1. Toy example applications

Several toy example applications are provided to demonstrate the basic features of swift.

For convenience, you can download example databases: database.zip

1. Random number generator

GUI - generator frame

• A combobox for selecting a database into which the generated number is saved
• A button for generating a new number

GUI - viewer frame

• A label for showing the current status (database updated, random number generated, etc.)
• A label for showing the recently generated number

Backend

• generate() -> int: Generate a random number and return it
• write() -> bool: Save the given number into the database

2. Logger

GUI

• A read-only text field that prints out the log messages

Backend

Not required.

3. Poller

GUI

• A combobox for selecting a database into which the polled number is saved
• A spinbox for adjusting the polling period
• A label for showing the polled count (how many numbers have been polled): this will confidently show when the polling occurs
• A label for showing the recently polled number

Backend

• poll() -> int: Return a predictable number e.g. time.time() % 100
• write() -> bool: Save the given number into the database

4. Database manager

GUI

• A list whose each row shows the database name, path, and a button to remove the row from the list
• A button to add a row (new database)

Backend

Not required.

5. Data calculator

GUI

• A combobox for selecting the database from which the value of 'A' is fetched
• A combobox for selecting the database from which the value of 'B' is fetched
• A label showing the sum of recently fetched 'A' and 'B'
• A button for calculating the sum

Backend

• read() -> int: Read the given database and return the fetched number