PetProvider.java 文件源码

/**
 * ********** UPDATE ***********
 *
 * @param uri
 * @param values
 * @param selection
 * @param selectionArgs
 * @return
 */
@Override
public int update(@NonNull Uri uri, @Nullable ContentValues values,
                  @Nullable String selection, @Nullable String[] selectionArgs) {

    final int match = sUriMathcer.match(uri);
    switch (match) {
        case PETS:
            return updatePet(uri, values, selection, selectionArgs);
        case PETS_ID:
            // For PET_ID extract the pet ID from the URI
            String id = String.valueOf(ContentUris.parseId(uri));
            selection = PetEntry._ID + "=?";
            selectionArgs = new String[]{id};
            return updatePet(uri, values, selection, selectionArgs);
        default:
            throw new IllegalArgumentException("Update is not supported for " + uri);
    }
}