001/*
002 * Copyright 2013 Alex Kasko (alexkasko.com)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.alexkasko.unsafe.offheap;
018
019/**
020 * Basic interface for off-heap long-indexed collections. Required for {@link com.alexkasko.unsafe.offheaplong.OffHeapLongBinarySearch}.
021 *
022 * @author alexkasko
023 * Date: 3/5/13
024 */
025public interface OffHeapAddressable {
026    /**
027     * Gets the element at position {@code index}
028     *
029     * @param index collection index
030     * @return long value
031     */
032    long get(long index);
033
034    /**
035     * Returns number of elements in collection
036     *
037     * @return number of elements in collection
038     */
039    long size();
040}