1 /*
2  * Copyright (C) 2010 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.database.DataSetObserver;
20 
21 import java.util.Collection;
22 
23 /**
24  * A suggestion cursor that delegates all methods to another SuggestionCursor.
25  */
26 public class SuggestionCursorWrapper extends AbstractSuggestionCursorWrapper {
27 
28     private final SuggestionCursor mCursor;
29 
SuggestionCursorWrapper(String userQuery, SuggestionCursor cursor)30     public SuggestionCursorWrapper(String userQuery, SuggestionCursor cursor) {
31         super(userQuery);
32         mCursor = cursor;
33     }
34 
close()35     public void close() {
36         if (mCursor != null) {
37             mCursor.close();
38         }
39     }
40 
getCount()41     public int getCount() {
42         return mCursor == null ? 0 : mCursor.getCount();
43     }
44 
getPosition()45     public int getPosition() {
46         return mCursor == null ? 0 : mCursor.getPosition();
47     }
48 
moveTo(int pos)49     public void moveTo(int pos) {
50         if (mCursor != null) {
51             mCursor.moveTo(pos);
52         }
53     }
54 
moveToNext()55     public boolean moveToNext() {
56         if (mCursor != null) {
57             return mCursor.moveToNext();
58         } else {
59             return false;
60         }
61     }
62 
registerDataSetObserver(DataSetObserver observer)63     public void registerDataSetObserver(DataSetObserver observer) {
64         if (mCursor != null) {
65             mCursor.registerDataSetObserver(observer);
66         }
67     }
68 
unregisterDataSetObserver(DataSetObserver observer)69     public void unregisterDataSetObserver(DataSetObserver observer) {
70         if (mCursor != null) {
71             mCursor.unregisterDataSetObserver(observer);
72         }
73     }
74 
75     @Override
current()76     protected SuggestionCursor current() {
77         return mCursor;
78     }
79 
getExtraColumns()80     public Collection<String> getExtraColumns() {
81         return mCursor.getExtraColumns();
82     }
83 
84 }
85