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HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

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/*
 * Copyright 2018-present HiveMQ and the HiveMQ Community
 *
 * 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 com.hivemq.client.internal.util.collections;

import com.hivemq.client.internal.annotations.NotThreadSafe;
import org.jetbrains.annotations.NotNull;

/**
 * @author Silvio Giebl
 */
@NotThreadSafe
public class HandleList extends NodeList> {

    public static class Handle extends NodeList.Node> {

        private final @NotNull E element;

        Handle(@NotNull final E element) {
            this.element = element;
        }

        public @NotNull E getElement() {
            return element;
        }
    }

    public @NotNull Handle add(final @NotNull E element) {
        final Handle handle = new Handle<>(element);
        add(handle);
        return handle;
    }
}