How can I implement error handling in a Data Access Object?

How can I implement error handling in a Data Access Object?

You can implement error handling in a Data Access Object (DAO) by using try-catch blocks to manage exceptions.

What types of errors should I handle in my DAO?

You should handle database connection errors, query execution errors, and data integrity violations.

Can you give me an example of a try-catch block in a DAO?

Sure! Here's a simple example:

public User getUserById(int id) {
    try {
        // Database query logic
    } catch (SQLException e) {
        // Handle SQL exception
    }
}

How can I log these errors for debugging?

You can use a logging framework like Log4j or SLF4J to log errors in your catch block.