Categories are the namespaces in which components that provide similar base functionality are grouped.
Client programs use the category namespaces in queries to retrieve function instances representing the resources being discovered. A query in Function Discovery retrieves one of the following:
- A collection of function instances in a specific category.
- A single function instance that has a specific ID.
For more information, see Function Discovery Queries.
Category Types
Function Discovery supports the following category types.
| Term | Description |
|---|
layered categories | Layered categories contain a collection of subcategories. The category name begins with the string "Layered\". |
provider categories | Provider categories contain Function Discovery providers, and are used by the Function Discovery runtime to determine which discovery providers to load. The category name begins with the string "Provider\". Client programs usually do not access or search on provider categories with the possible exception of system utility and test applications. |
See Also
Function Discovery Queries
Category Definitions
Subcategory Definitions
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Build date: 8/28/2008