This is an automated email from the ASF dual-hosted git repository. liujun pushed a commit to branch 3.0-k8s in repository https://gitbox.apache.org/repos/asf/dubbo.git
commit 780fe21e6897c24b3003d66845c9c80feb9d4964 Author: ken.lj <[email protected]> AuthorDate: Fri Jan 15 17:19:55 2021 +0800 add back instance metadata listener --- .../metadata/InstanceMetadataChangedListener.java | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/InstanceMetadataChangedListener.java b/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/InstanceMetadataChangedListener.java new file mode 100644 index 0000000..5536e53 --- /dev/null +++ b/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/InstanceMetadataChangedListener.java @@ -0,0 +1,35 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.dubbo.metadata; + +public interface InstanceMetadataChangedListener { + /** + * Call when metadata in provider side update <p/> + * Used to notify consumer to update metadata of ServiceInstance + * + * @param metadata latest metadata + */ + void onEvent(String metadata); + + /** + * Echo test + * Used to check consumer still online + */ + default String echo(String msg) { + return msg; + } +}
