Declaration of the set of services that this component is capable of supplying. Each service declarared under the services element may be referenced by other component types as service dependecies or lifecycle stage depedencies. A container is responsible for the assembly of component types based on the connection of supply components to consumer components via a common service description.

    <services>

      <!-- 
      The service type is the classname of an interface and the
      version identifier qualifes the interface version.
      -->

      <service type="org.apache.SimpleService" 
        version="3.2">
        <attributes>
           <!--
           Attribute declarations may be included to qualify the 
           characteristics of the service provided by the component
           implementation.
           -->
           <attribute key="a-key" value="a-value"/>
        </attributes>
      </service>

    </services>