com.landawn.abacus.pool.KeyedObjectPool Maven / Gradle / Ivy

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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.

There is a newer version: 5.2.4

/*
 * Copyright (C) 2015 HaiYang Li
 *
 * 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.landawn.abacus.pool;

import java.util.Collection;
import java.util.Set;

/**
 *
 * @author Haiyang Li
 * @param  the key type
 * @param 
 * @since 0.8
 */
public interface KeyedObjectPool extends Pool {

    /**
     *
     * @param key
     * @param e
     * @return boolean
     */
    boolean put(K key, E e);

    /**
     *
     * @param key
     * @param e
     * @param autoDestroyOnFailedToPut
     * @return boolean
     */
    boolean put(K key, E e, boolean autoDestroyOnFailedToPut);

    /**
     *
     * @param key
     * @return E
     */
    E get(K key);

    /**
     *
     * @param key
     * @return E
     */
    E remove(K key);

    /**
     * Get but don't update last access time.
     *
     * @param key
     * @return E
     */
    E peek(K key);

    /**
     *
     * @return Set
     */
    Set keySet();

    /**
     *
     * @return Collection
     */
    Collection values();

    /**
     *
     * @param key
     * @return boolean
     */
    boolean containsKey(K key);

    /**
     *
     * @param e
     * @return boolean
     */
    boolean containsValue(E e);

    /**
     * The Interface MemoryMeasure.
     *
     * @param  the key type
     * @param 
     */
    public interface MemoryMeasure {

        /**
         *
         * @param key
         * @param e
         * @return
         */
        long sizeOf(K key, E e);
    }
}