Where to look for exact effects of Spring XML namespaces configuration?

Question

As we know, Spring Framework has lot of configuration elements in XML namespaces such as:

• <mvc:annotation-config/>
• <tx:annotation-driven/>

Some of them do a really huge amout of work, for example: <http> element in Spring Security security namespace.

Where to look to find exact code (more than documentation says ) for all effects of introducing particular XML element?

For example - where should I look if I want to see exact Spring actions caused by ussing <security:csrf> element in <security:http> element? (which filters/interceptors/converters are added, what scope attributes becomes available etc.)

Answer 1

Almost every namespace (xsd) has a corresponding NamespaceHandler class somewhere in Spring. The same goes for the elements each element has a corresponding BeanDefinitionParser .

See the javadoc for the available implementation in Spring itself. The Spring Security ones can be found here .

Most Spring projects nowaways include a namespace in general somewhere in the org.springframework.[project].config package.

Answer 2

In short you have to :

1. Author a XML Schema file .
2. Use NameSpaceHandler
3. Use BeanDefinitionParser
4. Registering the handler and the schema in META-INF

Refer this document for in-dept details

Have a look at this jar for Spring-security namespace details spring-security-config-xxXRELEASE-sources.jar