Why specify the XML Schema Definition file?

When you create a configuration file for the Genero Application Server or for an application, you provide the path to an XML schema definition file (xsd).

• In the GAS configuration file (as.xcf by default), this entry exists:

  xsi:noNamespaceSchemaLocation="http://www.4js.com/ns/gas/2.50/cfas.xsd"

• For external application configuration files, this entry should exist:

  xsi:noNamespaceSchemaLocation="http://www.4js.com/ns/gas/2.50/cfextwa.xsd"

These references to an XML schema definition file are used by XML editors, in order to provide validation and syntax hints while editing the configuration files. The XML editor either looks on the Web or in its local schemas catalog for the specified XML schema definition file.

While the Genero Application Server validates the configuration files, it does not rely on these entries within the configuration files themselves. The validation is completed by the dispatcher using the schemas provided in $FGLASDIR/etc.