Triggers and Managing Trigger Execution

In this chapter, I want to discuss Apex triggers and correctly managing and developing a structured execution framework for using triggers within Apex.

Triggers are where most developers start working in Apex on the Salesforce Platform, and I would personally estimate that’s where the majority of Apex bugs are found. I think there are a few reasons for this:

• Triggers demand bulkification, and a small resource leak can easily break a governor limit
• Triggers often fire off other save processes that themselves may fail or over-consume resources
• Triggers can be impacted by administrative changes more than other areas of code (validation, processes, flows, and so on)
• As triggers are the first thing many developers touch, they are the most prone to bugs due to inexperience

In this chapter, we will cover the following topics:

• How triggers operate
• The Salesforce save order of execution
• Best practices...