1 /*
2  * Copyright (C) 2007 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 android.widget;
18 
19 /**
20  * <p>Defines a filterable behavior. A filterable class can have its data
21  * constrained by a filter. Filterable classes are usually
22  * {@link android.widget.Adapter} implementations.</p>
23  *
24  * @see android.widget.Filter
25  */
26 public interface Filterable {
27     /**
28      * <p>Returns a filter that can be used to constrain data with a filtering
29      * pattern.</p>
30      *
31      * <p>This method is usually implemented by {@link android.widget.Adapter}
32      * classes.</p>
33      *
34      * @return a filter used to constrain data
35      */
getFilter()36     Filter getFilter();
37 }
38