1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package androidx.media.filterfw;
18
19import java.util.LinkedHashMap;
20import java.util.Map;
21
22/**
23 * This is a simple LRU cache that is used internally for managing repetitive objects.
24 */
25class SimpleCache<K, V> extends LinkedHashMap<K, V> {
26
27    private int mMaxEntries;
28
29    public SimpleCache(final int maxEntries) {
30        super(maxEntries + 1, 1f, true);
31        mMaxEntries = maxEntries;
32    }
33
34    @Override
35    protected boolean removeEldestEntry(final Map.Entry<K, V> eldest) {
36        return super.size() > mMaxEntries;
37    }
38}
39