Products Actions Documentation Smart Home Docs Reference smarthome. Constants smarthome.Constants is a namespace that encapsulates a few common enums. Index Enumerations HttpOperation Protocol RadioType TcpOperation Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated July 8, 2019.