How to avoid recursive trigger execution in Salesforce

How to avoid recursive trigger execution in Salesforce

Apex Trigger – Apex Trigger is a piece of code that executes Before and After a record is Inserted, Updated, Deleted in a Database.

What is Recursion in Trigger?

Recursion is when same code is executing again and again & it exceeds the “Governor Limit”.

AccountTriggerHandler Helper Class:-

public Class AccountTriggerHandler{

//Trigger execution check variable

public static Boolean runOnce = true;

//On before update

public void onBeforeUpdate(map<Id, Account> mapNewAccount, map<Id, Account> mapOldAccount){

//Write your logic here

System.debug('Is Before Update');

}

//On after update

public void onAfterUpdate(map<Id, Account> mapNewAccount, map<Id, Account> mapOldAccount){

Update [SELECT Id, Name FROM Account WHERE Id IN: mapNewAccount.keyset()];

AccountTriggerHelper.runOnce = true;

System.debug('Is After Update');

}

AccountTrigger in Account Object:-

trigger AccountTrigger on Account(before Update, after Update) {
    
    AccountTriggerHandler handler = newAccountTriggerHandler();
    
    if(Trigger.isBefore && Trigger.isUpdate && handler.runOnce){
        handler.onBeforeUpdate(Trigger.newMap, Trigger.OldMap);     
    }
    
    if(Trigger.isAfter && Trigger.isUpdate && handler.runOnce){
        handler.runOnce = false;
        handler.onAfterUpdate(Trigger.newMap, Trigger.OldMap);
    }
}