Apex Developer Guide

Apex Developer Guide
Getting Started with Apex
Writing Apex
Running Apex
Invoking Apex
Anonymous Blocks
Triggers
Bulk Triggers
Trigger Syntax
Trigger Context Variables
Context Variable Considerations
Common Bulk Trigger Idioms
Defining Triggers
Triggers and Merge Statements
Triggers and Recovered Records
Triggers and Order of Execution
Operations That Don't Invoke Triggers
Entity and Field Considerations in Triggers
Triggers for Chatter Objects
Trigger Exceptions
Trigger and Bulk Request Best Practices
Asynchronous Apex
Exposing Apex Methods as SOAP Web Services
Exposing Apex Classes as REST Web Services
Apex Email Service
Using the InboundEmail Object
Visualforce Classes
JavaScript Remoting
Apex in AJAX
Apex Transactions and Governor Limits
Using Salesforce Features with Apex
Integration and Apex Utilities
Debugging, Testing, and Deploying Apex
Apex Language Reference
Appendices
Glossary
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Bulk Triggers

All triggers are bulk triggers by default, and can process multiple records at a time. You should always plan on processing more than one record at a time.

An Event object that is defined as recurring is not processed in bulk for insert, delete, or update triggers.

Note

Bulk triggers can handle both single record updates and bulk operations like:
  • Data import
  • Force.com Bulk API calls
  • Mass actions, such as record owner changes and deletes
  • Recursive Apex methods and triggers that invoke bulk DML statements