1 /* 2 * Copyright (C) 2009 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.quicksearchbox; 18 19 import android.util.Log; 20 21 import java.util.HashSet; 22 23 /** 24 * A SuggestionCursor that is backed by a list of SuggestionPosition objects 25 * and doesn't allow duplicate suggestions. 26 */ 27 public class ListSuggestionCursorNoDuplicates extends ListSuggestionCursor { 28 29 private static final boolean DBG = false; 30 private static final String TAG = "QSB.ListSuggestionCursorNoDuplicates"; 31 32 private final HashSet<String> mSuggestionKeys; 33 34 public ListSuggestionCursorNoDuplicates(String userQuery) { 35 super(userQuery); 36 mSuggestionKeys = new HashSet<String>(); 37 } 38 39 @Override 40 public boolean add(Suggestion suggestion) { 41 String key = SuggestionUtils.getSuggestionKey(suggestion); 42 if (mSuggestionKeys.add(key)) { 43 return super.add(suggestion); 44 } else { 45 if (DBG) Log.d(TAG, "Rejecting duplicate " + key); 46 return false; 47 } 48 } 49 50 } 51
