public void setServiceNamespace(String serviceNamespace) {
        this.serviceNamespace = serviceNamespace;
    }
<p>
The namespace of the Amazon Web Services service that provides the resource, or a <code>custom-resource</code>.
</p>

@param serviceNamespace
       The namespace of the Amazon Web Services service that provides the resource, or a
       <code>custom-resource</code>.
@see ServiceNamespace
aws-java-sdk-applicationautoscaling/src/main/java/com/amazonaws/services/applicationautoscaling/model/ScalingActivity.java