Switch it up with Apex - TrailheadX 2018

https://developer.salesforce.com/trailheadx/sessions?q=a2q3A000001pyRtQAI#march-28

Recording: https://www.youtube.com/watch?v=cusUVO9IQjc

Transcript

2. Switch it up with Apex March 28, 2018
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4. Chris Peterson Senior Product Manager @ca_peterson Principal Engineer Jim Spagnola Senior Engineer @anand13s Anand Subramanian Insert photo here Insert photo here Insert photo here
5. Did you know Apex has a new compiler? You shouldn’t
6. Switch
7. Why we picked Switch • 17,000 Idea Exchange Points • Simplifies long if/else logic chains • Improve trigger flow with help of context enum • Most popular languages have some form of switching/pattern matching • Show off the new compiler
8. Values and Obstacles • Values ◦ Reduce code duplication ◦ Support Enums, String, Integer, Long ◦ Handle fields over polymorphic SObject types ◦ Familiar to developers from all background ◦ Leave the opportunity to expand Switch • Obstacles ◦ Case isn’t a keyword in Apex ◦ Why isn't it exactly like Java? No, I mean exactly.
9. switch on i { when 2, 3, 4 { System.debug('case 2 and 3 and 4'); } when 5, 6 { System.debug('case 5 and 6'); } when 7 { System.debug('case 7'); } when else { System.debug('default'); } } Behold Switch
10. Trailblazer Forum • “Hey that’s not Java.” • “I like it.” • “I don’t like it.”
11. Trailblazer Community • Code Coverage Requirements • case if -> when • Clarity { } • Trigger Enum
12. Thank you
13. DEMO UP NEXT Switch
14. switch on i { when 2, 3, 4 { System.debug('case 2 and 3 and 4'); } when 5, 6 { System.debug('case 5 and 6'); } when 7, 2 { // not allowed System.debug('case 7'); } when else { System.debug('default'); } } Switch Syntax
15. • List contains() / indexOf() 1,190 points Spring • Switch 17,000 points Summer • Count SOQL count() as a single row query 6,800 points Summer • Get RecordTypeInfo by API name 4,900 points Summer True to the Core
16. Roadmap What else is coming, and what we're thinking about
17. Performance
18. Performance Improvements! • Faster apex test runs as part of metadata deployments ◦ Especially if you use declarative customization tooling - like Flow • Up to 20% faster test runs by skipping code coverage collection • Compile on deploy ◦ Avoid "cold cache" of Apex bytecode after deployments or package install ◦ Enabled in production orgs ◦ Optional for others (scratch orgs, sandboxes, etc)
19. Secure development
20. Secure development Inspired by community-developed security-enforcing query builders fflib_QueryFactory qf = new fflib_QueryFactory(Contact.SObjectType) .assertIsAccessible() //CRUD check on Contact //for fields shown to a user - we need to check FLS .setEnforceFLS(true) .selectField('Description') //FLS checked //disable FLS enforcement - we're going to use this for internal system purposes .setEnforceFLS(false) .selectField('Value__c'); List<Contact> results = Database.query(qf.toSOQL()); From: FinancialForce fflib-apex-common. On github at https://github.com/financialforcedev/fflib-apex-common
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