| java.lang.Object
 org.springframework.web.context.ContextLoader
| ContextLoader | | public class ContextLoader (Code) | | Performs the actual initialization work for the root application context.
Called by
ContextLoaderListener and
ContextLoaderServlet .
Looks for a "contextClass" parameter at the web.xml context-param level
to specify the context class type, falling back to the default of
XmlWebApplicationContext if not found. With the default ContextLoader
implementation, any context class specified needs to implement
ConfigurableWebApplicationContext.
Passes a "contextConfigLocation" context-param to the context instance,
parsing it into potentially multiple file paths which can be separated by
any number of commas and spaces, like "applicationContext1.xml,
applicationContext2.xml". If not explicitly specified, the context
implementation is supposed to use a default location (with
XmlWebApplicationContext: "/WEB-INF/applicationContext.xml").
Note: In case of multiple config locations, later bean definitions will
override ones defined in earlier loaded files, at least when using one of
Spring's default ApplicationContext implementations. This can be leveraged
to deliberately override certain bean definitions via an extra XML file.
Above and beyond loading the root application context, this class can
optionally load or obtain and hook up a shared parent context to the root
application context. See the
ContextLoader.loadParentContext(ServletContext) method for more information.
author:
Juergen Hoeller
author:
Colin Sampaleanu
since:
17.02.2003
See Also: ContextLoaderListener
See Also: ContextLoaderServlet
See Also: ConfigurableWebApplicationContext
See Also: org.springframework.web.context.support.XmlWebApplicationContext |
| CONTEXT_CLASS_PARAM | | final public static String CONTEXT_CLASS_PARAM(Code) | | Config param for the root WebApplicationContext implementation class to
use: "contextClass"
|
| closeWebApplicationContext | | public void closeWebApplicationContext(ServletContext servletContext)(Code) | | Close Spring's web application context for the given servlet context. If
the default
ContextLoader.loadParentContext(ServletContext) implementation,
which uses ContextSingletonBeanFactoryLocator, has loaded any shared
parent context, release one reference to that shared parent context.
If overriding
ContextLoader.loadParentContext(ServletContext) , you may have
to override this method as well.
Parameters:
servletContext - the ServletContext that the WebApplicationContext runs in |
| createWebApplicationContext | | protected WebApplicationContext createWebApplicationContext(ServletContext servletContext, ApplicationContext parent) throws BeansException(Code) | | Instantiate the root WebApplicationContext for this loader, either the
default context class or a custom context class if specified.
This implementation expects custom contexts to implement
ConfigurableWebApplicationContext. Can be overridden in subclasses.
Parameters:
servletContext - current servlet context
Parameters:
parent - the parent ApplicationContext to use, or null if none the root WebApplicationContext
throws:
BeansException - if the context couldn't be initialized
See Also: ConfigurableWebApplicationContext |
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