| /* |
| * 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.solr.client.solrj.util; |
| |
| /** |
| * Listener for async requests |
| * |
| * @param <T> The result type returned by the {@code onSuccess} method |
| * @deprecated Use the async variants that return CompletableFuture. |
| */ |
| @Deprecated |
| public interface AsyncListener<T> { |
| /** Callback method invoked before processing the request */ |
| default void onStart() {} |
| |
| /** Callback method invoked when the request completes successfully */ |
| void onSuccess(T t); |
| |
| /** Callback method invoked when the request completes in failure */ |
| void onFailure(Throwable throwable); |
| } |