40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.keyboard.internal;
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import com.android.inputmethod.keyboard.Key;
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import com.android.inputmethod.latin.utils.CollectionUtils;
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import java.util.HashMap;
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public final class KeysCache {
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private final HashMap<Key, Key> mMap = CollectionUtils.newHashMap();
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public void clear() {
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mMap.clear();
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}
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public Key get(final Key key) {
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final Key existingKey = mMap.get(key);
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if (existingKey != null) {
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// Reuse the existing element that equals to "key" without adding "key" to the map.
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return existingKey;
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}
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mMap.put(key, key);
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return key;
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}
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}
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