stack/core/src/main/java/org/apache/usergrid/corepersistence/asyncevents/direct/BufferedQueue.java

/*
 * 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.usergrid.corepersistence.asyncevents.direct;


import java.util.List;
import java.util.function.Consumer;

/**
 * Created by peterajohnson on 9/8/17.
 */
public interface BufferedQueue<T> {

    /**
     * Set the consumer of these events
     * @param consumer
     */
    void setConsumer(Consumer<List<T>> consumer);

    /**
     * Offer an entity. May block
     *
     * @param t
     * @return
     */
    boolean offer(T t);

    /**
     * @return the current size of the queue
     */
    int size();

}