Lightning Components Developer Guide

What is the Lightning Component Framework?
Quick Start
Creating Components
Using Components
Communicating with Events
Creating Apps
Debugging
Fixing Performance Warnings
Reference
Reference Doc App
Supported aura:attribute Types
Basic Types
Function Type
Object Types
Standard and Custom Object Types
Collection Types
Custom Apex Class Types
Framework-Specific Types
aura:application
aura:component
aura:dependency
aura:event
aura:interface
aura:method
aura:set
Component Reference
Messaging Component Reference
Interface Reference
Event Reference
System Event Reference
Supported HTML Tags
PDF

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Custom Apex Class Types

An attribute can have a type corresponding to an Apex class. For example, this is an attribute for a Color Apex class:

1<aura:attribute name="color" type="docSampleNamespace.Color" />

When an instance of an Apex class is returned from a server-side action, the instance is serialized to JSON by the framework. Only the values of public instance properties and methods annotated with @AuraEnabled are serialized and returned.

Using Arrays

If an attribute can contain more than one element, use an array.

This aura:attribute tag shows the syntax for an array of Apex objects:

1<aura:attribute name="colorPalette" type="docSampleNamespace.Color[]" />