GridOffHeapEvictListener.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.util.offheap;

/**
 * Callback for whenever entries get evicted from off-heap store.
 */
public interface GridOffHeapEvictListener {
    /**
     * Eviction callback.
     *
     * @param part Entry partition
     * @param hash Hash.
     * @param keyBytes Key bytes.
     * @param valBytes Value bytes.
     */
    public void onEvict(int part, int hash, byte[] keyBytes, byte[] valBytes);

    /**
     * @return {@code True} if entry selected for eviction should be immediately removed.
     */
    public boolean removeEvicted();
}