Apex Developer Guide

Getting Started
Writing Apex
Ways to Invoke Apex
Invoking Apex
Apex Transactions and Governor Limits
Using Salesforce Features with Apex
Actions
Approval Processing
Chatter Answers and Ideas
Chatter in Apex
Moderate Chatter Private Messages with Triggers
Communities
Email
Platform Cache
Platform Cache Features
Platform Cache Considerations
Platform Cache Limits
Platform Cache Partitions
Platform Cache Internals
Store and Retrieve Values from the Session Cache
Use a Visualforce Global Variable for the Session Cache
Store and Retrieve Values from the Org Cache
Platform Cache Best Practices
Salesforce Knowledge
Lightning Connect
Salesforce Reports and Dashboards API via Apex
Force.com Sites
Support Classes
Territory Management 2.0
Visual Workflow
Integration and Apex Utilities
Finishing Touches
Reference
Appendices
Glossary
PDF

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Platform Cache

The Force.com Platform Cache layer provides faster performance and better reliability when caching Salesforce session and org data. Specify what to cache and for how long without using custom objects and settings or overloading a Visualforce view state. Platform Cache improves performance by distributing cache space so that some applications or operations don’t steal capacity from others.

Because Apex runs in a multi-tenant environment with cached data living alongside internally cached data, caching involves minimal disruption to core Salesforce processes.