| /* |
| * 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.ignite.stream.jms11; |
| |
| import java.util.Map; |
| import javax.jms.Message; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Implement this interface to transform from a {@link Message} to a set of cache entries in the form of a {@link Map}. |
| * |
| * @param <T> The type of JMS Message. |
| * @param <K> The type of the cache key. |
| * @param <V> The type of the cache value. |
| * @author Raul Kripalani |
| */ |
| public interface MessageTransformer<T extends Message, K, V> { |
| /** |
| * Transformation function. |
| * |
| * @param message The message received from the JMS broker. |
| * @return Set of cache entries to add to the cache. It could be empty or null if the message should be skipped. |
| */ |
| @Nullable Map<K, V> apply(T message); |
| |
| } |