Book Image

Mastering Application Development with Force.com

By : Kevin J. Poorman
Book Image

Mastering Application Development with Force.com

By: Kevin J. Poorman

Overview of this book

Force.com is an extremely powerful, scalable, and secure cloud platform, delivering a complete technology stack, ranging from databases and security to workflow and the user interface. With salesforce.com's Force.com cloud platform, you can build any business application and run it on your servers. The book will help you enhance your skillset and develop complex applications using Force.com. It gets you started with a quick refresher of Force.com's development tools and methodologies, and moves to an in-depth discussion of triggers, bulkification, DML order of operations, and trigger frameworks. Next, you will learn to use batchable and schedulable interfaces to process massive amounts of information asynchronously. You will also be introduced to Salesforce Lightning and cover components—including backend (apex) controllers, frontend (JavaScript) controllers, events, and attributes—in detail. Moving on, the book will focus on testing various apex components: what to test, when to write the tests, and—most importantly—how to test. Next, you will develop a changeset and use it to migrate your code from one org to another, and learn what other tools are out there for deploying metadata. You will also use command-line tools to authenticate and access the Force.com Rest sObject API and the Bulk sObject API; additionally, you will write a custom Rest endpoint, and learn how to structure a project so that multiple developers can work independently of each other without causing metadata conflicts. Finally, you will take an in-depth look at the overarching best practices for architecture (structure) and engineering (code) applications on the Force.com platform.
Table of Contents (16 chapters)
Mastering Application Development with Force.com
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Schedulable classes


As a companion to batchable interface, the Salesforce platform provides a schedulable interface. Schedulable classes are considered as asynchronous Apex, because the platform merely adds the job to the queue at the scheduled time. It does not promise that the job will actually run at the scheduled time, but it does promises that it will be queued at that time. The actual processing may take place nearly instantaneously, or at some point in the relatively near future, depending on system resource availability. Using the schedulable interface allows you to queue code at specific times or periodic intervals. This can be implemented either through the web user interface, or through apex code. Like the batchable interface, to utilize the schedulable functionality, you must implement the schedulable interface by implementing the execute()method. The execute() method must accept a single variable of the SchedulableContext type. Like it's Batchable cousin, SchedulableContext...