Method isOpen

app/src/main/java/androidx/room/RoomDatabase.java:429–438

Returns true if database connection is open and initialized. @return true if the database connection is open, false otherwise.

()

     * @return true if the database connection is open, false otherwise.
     */
    public boolean isOpen() {
        // We need to special case for the auto closing database because mDatabase is the
        // underlying database and not the wrapped database.
        if (mAutoCloser != null) {
            return mAutoCloser.isActive();
        }

        final SupportSQLiteDatabase db = mDatabase;
        return db != null && db.isOpen();
    }

    /**
     * Closes the database if it is already open.