, see Return Code.
supertype	C	in	Name of the metadata type for which you want to get a list of subtypes.
subtypes	C	out	Returned XML list of all subtypes for the specified metadata type.
ns	C	in	Namespace to use as the context for the request.
flags	L	in	OMI_ALL_DESCENDANTS=64 Specifies to get the descendants of the returned subtypes and the subtypes.
options	C	in	Passed indicator for options. <DOAS Credential="credHandle"/> Enables a client to make a metadata request for another user. For more information, see <DOAS> Option.

Details

Subtypes are metadata types that adopt the characteristics of a specified metadata supertype. In addition, a subtype can have subtypes of its own.

The SUBTYPES parameter returns an XML string that has the Id=, Desc=, and a HasSubtypes= attribute for each subtype. The HasSubtypes= attribute indicates whether a subtype has any subtypes of its own. If this attribute has a value of 0, then the subtype does not have any subtypes of its own. If it has a value of 1, then the subtype does have subtypes of its own.

The GetSubtypes method does not return metadata about descendants unless the OMI_ALL_DESCENDANTS flag is set.

Example 1: Standard Interface

The following is an example of how to issue the GetSubtypes method regardless of the programming environment. The request gets the subtypes for supertype DataTable.

supertype= "DataTable";
ns= "SAS";
flags= 0;
options= "";
rc = GetSubtypes(supertype,subtypes,ns,flags,options);

Here is an example of the output returned by the SAS Metadata Server:

<!-- XML string returned in the Subtypes parameter -->
<subtypes>
   <Type Id="PhysicalTable" Desc="Physical Storage Abstract Type" HasSubtypes="0"/>
   <Type Id="WorkTable" Desc="Work Tables" HasSubtypes="1"/>
   <Type Id="Join" Desc="Table Joins" HasSubtypes="0"/>
</subtypes>

Example 2: DoRequest Method

The following is an example of an XML string that shows how to format the request in example 1 for the INMETADATA parameter of the DoRequest method.

<!-- XML string for inMetadata= parameter of DoRequest method call -->

<GetSubtypes>
   <Supertype>DataTable</Supertype>
   <Subtypes/>
   <NS>SAS</NS>
   <Flags>0</Flags>
   <Options/>
</GetSubtypes>

Related Methods

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