public Cursor query()

in notepad/app/src/main/java/com/example/android/notepad/NotePadProvider.java [98:136]

• 29 lines of code
• 5 McCabe index (conditional complexity)

    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
            String sortOrder) {
        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
        qb.setTables(NOTES_TABLE_NAME);

        switch (sUriMatcher.match(uri)) {
        case NOTES:
            qb.setProjectionMap(sNotesProjectionMap);
            break;

        case NOTE_ID:
            qb.setProjectionMap(sNotesProjectionMap);
            qb.appendWhere(NoteColumns._ID + "=" + uri.getPathSegments().get(1));
            break;

        case LIVE_FOLDER_NOTES:
            qb.setProjectionMap(sLiveFolderProjectionMap);
            break;

        default:
            throw new IllegalArgumentException("Unknown URI " + uri);
        }

        // If no sort order is specified use the default
        String orderBy;
        if (TextUtils.isEmpty(sortOrder)) {
            orderBy = NoteColumns.DEFAULT_SORT_ORDER;
        } else {
            orderBy = sortOrder;
        }

        // Get the database and run the query
        SQLiteDatabase db = mOpenHelper.getReadableDatabase();
        Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, orderBy);

        // Tell the cursor what uri to watch, so it knows when its source data changes
        c.setNotificationUri(getContext().getContentResolver(), uri);
        return c;
    }