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
17package android.provider;
18
19import android.content.ContentResolver;
20import android.content.Intent;
21
22/**
23 * These are standard columns for openable URIs. Providers that serve openable
24 * URIs <em>must</em> support at least these columns when queried.
25 * <p>
26 * To find the content type of a URI, use
27 * {@link ContentResolver#getType(android.net.Uri)}.
28 *
29 * @see Intent#CATEGORY_OPENABLE
30 */
31public interface OpenableColumns {
32
33    /**
34     * The human-friendly name of file. If this is not provided then the name should default to the
35     * the last segment of the file's URI.
36     */
37    public static final String DISPLAY_NAME = "_display_name";
38
39    /**
40     * The number of bytes in the file identified by the openable URI. Null if unknown.
41     */
42    public static final String SIZE = "_size";
43}
44