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http://wiki.apache.org/shale/ShaleAndSpring

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Since version 1.1.5 of Spring, that framework has included a convenient 
integration with JSF that may be leveraged in a Shale based application. The 
integration includes a custom JSF {{{VariableResolver}}} implementation that is 
invoked first whenever a value binding or method binding expression is 
evaluated.  In other words, the JSF managed beans facility behaves like this:

* If there is a registered managed bean for the specified name, use the 
standard JSF facilities to create it (as usual).

* If there is a configuration for this bean in the Spring 
WebApplicationContext, use Spring's bean creation facilities to create it.

* If neither of the above facilities recognizes the name, return {{{null}}}.

This technique allows you to transparently use JSF value binding expressions 
(either in components, or through programmatic manipulation) that access beans 
managed by Spring instead of by the JSF managed beans facility.

In order to use this facility, simply include the following JAR files in your 
{{{/WEB-INF/lib}}} directory:

* From Shale, {{{shale-spring.jar}}} (in addition to {{{shale.jar}}}).

* From Spring, {{{spring-core.jar}}}, {{{spring-context.jar}}}, and 
{{{spring-web.jar}}}.

Additional information may be found on the 
[http://shale.apache.org/features-spring-integration.html Shale homepage].

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