Demo to have performance gains using Platform Cache

1. Noida TrailBlazers Group
TrailheaDX 2020
Welcome

2. Sensitivity: Internal & Restricted
Increase your Salesforce Performance
using Lightning Platform Cache
Vineet Goel, Lead Salesforce Consultant
QA Infotech Software Services Limited
@vineet1817
Email: vineet1817@gmail.com
Blogging at: https://vineetgoelcloudblog.wordpress.com/

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these forward-looking statements.

4. Agenda
● Cache
● Caching Options in Salesforce
● Salesforce Platform Cache
● Benefits
● Types of Lightning Platform Cache
● Demo
● Cache Builder
● Use Cases
● Key Points
● References
● Q & A

5. Cache
Caching is very important part of any application. In this modern times, cache helps end
users experience better performance and allows processes to execute faster.
How does caching enhance end user experience?
● Caching reduces database consumption, frees up critical resources for other
processes.
● A cache stores data in-memory, this make retrieval very fast.
● Cached is data closer to where the data is required i.e, processing or presentation
layers this reduces the round trip time for transactions
● To achieve this on the Salesforce platform, we can utilize a managed product called
Platform Cache.

6. Previous Caching Options
Useful but very limited like Custom Setting, Sobjects and Custom Metadata
(Inflexible)
Recent Cache Options
These days Caching is present in every layer, Now Platform Cache is available for
Salesforce Developers

7. Salesforce Platform Cache
Developer Edition (0 MB by Default), but can get 10 MB as a trial.
Enterprise (10 MB by default)
Unlimited/ Performance Edition (30 MB by default)
Enterprise and Unlimited licenses can get up to 3GB upon request.
Purchase Option Always Available!!!

8. While querying data from database directly
Benefits
After using Platform Cache, we see good reduction in DB usage and Heap as well

9. Types of Lighting Platform Cache
Session cache
Stores data for individual user sessions.The maximum life of a session is 8 hours.
Session cache expires when its specified time-to-live (ttlsecs value) is reached or
when the session expires after 8 hours, whichever comes first.
Cache.SessionPartition and Cache.Session are 2 classes used to get and put
data. If you’re managing cache values in one partition, use the
Cache.SessionPartition methods instead acc. to below code snippet.

10. Org cache
Stores data that any user in an org reuses.
Unlike session cache, the org cache is accessible across sessions, requests, and org
users and profiles. Org cache expires when its specified time-to-live (ttlsecs value) is
reached.The maximum life of a Org Cache is 48 hours.Cache.Org and
Cache.OrgPartition are 2 classes used to get and put the data.
If you’re managing cache values in one partition, use the Cache.OrgPartition
methods instead.

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Demo
Using Lightning Web Component to fetch Object Names
Git Repo for Code Reference
https://github.com/vineet-goel-salesforce/platformCache

12. Cache Builder
Cache Misses actually happen if we don’t write the code in such a way.Too many
cache misses will reduce the effectiveness of the cache.
Salesforce Platform Cache provides CacheBuilder interface which helps with this
use case.
A simple method doLoad() used for safely retrieving and removing values from a
session or org cache. The interface checks for cache misses, which means you no
longer need to check for null cache values yourself.
One limitation with this is you cannot specify the TTL. This interface doesn’t provide this
ability.

13. Org Cache Use Cases
● Case list for service agents
● Leads list for sales agents
● Report summary data
● Shared user profiles, metadata, org info
Session Cache use Cases
● Accounts, contacts or user info private to the user
● Order history, order items, discount information
● Custom data with calculations in a transaction
● Financial data

14. Key Points to Consider
● Know the limits
https://developer.salesforce.com/docs/atlas.en-
us.apexcode.meta/apexcode/apex_platform_cache_limits.htm
● Best practices
https://developer.salesforce.com/docs/atlas.en-
us.apexcode.meta/apexcode/apex_platform_cache_best_practices.htm
Not all data can be cached. Data that is shared among multiple users and
getting constantly updated can lead to race conditions.

15. References
Trailhead
https://trailhead.salesforce.com/en/content/learn/modules/platform_cache
Thanks to Anil Jacob and Josh Kaplan
https://developer.salesforce.com/blogs/2020/06/caching-in-the-salesforce-platform.html
https://developer.salesforce.com/blogs/2019/08/scaling-data-access-with-app-layer-cache.html
https://developer.salesforce.com/blogs/engineering/2015/05/platform-cache.html
Developer Guide
https://developer.salesforce.com/docs/atlas.en-
us.apexcode.meta/apexcode/apex_cache_namespace_overview.htm
Trailmix
https://trailhead.salesforce.com/en/users/isvteprograms/trailmixes/isv-product-team-platform-cache

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