You're reading from Salesforce Platform Enterprise Architecture- fourth edition A must-read guide to help you architect and deliver packaged applications for enterprise needs

Product type Paperback

Published in Mar 2023

Publisher Packt

ISBN-13 9781804619773

Length 712 pages

Edition 4th Edition

Languages

Java

Tools

Salesforce

Concepts

Solution Architecture

Author (1):

Andrew Fawcett

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Table of Contents (23) Chapters

Preface

1. Part I: Key Concepts for Application Development

2. Building and Publishing Your Application FREE CHAPTER

3. Leveraging Platform Features

4. Application Storage

5. Apex Execution and Separation of Concerns

6. Part II: Backend Logic Patterns

7. Application Service Layer

8. Application Domain Layer

9. Application Selector Layer

10. Additional Languages, Compute, and Data Services

11. Part III: Developing the Frontend

12. Building User Interfaces

13. User Interfaces and the Lightning Component Framework

14. Part IV: Extending, Scaling, and Testing an Application

15. Providing Integration and Extensibility

16. Asynchronous Processing and Big Data Volumes

17. Unit Testing

18. Source Control and Continuous Integration

19. Integrating with External Services

20. Adding AI with Einstein

21. Other Books You May Enjoy

22. Index

Managing limits

Normally, the total number of records retrieved within a single controller execution context is 50,000 records (in total across all SOQL queries executed). In addition, Visualforce components such as apex:dataTable and apex:repeat can only iterate over 1,000 items before a runtime exception is thrown.

At the time of writing, the readOnly attribute (specified on the apex:page component) changes this to 1 million records and 10,000 iterations within Visualforce components on the page (refer to the Salesforce documentation for the latest updates). As the name suggests, no updates to the database can occur, which basically means no DML at all. Note that queries are still governed by timeouts.

If you require a more granular elevation of the SOQL query rows governor, you can apply the @ReadOnly Apex attribute to a JavaScript remoting method in your controller, and not at the page level as described previously. Again, this method will not be able to use DML...