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
Salesforce Knowledge
Lightning Connect
Lightning Connect
Lightning Connect Adapters
Lightning Connect Custom Adapter
Writable External Objects in Lightning Connect
Get Started with the Apex Connector Framework
Key Concepts About the Apex Connector Framework
Considerations for the Apex Connector Framework
Apex Connector Framework Examples
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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Lightning Connect Adapters

Lightning Connect uses a protocol-specific adapter to connect to an external system and access its data. When you define an external data source in your organization, you specify the adapter in the Type field.
Available in: both Salesforce Classic and Lightning Experience
Available in: Developer Edition

Available for an extra cost in: Enterprise, Performance, and Unlimited Editions

These adapters are available for Lightning Connect.

Lightning Connect Adapter Description
OData 2.0

OData 4.0

 Uses Open Data Protocol to access data that’s stored outside Salesforce. The external data must be exposed via OData producers.
Salesforce Uses the Force.com REST API to access data that’s stored in other Salesforce orgs.
Custom adapter created via Apex You use the Apex Connector Framework to develop your own custom adapter when the other available adapters aren’t suitable for your needs.

A custom adapter can obtain data from anywhere. For example, some data can be retrieved from anywhere in the Internet via callouts, while other data can be manipulated or even generated programmatically.