PortletApplicationContextUtils (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.web.portlet.context
Class PortletApplicationContextUtils

java.lang.Object
  org.springframework.web.portlet.context.PortletApplicationContextUtils

public abstract class PortletApplicationContextUtils
extends Object
extends Object

Convenience methods to retrieve the root WebApplicationContext for a given PortletContext. This is e.g. useful for accessing a Spring context from within custom Portlet implementations.

Since:: 2.0
Author:: Juergen Hoeller, John A. Lewis
See Also:: ContextLoader, WebApplicationContextUtils, FrameworkPortlet, DispatcherPortlet

Constructor Summary

PortletApplicationContextUtils()


Method Summary

static ApplicationContext getRequiredWebApplicationContext(PortletContext pc)
          Find the root WebApplicationContext for this portlet application, which is typically loaded via ContextLoaderListener or ContextLoaderServlet.

static ApplicationContext getWebApplicationContext(PortletContext pc)
          Find the root WebApplicationContext for this portlet application, which is typically loaded via ContextLoaderListener or ContextLoaderServlet.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Summary
`PortletApplicationContextUtils()`

Method Summary
`static ApplicationContext`	`getRequiredWebApplicationContext(PortletContext pc)` Find the root WebApplicationContext for this portlet application, which is typically loaded via ContextLoaderListener or ContextLoaderServlet.
`static ApplicationContext`	`getWebApplicationContext(PortletContext pc)` Find the root WebApplicationContext for this portlet application, which is typically loaded via ContextLoaderListener or ContextLoaderServlet.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

PortletApplicationContextUtils

public PortletApplicationContextUtils()

Method Detail

getWebApplicationContext

public static ApplicationContext getWebApplicationContext(PortletContext pc)

Find the root WebApplicationContext for this portlet application, which is typically loaded via ContextLoaderListener or ContextLoaderServlet.

Will rethrow an exception that happened on root context startup, to differentiate between a failed context startup and no context at all.

Parameters:: pc - PortletContext to find the web application context for
Returns:: the root WebApplicationContext for this web app, or null if none (typed to ApplicationContext to avoid a Servlet API dependency; can usually be casted to WebApplicationContext, but there shouldn't be a need to)
See Also:: WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE

getRequiredWebApplicationContext

public static ApplicationContext getRequiredWebApplicationContext(PortletContext pc)
                                                           throws IllegalStateException