April 2004
Intermediate to advanced
606 pages
20h 4m
English
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Packaging Custom Classes
JSF merges the definitions found in multiple faces-config.xml files. When a JSF application starts, the implementation looks for faces-config.xml files in this order:
All JAR file resources in the web application’s
ServletContextresource paths (in the reverse order of which they are returned by theServletContextgetResourcePaths( )method) are scanned for files named META-INF/faces-config.xml.A comma-separated list of context-relative paths defined by the
javax.faces.CONFIG_FILEScontext parameter in the web.xml file.The WEB-INF/faces-config.xml file.
This algorithm allows developers of custom classes to bundle them in JAR files with their declarations, making installation as easy as dropping the JAR file into the WEB-INF/lib directory. Because the WEB-INF/faces-config.xml file is considered last, you can override all configuration setting for a specific application in this file. Factory classes can be declared in additional files. See Appendix D for details.
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