HP WBEM Services Software Developer's Kit for HP-UX Provider and Client Developer's Guide A.01

Introduction to WBEM, CIM, CIM Server, and Providers

Providers

Chapter 1 21

• enumerateInstances: returns all the instances of a class

• enumerateInstanceNames: returns the names of all instances of a

class (see the section on Key Values: Uniquely Specifying an Instance

for information about instance names)

• modifyInstance: replaces the values of speciﬁc properties of an

instance

• deleteInstance: deletes a speciﬁed instance

Method providers implement just one function: invokeMethod. This

function tells the provider to execute an extrinsic method on a speciﬁed

instance.

Implementing a provider for HP WBEM Services for HP-UX consists of

delivering the following three components:

• Deﬁnitions of the class or classes of objects (schema) that represent

the system resources to be managed. (See Chapter 3, Schema Design)

• A shared library containing code that implements the functions of

the chosen provider interface: instance and/or method (See Chapter

4, Provider Implementation.)

• Registration of the provider to inform the CIM Server of its

correspondence with the deﬁned schema. (See Provider Registration

and Naming later in this chapter.)

These steps will be discussed in the sections that follow.