1 /*
2  * Copyright (C) 2006 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.database;
18 
19 import android.os.Bundle;
20 import android.os.IBinder;
21 import android.os.IInterface;
22 import android.os.RemoteException;
23 
24 /**
25  * This interface provides a low-level way to pass bulk cursor data across
26  * both process and language boundaries. Application code should use the Cursor
27  * interface directly.
28  *
29  * {@hide}
30  */
31 public interface IBulkCursor extends IInterface  {
32     /**
33      * Gets a cursor window that contains the specified position.
34      * The window will contain a range of rows around the specified position.
35      */
getWindow(int position)36     public CursorWindow getWindow(int position) throws RemoteException;
37 
38     /**
39      * Notifies the cursor that the position has changed.
40      * Only called when {@link #getWantsAllOnMoveCalls()} returns true.
41      *
42      * @param position The new position
43      */
onMove(int position)44     public void onMove(int position) throws RemoteException;
45 
deactivate()46     public void deactivate() throws RemoteException;
47 
close()48     public void close() throws RemoteException;
49 
requery(IContentObserver observer)50     public int requery(IContentObserver observer) throws RemoteException;
51 
getExtras()52     Bundle getExtras() throws RemoteException;
53 
respond(Bundle extras)54     Bundle respond(Bundle extras) throws RemoteException;
55 
56     /* IPC constants */
57     static final String descriptor = "android.content.IBulkCursor";
58 
59     static final int GET_CURSOR_WINDOW_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION;
60     static final int DEACTIVATE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 1;
61     static final int REQUERY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 2;
62     static final int ON_MOVE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 3;
63     static final int GET_EXTRAS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 4;
64     static final int RESPOND_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 5;
65     static final int CLOSE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 6;
66 }
67