ContentProviderNativepublic abstract class ContentProviderNative extends android.os.Binder implements IContentProvider
| Fields Summary |
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| private static final String | TAG |
| Constructors Summary |
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public ContentProviderNative()
attachInterface(this, descriptor);
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| Methods Summary |
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| public android.os.IBinder | asBinder()
return this;
| | public static IContentProvider | asInterface(android.os.IBinder obj)Cast a Binder object into a content resolver interface, generating
a proxy if needed.
if (obj == null) {
return null;
}
IContentProvider in =
(IContentProvider)obj.queryLocalInterface(descriptor);
if (in != null) {
return in;
}
return new ContentProviderProxy(obj);
| | public boolean | onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags)
try {
switch (code) {
case QUERY_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
int num = data.readInt();
String[] projection = null;
if (num > 0) {
projection = new String[num];
for (int i = 0; i < num; i++) {
projection[i] = data.readString();
}
}
String selection = data.readString();
num = data.readInt();
String[] selectionArgs = null;
if (num > 0) {
selectionArgs = new String[num];
for (int i = 0; i < num; i++) {
selectionArgs[i] = data.readString();
}
}
String sortOrder = data.readString();
IContentObserver observer = IContentObserver.Stub.
asInterface(data.readStrongBinder());
CursorWindow window = CursorWindow.CREATOR.createFromParcel(data);
IBulkCursor bulkCursor = bulkQuery(url, projection, selection,
selectionArgs, sortOrder, observer, window);
reply.writeNoException();
if (bulkCursor != null) {
reply.writeStrongBinder(bulkCursor.asBinder());
} else {
reply.writeStrongBinder(null);
}
return true;
}
case GET_TYPE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
String type = getType(url);
reply.writeNoException();
reply.writeString(type);
return true;
}
case INSERT_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
ContentValues values = ContentValues.CREATOR.createFromParcel(data);
Uri out = insert(url, values);
reply.writeNoException();
Uri.writeToParcel(reply, out);
return true;
}
case BULK_INSERT_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
ContentValues[] values = data.createTypedArray(ContentValues.CREATOR);
int count = bulkInsert(url, values);
reply.writeNoException();
reply.writeInt(count);
return true;
}
case DELETE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
String selection = data.readString();
String[] selectionArgs = data.readStringArray();
int count = delete(url, selection, selectionArgs);
reply.writeNoException();
reply.writeInt(count);
return true;
}
case UPDATE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
ContentValues values = ContentValues.CREATOR.createFromParcel(data);
String selection = data.readString();
String[] selectionArgs = data.readStringArray();
int count = update(url, values, selection, selectionArgs);
reply.writeNoException();
reply.writeInt(count);
return true;
}
case OPEN_FILE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
String mode = data.readString();
ParcelFileDescriptor fd;
fd = openFile(url, mode);
reply.writeNoException();
if (fd != null) {
reply.writeInt(1);
fd.writeToParcel(reply,
Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
} else {
reply.writeInt(0);
}
return true;
}
case OPEN_ASSET_FILE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
String mode = data.readString();
AssetFileDescriptor fd;
fd = openAssetFile(url, mode);
reply.writeNoException();
if (fd != null) {
reply.writeInt(1);
fd.writeToParcel(reply,
Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
} else {
reply.writeInt(0);
}
return true;
}
case GET_SYNC_ADAPTER_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
ISyncAdapter sa = getSyncAdapter();
reply.writeNoException();
reply.writeStrongBinder(sa != null ? sa.asBinder() : null);
return true;
}
}
} catch (Exception e) {
DatabaseUtils.writeExceptionToParcel(reply, e);
return true;
}
return super.onTransact(code, data, reply, flags);
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