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Episode 13 - Advanced Apex Triggers

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Episode 13 - Advanced Apex Triggers

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Writing Advance Apex Triggers in Salesforce

Writing Advance Apex Triggers in Salesforce

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Episode 13 - Advanced Apex Triggers

  1. 1. Path to Code Begin Your Salesforce Coding Adventure
  2. 2. Episode 13 Writing Advanced Triggers in Apex
  3. 3. • Enterprise Solutions Architect • Global Community Speaker Jigar Shah @jigarshah189
  4. 4. Agenda • Challenges with Triggers • Trigger Patterns to the Rescue • Anatomy of a Trigger Pattern • Implementing an Advanced Trigger Pattern • Understanding the Order of Execution • Q&A
  5. 5. Some Housekeeping Rules… • Mute your mic • Keep adding questions in Zoom Q&A Window • No questions are silly! • Questions will be answered in the last 15 mins of this session
  6. 6. General Trigger Implementation sObject Trigger 1 Trigger 2
  7. 7. Challenges with Triggers 1. Maintenance heavy complex implementations 2. Non deterministic execution sequence for multiple triggers on same events 3. Recursive execution resulting in Infinite Loops
  8. 8. Handler Pattern to the Rescue Proven design pattern enabling efficient implementation of Apex triggers to overcome common implementation pitfalls
  9. 9. Anatomy of a Handler Pattern sObject Trigger Handler Apex Class Apex Class Clean Trigger Implementation Controlled Delegation Business Logic & Utility
  10. 10. Benefits of Handler Pattern  Enforces One Trigger Per Object rule to drive maintainability  Enables clean code  Promotes code reusability  Drives deterministic execution sequence of triggers  Eradicates occurrence of infinite loops
  11. 11. Demo 1 Implementing a Trigger Handler Pattern
  12. 12. Understanding Order of Execution Courtesy - http://santanuboral.blogspot.com/
  13. 13. Resources  Apex Triggers  Triggers & Order of Execution  Trigger Patterns for Tidy Streamlined Bulkified Triggers (Blog)
  14. 14. Trailhead Modules Apex Triggers
  15. 15. Q & A
  16. 16. Thank You
  17. 17. Subscribe

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