public void setDomain(String domain) {
        this.domain = domain;
    }
<p>
The name of the domain in which the activity types have been registered.
</p>

@param domain
       The name of the domain in which the activity types have been registered.
aws-java-sdk-simpleworkflow/src/main/java/com/amazonaws/services/simpleworkflow/model/ListActivityTypesRequest.java