Java Doc for View.java in  » J2EE » spring-framework-2.0.6 » org » springframework » web » servlet » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.web.servlet 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.springframework.web.servlet.View

All known Subclasses:   org.springframework.web.servlet.view.AbstractView,
View
public interface View (Code)
MVC View for a web interaction. Implementations are responsible for rendering content, and exposing the model. A single view exposes multiple model attributes.

This class and the MVC approach associated with it is discussed in Chapter 12 of Expert One-On-One J2EE Design and Development by Rod Johnson (Wrox, 2002).

View implementations may differ widely. An obvious implementation would be JSP-based. Other implementations might be XSLT-based, or use an HTML generation library. This interface is designed to avoid restricting the range of possible implementations.

Views should be beans. They are likely to be instantiated as beans by a ViewResolver. As this interface is stateless, view implementations should be thread-safe.
author:
   Rod Johnson
See Also:   org.springframework.web.servlet.view.AbstractView
See Also:   org.springframework.web.servlet.view.InternalResourceView





Method Summary
 StringgetContentType()
     Return the content type of the view, if predetermined.
 voidrender(Map model, HttpServletRequest request, HttpServletResponse response)
     Render the view given the specified model.



Method Detail
getContentType
String getContentType()(Code)
Return the content type of the view, if predetermined.

Can be used to check the content type upfront, before the actual rendering process. the content type String (optionally including a character set),or null if not predetermined.




render
void render(Map model, HttpServletRequest request, HttpServletResponse response) throws Exception(Code)
Render the view given the specified model.

The first step will be preparing the request: In the JSP case, this would mean setting model objects as request attributes. The second step will be the actual rendering of the view, for example including the JSP via a RequestDispatcher.
Parameters:
  model - Map with name Strings as keys and corresponding modelobjects as values (Map can also be null in case of empty model)
Parameters:
  request - current HTTP request
Parameters:
  response - HTTP response we are building
throws:
  Exception - if rendering failed




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