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Java Source Code / Java Documentation » Ajax » dwr » org.directwebremoting 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.directwebremoting.WebContext

WebContext
public interface WebContext extends ServerContext(Code)
Class to enable us to access servlet parameters.
author:
   Joe Walker [joe at getahead dot ltd dot uk]


Field Summary
final public static  StringATTRIBUTE_DWR
     An attribute used by WebContext.forwardToString(String) to inform anyone that wants to know that this is a request from DWR.


Method Summary
 StringforwardToString(String url)
     Forward a request to a given URL and catch the data written to it. It is possible to distinguish requests that arrive normally and requests that come from a DWR forwardToString() by the presence of a request attribute.
 StringgetCurrentPage()
     What is the URL of the current page.
 HttpServletRequestgetHttpServletRequest()
     Accessor for the http request information.
 HttpServletResponsegetHttpServletResponse()
     Accessor for the http response bean.
 ScriptSessiongetScriptSession()
     Get the script session that represents the currently viewed page in the same way that an HttpSession represents a cookie.
 HttpSessiongetSession()
     Returns the current session associated with this request, or if the request does not have a session, creates one.
 HttpSessiongetSession(boolean create)
     Returns the current HttpSession associated with this request or, if there is no current session and create is true, returns a new session.

Field Detail
ATTRIBUTE_DWR
final public static String ATTRIBUTE_DWR(Code)
An attribute used by WebContext.forwardToString(String) to inform anyone that wants to know that this is a request from DWR.





Method Detail
forwardToString
String forwardToString(String url) throws ServletException, IOException(Code)
Forward a request to a given URL and catch the data written to it. It is possible to distinguish requests that arrive normally and requests that come from a DWR forwardToString() by the presence of a request attribute. Before the request is forwarded, DWR will call:
 request.setAttribute(WebContext.ATTRIBUTE_DWR, Boolean.TRUE);
 

Parameters:
  url - The URL to forward to The text that results from forwarding to the given URL
throws:
  IOException - if the target resource throws this exception
throws:
  ServletException - if the target resource throws this exception
throws:
  IllegalStateException - if the response was already committed



getCurrentPage
String getCurrentPage()(Code)
What is the URL of the current page. This includes 'http://', up to (but not including) '?' or '#' The URL of the current page



getHttpServletRequest
HttpServletRequest getHttpServletRequest()(Code)
Accessor for the http request information. Returns the request.



getHttpServletResponse
HttpServletResponse getHttpServletResponse()(Code)
Accessor for the http response bean.

You can't use this request to directly reply to the response or to add headers or cookies. Returns the response.




getScriptSession
ScriptSession getScriptSession()(Code)
Get the script session that represents the currently viewed page in the same way that an HttpSession represents a cookie. A browser object for this user



getSession
HttpSession getSession()(Code)
Returns the current session associated with this request, or if the request does not have a session, creates one. Returns the http session.
See Also:   HttpServletRequest.getSession



getSession
HttpSession getSession(boolean create)(Code)
Returns the current HttpSession associated with this request or, if there is no current session and create is true, returns a new session. If create is false and the request has no valid HttpSession, this method returns null.
Parameters:
  create - false to return null if there's no current session the session associated with this request
See Also:   HttpServletRequest.getSession(boolean)



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