Kafka for Developers - Data Contracts Using Schema Registry - Add a Timestamp, Decimal Logical Type to the CoffeeOrder S

The video tutorial explores the implementation of logical types in a coffee order schema using Avro. It covers defining order time with timestamp logical type and cost with decimal logical type. The tutorial demonstrates generating Avro classes, resolving errors, and validating schema changes. It also addresses handling compilation issues in Gradle and Maven projects. Finally, it shows how to publish and consume coffee orders, including converting UTC to local time.

What logical type is used to represent the order time in the coffee order schema?

• String

• Timestamp

• Integer

• Boolean

Which logical type is used to represent the cost in the coffee order schema?

• Double

• Float

• Decimal

• String

What is the precision and scale used for the decimal logical type in the schema?

• Precision 3, Scale 2

• Precision 4, Scale 1

• Precision 2, Scale 3

• Precision 1, Scale 4

What is the first step in generating Avro classes for schema changes?

• Restart the server

• Compile the code

• Click on Generate Avro

• Run the application

What should you do if the new fields are not visible in the generated Avro classes?

• Reinstall the software

• Ignore the issue

• Delete the classes and regenerate

• Restart the computer

What is the recommended action if Gradle does not rerun a task due to it being up-to-date?

• Reinstall Gradle

• Use the --rerun-tasks flag

• Restart the IDE

• Clear the cache

Which Java class is used to represent the order time in the generated Avro classes?

• LocalDate

• Calendar

• Date

• Instant

What should you do if you encounter compilation issues in your Gradle project?

• Reinstall the project

• Restart the computer

• Import the necessary classes

• Ignore the errors

How can you derive the local time from a UTC timestamp in Java?

• Using LocalDateTime.ofInstant

• Using SimpleDateFormat

• Using Calendar

• Using Date

What is the time difference between CST and UTC as mentioned in the lecture?

• 4 hours

• 3 hours

• 5 hours

• 6 hours