9 Implementing Programmatic Business Rules in Entity Objects

This chapter explains the key entity object events and features for implementing the most common kinds of business rules.

This chapter includes the following sections:

• Section 9.1, "Introduction to Programmatic Business Rules"

• Section 9.2, "Understanding the Validation Cycle"

• Section 9.3, "Using Method Validators"

• Section 9.4, "Assigning Programmatically-Derived Attribute Values"

• Section 9.5, "Undoing Pending Changes to an Entity Using the Refresh Method"

• Section 9.6, "Using View Objects for Validation"

• Section 9.7, "How to Access Related Entity Rows Using Association Accessors"

• Section 9.8, "How to Reference Information About the Authenticated User"

• Section 9.9, "How to Access Original Attribute Values"

• Section 9.10, "How to Store Information About the Current User Session"

• Section 9.11, "How to Access the Current Date and Time"

• Section 9.12, "How to Send Notifications Upon a Successful Commit"

• Section 9.13, "How to Conditionally Prevent an Entity Row from Being Removed"

• Section 9.14, "How to Implement Conditional Updatability for Attributes"

• Section 9.15, "Additional Resources"