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      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 
     17 package com.android.inputmethod.latin;
     18 
     19 import android.content.Context;
     20 
     21 import com.android.inputmethod.keyboard.ProximityInfo;
     22 
     23 public class SynchronouslyLoadedContactsDictionary extends ContactsDictionary {
     24     private boolean mClosed;
     25 
     26     public SynchronouslyLoadedContactsDictionary(final Context context) {
     27         super(context, Suggest.DIC_CONTACTS);
     28         mClosed = false;
     29     }
     30 
     31     @Override
     32     public synchronized void getWords(final WordComposer codes,
     33             final CharSequence prevWordForBigrams, final WordCallback callback,
     34             final ProximityInfo proximityInfo) {
     35         blockingReloadDictionaryIfRequired();
     36         getWordsInner(codes, prevWordForBigrams, callback, proximityInfo);
     37     }
     38 
     39     @Override
     40     public synchronized boolean isValidWord(CharSequence word) {
     41         blockingReloadDictionaryIfRequired();
     42         return getWordFrequency(word) > -1;
     43     }
     44 
     45     // Protect against multiple closing
     46     @Override
     47     public synchronized void close() {
     48         // Actually with the current implementation of ContactsDictionary it's safe to close
     49         // several times, so the following protection is really only for foolproofing
     50         if (mClosed) return;
     51         mClosed = true;
     52         super.close();
     53     }
     54 }
     55