ReuseList.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.ignite.internal.processors.cache.database.tree.reuse;

import org.apache.ignite.IgniteCheckedException;

/**
 * Reuse list.
 */
public interface ReuseList {
    /**
     * @param bag Reuse bag.
     * @throws IgniteCheckedException If failed.
     */
    public void addForRecycle(ReuseBag bag) throws IgniteCheckedException;

    /**
     * @return Page ID or {@code 0} if none available.
     * @throws IgniteCheckedException If failed.
     */
    public long takeRecycledPage() throws IgniteCheckedException;

    /**
     * @return Number of recycled pages it contains.
     * @throws IgniteCheckedException If failed.
     */
    public long recycledPagesCount() throws IgniteCheckedException;
}