| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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.intellij.util.containers; |
| |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * Base interface for concurrent int key -> value:V map |
| * Null values are NOT allowed |
| * |
| * Methods are adapted from {@link java.util.concurrent.ConcurrentMap} to integer keys |
| * @see java.util.concurrent.ConcurrentMap |
| */ |
| public interface ConcurrentIntObjectMap<V> { |
| /** |
| * @return written value |
| */ |
| @NotNull |
| V cacheOrGet(int key, @NotNull V value); |
| boolean remove(int key, @NotNull V value); |
| boolean replace(int key, @NotNull V oldValue, @NotNull V newValue); |
| |
| // regular Map methods |
| V put(int key, @NotNull V value); |
| V get(int key); |
| V remove(int key); |
| boolean containsKey(int key); |
| void clear(); |
| @NotNull |
| Iterable<StripedLockIntObjectConcurrentHashMap.IntEntry<V>> entries(); |
| |
| @NotNull |
| int[] keys(); |
| |
| /** |
| * @return Approximate number of elements in the map. |
| * The usage is discouraged since |
| * First, in concurrent context it doesn't have much sense |
| * and Second, for weak- or soft- keyed maps it returns the total number of references |
| * rather than alive values because otherwise it would be too expensive |
| */ |
| int size(); |
| } |