Content Comparison

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1. Create the handler class by extending the USYD_TriggerHandlerBase class.

2. Create include a constructor method which carries a String parameter to pass/contain the trigger name (which can be automatically determined from the trigger body).

3. Override the applicable events (methods) that need to be implemented/executed (i.e. beforeInsert, beforeUpdate, etc.).

4. Write the business logic. It is recommended to have the business logic written in a separate method and invoke it from the overridden event/method, rather than in the event itself. This promotes separation of event invocation from business logic. The developer may also opt to have business logic written in a separate class and just invoke it from the applicable events.
   Sample

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1. Trigger Handler Class:

   Code Block
   language java
   //AccountTriggerHandler.cls public class AccountTriggerHandler extends USYD_TriggerHandlerBase{ //constructor as explained in step #2 public TriggerTestTriggerHandler(String triggerName) { super(triggerName); } //overridden events as described in step #3 public override void beforeInsert(List<sObject> newRecords){ for (Account record : (Account[])newRecords) { //invoke before insert business logic as described in step #4 } } //overridden events as described in step #3 public override void beforeUpdate(List<sObject> oldRecords, List<sObject> newRecords, Map<ID, sObject> oldRecordMap, Map<ID, sObject> newRecordMap){ for (Account record : (Account[])newRecords) { //invoke before update business logic as described in step #4 } } }

In the trigger code, determine the name of the current trigger by having the this code just before invoking the trigger handler class: String triggerName = String.valueOf(this).split(':')[0];