The faces-config Tag
The faces-config Tag
In addition, each file must include the following, in this order:
The XML version number:
<?xml version=
"1.0"?>
A faces-config tag enclosing all the other declarations:
<faces-config xmlns=
"http://java.sun.com/xml/ns/javaee"
xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=
"http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd
"
version=
"1.2">
...
</faces-config>
You can have more than one application configuration resource file. The JavaServer Faces
implementation finds the file or files by looking for the following:
A resource named /META-INF/faces-config.xml in any of the JAR files in the web
application's /WEB-INF/lib/ directory and in parent class loaders. If a resource with this
name exists, it is loaded as a configuration resource. This method is practical for a packaged
library containing some components and renderers.
A context initialization parameter, javax.faces.application.CONFIG_FILES, that
specifies one or more (comma-delimited) paths to multiple configuration files for your web
application. This method will most likely be used for enterprise-scale applications that
delegate to separate groups the responsibility for maintaining the file for each portion of a
big application.
A resource named faces-config.xml in the /WEB-INF/ directory of your application. This
is the way most simple applications will make their configuration files available.
To access resources registered with the application, an application developer uses an instance of
the Application class, which is automatically created for each application. The Application
instance acts as a centralized factory for resources that are defined in the XML file.
When an application starts up, the JavaServer Faces implementation creates a single instance of
the Application class and configures it with the information you configure in the application
configuration resource file.
Application Configuration Resource File
The Java EE 5 Tutorial · September 2007
438
