SimpleQueue.java

/**
 * Copyright 2016 Netflix, Inc.
 *
 * 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 io.reactivex.internal.fuseable;

/**
 * A minimalist queue interface without the method bloat of java.util.Collection and java.util.Queue.
 *
 * @param <T> the value type to enqueue and dequeue, not null
 */
public interface SimpleQueue<T> {

    boolean offer(T value);

    boolean offer(T v1, T v2);

    T poll() throws Exception;

    boolean isEmpty();

    void clear();
}