Databases Reference
In-Depth Information
The Metadata Services framework
The Oracle Metadata Services framework is used to provide customizaion features for
ADF users in an ADF web applicaion. Users have the ability to customize the way a web
applicaion is presented to them. The customer can add more custom features at runime
using
Metadata Services
(
MDS
).
For example, in the following screenshot, the base document for the page is displayed
with customizaion for User1 and without customizaion for User2, at the same ime:
Customization
User1 view
Base
User2 view
Customization layers
Customizaion is applied on layers at the applicaion stage. MDS stores all the customizaion
informaion in its repository and this customizaion informaion is separated by layers
within MDS.
For example, a single site can have many customizaion layers such as industry, healthcare,
inancials, operaions, and so on. Within these layers, you can have another set of layers, such
as admin, users, customers, support, and others, based on the user role and the view that has
to be customized for each of these roles. In order to support customizaion within JDeveloper,
we will have to start JDeveloper as a customizaion developer. This can be changed by using
the
Switch Roles
opion from the
Tools
menu. The
CustomizationLayerValues.xml
ile
will have the design-ime layer informaion retrieved by JDeveloper as shown in the following
code snippet:
<cust-layers xmlns=
"http://xmlns.oracle.com/mds/dt">
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