Maximize the performance of your Apex code by utilizing Salesforce Platform Cache! Free to try and a Trailhead module to get you started

1. Maximize your Apex Performance
with Platform Cache
Dreamforce 2018
Adam Olshansky

2. 513 14X
Adam Olshansky
Salesforce Developer,
@adam17amo
adam@adamtoarchitect.com
bit.ly/lightningmigration

3. This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any of the
assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-looking statements we
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statements concerning new, planned, or upgraded services or technology developments and customer contracts or use of our services.
The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our service, new
products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of growth, interruptions or delays
in our Web hosting, breach of our security measures, the outcome of any litigation, risks associated with completed and any possible mergers and acquisitions, the
immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate our employees and manage our growth, new
releases of our service and successful customer deployment, our limited history reselling non-salesforce.com products, and utilization and selling to larger
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Salesforce.com, inc. assumes no obligation and does not intend to update these forward-looking statements.
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Forward-Looking Statement

4. Agenda
What is a Cache?
What is Salesforce Platform Cache?
Before/After Feature Comparison
CacheBuilder Interface
Considerations
Summary and Next Steps

5. Don’t have to search every time!
Easily accessible when needed
Squirrels have the right idea
Cache

6. Previous Caching Options
Custom setting
sObjects
Inflexible
Useful but limited

7. Salesforce Platform Cache
Salesforce shares the wealth!

8. Benefits
Why do we care?

9. Benefits
Why do we care?

10. Salesforce Platform Cache
Org Cache
• Global values for all users
• Exists for up to 48 hours
One for All

11. Salesforce Platform Cache
Everyone is a snowflake
Session Cache
• Specific to user sessions
• Expires in 8 hours or if session ends

12. Salesforce Platform Cache
Multiple Options
Org Cache Session Cache
Values Same for all users Unique for each user
Default Expiration 48 hours 8 hours
Persistence Continuous Expires at end of session
Use Cases Transit schedule,
Top sales rankings
Current user’s shopping cart,
Distance from user’s location to
set of customers

13. Salesforce Platform Cache
Piece of the pie

14. Salesforce Platform Cache
Setup Menu

15. Create New Partition
Specify Session and Org Cache amounts
Increments of 5MB
Point-and-click

16. Use Case
Want to get Top 10 by Annual Revenue
Want to get number of VIP Accounts in each region (7 regions)

17. Demo
Top Accounts
Regional Accounts
Watch the Magic Happen!

18. How It Works
Peek behind the curtain

19. How It Works
Cache is a Map
Key is {!PartitionName +
KeyName}
Value is value you want to
cache
Set the partition as a variable
Use keyname to get value
Cast to data type
If value isn’t in cache, it’s null
Just a Map

21. Under the Hood
See my storage

22. Salesforce Platform Cache

23. CacheBuilder Interface
Uses 1 method with 1 parameter
Use the class and key to request
Interface checks if value is cached
if cached
• return value
else
• calculate, cache, and return
Make Salesforce do the work for you

25. CacheBuilder Diagnostics

26. Cache Considerations

27. Cache Considerations
Keep in mind
Cache isn’t persisted so there could be data loss
Cache is always invalidated when Apex classes change
Need to handle Cache misses
Session cache lasts up to 8 hours
Org cache lasts up to 48 hours
30 MB is 30 MB

28. Summary

29. Summary
Cache refers to part of memory where complex values can be accessed later quickly
Platform Cache can massively improve Apex Performance time
Can store values for a single session or for the entire org
No constraints on data type (If you can cast it, you can cache it!)
Need to handle misses and periodically update cache
CacheBuilder interface provided to simplify some of the process
What we learned

30. Trailhead Badges
Platform Cache Basics Large Data Volumes

31. Resources
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/
apex_cache_namespace_overview.htm
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/
apex_namespace_cache.htm
https://developer.salesforce.com/blogs/engineering/2015/05/platform-cache.html
Find out more