2 * Copyright (c) 2010-2023 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.enphase.internal;
15 import org.eclipse.jdt.annotation.NonNullByDefault;
18 * Service that keeps track of host names/ip addresses of discovered Envoy devices.
20 * @author Hilbrand Bouwkamp - Initial contribution
23 public interface EnvoyHostAddressCache {
26 * Returns the known host name/ip address for the device with the given serial number.
27 * If not known an empty string is returned.
29 * @param serialNumber serial number of device to get host address for
30 * @return the known host address or an empty string if not known
32 String getLastKnownHostAddress(String serialNumber);