Oracle ADF Essentials includes the following technologies:
* Oracle ADF Faces Rich Client Components – a set of over
150 JSF components that simplify the creation of rich Web
user interfaces. Also included are the ADF Data
Visualization Tools.
* Oracle ADF Controller – an extension of the JSF controller
with a focus on building complete reusable process flows
and the ability to create dynamic regions with changing
content in Web pages.
* Oracle ADF Binding – a layer that provides a simplified way
to connect user interfaces to business services through metadata abstraction layer.
* Oracle ADF Business Components – a layer that simplifies
developing business services against relational databases by
providing declaratively-configured, reusable components
that implement common design patterns.

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What is included in Oracle ADF Essentials?
Oracle ADF Essentials includes the following Oracle ADF
components: Oracle ADF Faces Rich Client Components,
Oracle ADF Controller, Oracle ADF Model and Oracle ADF
Business Components.
The following functionality is not included in Oracle ADF
Essentials, and requires the full Oracle ADF version – Oracle
ADF Mobile, Oracle ADF Desktop Integration, Oracle ADF
Security, The Oracle ADF Web service data control, Oracle
ADF remote taskflows, Oracle ADF Business Component’s
Service Interfaces, Oracle ADF Data Controls for BI, Essbase
and BAM, Integration with Oracle Fusion Middleware features
such as MDS, OPSS, OWSM, Enterprise Manager and
MBeans, High Availability and Clustering.
Which Servers can I deploy Oracle ADF Essentials on?
Deploying Oracle ADF Essentials applications is supported on
Oracle WebLogic and GlassFish.
However, from a licensing perspective there are no limitations
on deploying on other Java EE server.