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Expressive Design (in 20 minutes)
The document discusses different approaches to sending a CSV report as an email attachment using Java. It shows three attempts using different Java email libraries and techniques: 1. The first try uses JavaMail API classes like MimeMessage and MimeBodyPart to attach the CSV file. 2. The second try introduces a MailService class and uses an Attachment class to simplify the process. 3. The third try uses a fluent interface pattern with the MailService to further streamline attaching the CSV file. The document then compares the techniques and discusses using an idiomatic versus domain-driven design approach when modeling domains with programming languages.
