Apex Trigger Framework

Purpose

The framework standardizes trigger execution and keeps business logic in focused handler classes. Individual handlers can be enabled or disabled through metadata.

Implementation

Each trigger delegates to a handler. The base class routes the active trigger operation to the appropriate before or after method, with the relevant new and old records.

trigger ExampleTrigger on Example__c (before insert, before update) {
    new ExampleTriggerHandler().run();
}

public class ExampleTriggerHandler extends TriggerHandler {
    public override void beforeInsert(List<SObject> newRecords) {
        applyBusinessRules(newRecords);
    }

    public override void beforeUpdate(Map<Id, SObject> oldRecords, Map<Id, SObject> newRecords) {
        applyBusinessRules(newRecords.values());
    }
}

Production use

• Supports direct unit testing of handler behavior without firing a trigger.