| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * 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.android.inputmethod.keyboard.internal; |
| |
| import com.android.inputmethod.keyboard.Key; |
| import com.android.inputmethod.latin.CollectionUtils; |
| |
| import java.util.HashMap; |
| |
| public final class KeysCache { |
| private final HashMap<Key, Key> mMap = CollectionUtils.newHashMap(); |
| |
| public void clear() { |
| mMap.clear(); |
| } |
| |
| public Key get(final Key key) { |
| final Key existingKey = mMap.get(key); |
| if (existingKey != null) { |
| // Reuse the existing element that equals to "key" without adding "key" to the map. |
| return existingKey; |
| } |
| mMap.put(key, key); |
| return key; |
| } |
| } |