Component descriptions that show the 
icon are Premium, meaning they do not come in the Enterprise or Community distribution and are licensed separately.
Component descriptions that show the 
icon are Aspire Enterprise bundled, meaning they do come in the Enterprise distribution.
Component descriptions that do not show either icon are Aspire Community bundled, meaning they come in the Community and Enterprise distributions.
If you're creating a new component, see Creating New Components, but check here first as somebody else may have done what you want to.
You can find the Javadocs for the latest Aspire code at https://wiki.searchtechnologies.com/javadoc/aspire-latest/ Other versions can be found via https://wiki.searchtechnologies.com/javadoc/
Core Components
Connector Components
Publisher Components
Security Components
JMS Components
Logic Components
Content Extraction Components
Cache, Text Analytics, and Scheduler Components
Debugging Stages and Query Components
Databases and Components as Independent Services
Other Components
Document Hierarchy, Federation, and OCR Components
Overview
Content Tools