hazelcast-master/hazelcast/src/main/java/com/hazelcast/transaction/TransactionalSet.java
/*
 * Copyright (c) 2008-2023, Hazelcast, Inc. All Rights Reserved.
 *
 * 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.hazelcast.transaction;

import com.hazelcast.collection.ISet;
import com.hazelcast.config.SplitBrainProtectionConfig;

/**
 * Transactional implementation of {@link ISet}.
 * <p>
 * Supports split brain protection {@link SplitBrainProtectionConfig} since 3.10 in
 * cluster versions 3.10 and higher.
 *
 * @param <E> the type of elements maintained by this set
 */
public interface TransactionalSet<E> extends TransactionalObject {

    /**
     * Add new item to transactional set.
     *
     * @param e item added to transactional set
     * @return {@code true} if item is added successfully
     */
    boolean add(E e);

    /**
     * Remove item from transactional set.
     *
     * @param e item removed from transactional set
     * @return {@code true} if item is remove successfully
     */
    boolean remove(E e);

    /**
     * Returns the size of the set.
     *
     * @return the size of the set
     */
    int size();
}
