@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
final SQLiteDatabase db = dbHelper.getWritableDatabase();
final int match = uriMatcher.match(uri);
int rowsDeleted;
switch (match) {
case BOOK:
rowsDeleted =
db.delete(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry.TABLE_NAME,
selection,
selectionArgs);
break;
case AUTHOR:
rowsDeleted =
db.delete(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.AuthorEntry.TABLE_NAME,
selection,
selectionArgs);
break;
case CATEGORY:
rowsDeleted =
db.delete(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.CategoryEntry
.TABLE_NAME,
selection,
selectionArgs);
break;
case BOOK_ID:
rowsDeleted =
db.delete(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry.TABLE_NAME,
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry._ID
+ " = '"
+ ContentUris.parseId(uri)
+ "'",
selectionArgs);
break;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
// Because a null deletes all rows
if (selection == null || rowsDeleted != 0) {
getContext().getContentResolver().notifyChange(uri, null);
}
return rowsDeleted;
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
final SQLiteDatabase db = dbHelper.getWritableDatabase();
final int match = uriMatcher.match(uri);
int rowsUpdated;
switch (match) {
case BOOK:
rowsUpdated =
db.update(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry.TABLE_NAME,
values,
selection,
selectionArgs);
break;
case AUTHOR:
rowsUpdated =
db.update(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.AuthorEntry.TABLE_NAME,
values,
selection,
selectionArgs);
break;
case CATEGORY:
rowsUpdated =
db.update(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.CategoryEntry
.TABLE_NAME,
values,
selection,
selectionArgs);
break;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
if (rowsUpdated != 0) {
getContext().getContentResolver().notifyChange(uri, null);
}
return rowsUpdated;
}
@Override
public Uri insert(Uri uri, ContentValues values) {
final SQLiteDatabase db = dbHelper.getWritableDatabase();
final int match = uriMatcher.match(uri);
Uri returnUri;
switch (match) {
case BOOK:
{
long _id =
db.insert(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry.TABLE_NAME,
null,
values);
if (_id > 0) {
returnUri =
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry.buildBookUri(
_id);
} else {
throw new android.database.SQLException("Failed to insert row into " + uri);
}
getContext()
.getContentResolver()
.notifyChange(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.BookEntry
.buildFullBookUri(_id),
null);
break;
}
case AUTHOR:
{
long _id =
db.insert(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.AuthorEntry
.TABLE_NAME,
null,
values);
if (_id > 0)
returnUri =
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.AuthorEntry
.buildAuthorUri(values.getAsLong("_id"));
else throw new android.database.SQLException("Failed to insert row into " + uri);
break;
}
case CATEGORY:
{
long _id =
db.insert(
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.CategoryEntry
.TABLE_NAME,
null,
values);
if (_id > 0)
returnUri =
com.awesome.byunghwa.app.alexandria.data.AlexandriaContract.CategoryEntry
.buildCategoryUri(values.getAsLong("_id"));
else throw new android.database.SQLException("Failed to insert row into " + uri);
break;
}
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
return returnUri;
}