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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.web.struts

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Java Document (Java Doc)

org.springframework.web.struts .LookupDispatchActionSupport

LookupDispatchActionSupport

abstract public class LookupDispatchActionSupport extends LookupDispatchAction (Code)

Convenience class for Spring-aware Struts 1.1+ LookupDispatchActions.

Provides a reference to the current Spring application context, e.g. for bean lookup or resource loading. Auto-detects a ContextLoaderPlugIn context, falling back to the root WebApplicationContext. For typical usage, i.e. accessing middle tier beans, use a root WebApplicationContext.

For classic Struts Actions, DispatchActions or MappingDispatchActions, use the analogous ActionSupport ActionSupport or DispatchActionSupport DispatchActionSupport / MappingDispatchActionSupport MappingDispatchActionSupport class.

As an alternative approach, you can wire your Struts Actions themselves as Spring beans, passing references to them via IoC rather than looking up references in a programmatic fashion. Check out DelegatingActionProxy DelegatingActionProxy and DelegatingRequestProcessor DelegatingRequestProcessor .
author:
   Juergen Hoeller
since:
   1.1
See Also:   ContextLoaderPlugIn.SERVLET_CONTEXT_PREFIX
See Also:   WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE
See Also:   org.springframework.web.context.ContextLoaderListener
See Also:   org.springframework.web.context.ContextLoaderServlet
See Also:   ActionSupport
See Also:   DispatchActionSupport
See Also:   MappingDispatchActionSupport
See Also:   DelegatingActionProxy
See Also:   DelegatingRequestProcessor

Method Summary
final protected MessageSourceAccessor	getMessageSourceAccessor() Return a MessageSourceAccessor for the application context used by this object, for easy message access.
final protected ServletContext	getServletContext() Return the current ServletContext.
final protected File	getTempDir() Return the temporary directory for the current web application, as provided by the servlet container.
final protected WebApplicationContext	getWebApplicationContext() Return the current Spring WebApplicationContext.
protected WebApplicationContext	initWebApplicationContext(ActionServlet actionServlet) Fetch ContextLoaderPlugIn's WebApplicationContext from the ServletContext, falling back to the root WebApplicationContext (the usual case).
protected void	onDestroy() Callback for custom destruction when the ActionServlet shuts down.
protected void	onInit() Callback for custom initialization after the context has been set up.
public void	setServlet(ActionServlet actionServlet) Initialize the WebApplicationContext for this Action.

Method Detail

getMessageSourceAccessor
final protected MessageSourceAccessor getMessageSourceAccessor()(Code)
	Return a MessageSourceAccessor for the application context used by this object, for easy message access.

getServletContext
final protected ServletContext getServletContext()(Code)
	Return the current ServletContext.

getTempDir
final protected File getTempDir()(Code)
	Return the temporary directory for the current web application, as provided by the servlet container. the File representing the temporary directory

getWebApplicationContext
final protected WebApplicationContext getWebApplicationContext()(Code)
	Return the current Spring WebApplicationContext.

initWebApplicationContext
protected WebApplicationContext initWebApplicationContext(ActionServlet actionServlet) throws IllegalStateException(Code)
	Fetch ContextLoaderPlugIn's WebApplicationContext from the ServletContext, falling back to the root WebApplicationContext (the usual case). Parameters: actionServlet - the associated ActionServlet the WebApplicationContext throws: IllegalStateException - if no WebApplicationContext could be found See Also: DelegatingActionUtils.findRequiredWebApplicationContext

onDestroy
protected void onDestroy()(Code)
	Callback for custom destruction when the ActionServlet shuts down. See Also: LookupDispatchActionSupport.setServlet

onInit
protected void onInit()(Code)
	Callback for custom initialization after the context has been set up. See Also: LookupDispatchActionSupport.setServlet

setServlet
public void setServlet(ActionServlet actionServlet)(Code)
	Initialize the WebApplicationContext for this Action. Invokes onInit after successful initialization of the context. See Also: LookupDispatchActionSupport.initWebApplicationContext See Also: LookupDispatchActionSupport.onInit

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