Advanced Apex Programming for Salesforce.com and Force.com by Appleman, Dan -- Read -- Imperial Library of Trantor

Index

Table of Contents Introduction Note to Readers of Previous Editions Sample Code About the Code Listings Part I – Thinking in Apex

Beyond Syntax

1 – The Execution Context

Running Apex Code

2 – Static Variables

Maintaining Data Across Trigger Invocations Caching Data Controlling Program Flow

3 – Limits

The Nature of Limits Dealing with Limits Other Limits Thinking of Limits

4 – Bulk Patterns

An Interesting Challenge Building to Tests Evaluating Worst-Case Conditions A Common Solution Query Optimization Into the Future Batch Apex Other Approaches Bulk Patterns and Web Services

Part II – Application Architecture and Patterns 5 – Fun With Collections

Using Maps to Obtain Sets Grouping Objects Case Sensitivity Avoid Using Objects as Keys Keeping Track of Objects to Update

6 – Triggers

One Trigger to Rule Them All Architecture and Triggers Controlling Program Flow Really Controlling Program Flow Detecting Field Changes Additional Trigger Considerations

7 – Going Asynchronous

Setting the Stage A Simple (but Flawed) Implementation Industrial Strength Future Calls Going Asynchronous with Batch Apex Going Asynchronous with Queueable Apex Centralized Asynchronous Processing Going Asynchronous with Scheduled Apex

8 – Concurrency

Introduction to Concurrency Optimistic Concurrency Pessimistic Record Locking (For Update) Handling DML lock errors

Part III – Testing, Debugging and Deployment 9 – Debugging and Diagnostics

Reproducing Problems Diagnostic Data Instrumenting Apex - I Centralized Exception Handling Instrumenting Apex – II Thinking about Debugging and Diagnostics

10 – Unit Tests

Why Johnny Won’t Test Testing in the Real World Common Test Design Patterns Testing in Packages

11 – Designing for Packages

Dynamic SOQL and Dynamic Apex Person Accounts Other Best Practices

12 – Maintaining Apex

The Nightmare Scenario Fun with Sandboxes Source Control Continuous Integration Salesforce.com Updates Using Salesforce.com Support

Conclusion Acknowledgements and Dedication About the Cover Online Courses by Dan Appleman Full Circle Insights Also by the Author