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/*
 * Copyright (c) 2016—2021 Andrei Tomashpolskiy and individual contributors.
 *
 * Licensed 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 bt.module;

import com.google.inject.BindingAnnotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Annotates individual message handlers,
 * that work with extended protocol message types.
 *
 * Each message type is assigned a unique name,
 * thus annotated value should be a
 * {@link java.util.Map}<{@link String}, {@link bt.protocol.handler.MessageHandler}<{@code ? extends}
 * {@link bt.protocol.extended.ExtendedMessage}>>.
 *
 * @since 1.0
 */
@Target({ ElementType.PARAMETER, ElementType.FIELD, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@BindingAnnotation
public @interface ExtendedMessageHandlers {}