meajinkya/ApexTriggerApproach.txt

## ApexTriggerApproach.txt
A good approach to follow for trigger development

Any trigger's logic can be looked at in three parts(as below) and the code for that should also be written based on those parts:
1. Trigger event detection
 This should go in the trigger where we write logic for trigger event detection and delegation to appropriate method in handler class.
2. Record filtering
 Record filtering can be done using a separate class which can have different methods for filtering for each action. It may happen that a filter can be applied to two different actions, for which we can reuse the same method for filtering.
3. Actions (Business logic)
 This should be typically done in a service class. The records filtered in step #2 can be passed on to the service class to perform actions like creating child records, updating parent record, etc on them.
	A good approach to follow for trigger development

	Any trigger's logic can be looked at in three parts(as below) and the code for that should also be written based on those parts:
	1. Trigger event detection
	This should go in the trigger where we write logic for trigger event detection and delegation to appropriate method in handler class.
	2. Record filtering
	Record filtering can be done using a separate class which can have different methods for filtering for each action. It may happen that a filter can be applied to two different actions, for which we can reuse the same method for filtering.
	3. Actions (Business logic)
	This should be typically done in a service class. The records filtered in step #2 can be passed on to the service class to perform actions like creating child records, updating parent record, etc on them.