public void setSourceMember(String sourceMember) {
        this.sourceMember = sourceMember;
    }
<p>
The Amazon Resource Name (ARN) of a resource in the blue environment.
</p>

@param sourceMember
       The Amazon Resource Name (ARN) of a resource in the blue environment.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/SwitchoverDetail.java