Spring Framework

org.springframework.web.servlet.view.tiles2
Class TilesView

java.lang.Object
  extended by org.springframework.context.support.ApplicationObjectSupport
      extended by org.springframework.web.context.support.WebApplicationObjectSupport
          extended by org.springframework.web.servlet.view.AbstractView
              extended by org.springframework.web.servlet.view.AbstractUrlBasedView
                  extended by org.springframework.web.servlet.view.tiles2.TilesView
All Implemented Interfaces:
Aware, BeanNameAware, InitializingBean, ApplicationContextAware, ServletContextAware, View

public class TilesView
extends AbstractUrlBasedView

View implementation that retrieves a Tiles definition. The "url" property is interpreted as name of a Tiles definition.

This class builds on Tiles2, which requires JSP 2.0. JSTL support is integrated out of the box due to JSTL's inclusion in JSP 2.0. Note: Spring 3.0 requires Tiles 2.1.2 or above.

Depends on a TilesContainer which must be available in the ServletContext. This container is typically set up via a TilesConfigurer bean definition in the application context.

Since:
2.5
Author:
Juergen Hoeller
See Also:
AbstractUrlBasedView.setUrl(java.lang.String), TilesConfigurer

Field Summary
 
Fields inherited from class org.springframework.web.servlet.view.AbstractView
DEFAULT_CONTENT_TYPE
 
Fields inherited from class org.springframework.context.support.ApplicationObjectSupport
logger
 
Fields inherited from interface org.springframework.web.servlet.View
PATH_VARIABLES, RESPONSE_STATUS_ATTRIBUTE
 
Constructor Summary
TilesView()
           
 
Method Summary
 boolean checkResource(java.util.Locale locale)
          Check whether the underlying resource that the configured URL points to actually exists.
protected  void initServletContext(javax.servlet.ServletContext sc)
          Checks whether we need to explicitly expose the Servlet 2.4 request attributes by default.
protected  void renderMergedOutputModel(java.util.Map<java.lang.String,java.lang.Object> model, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
          Subclasses must implement this method to actually render the view.
 
Methods inherited from class org.springframework.web.servlet.view.AbstractUrlBasedView
afterPropertiesSet, getUrl, isUrlRequired, setUrl, toString
 
Methods inherited from class org.springframework.web.servlet.view.AbstractView
addStaticAttribute, createMergedOutputModel, createRequestContext, createTemporaryOutputStream, exposeModelAsRequestAttributes, generatesDownloadContent, getAttributesMap, getBeanName, getContentType, getRequestContextAttribute, getStaticAttributes, isExposePathVariables, prepareResponse, render, setAttributes, setAttributesCSV, setAttributesMap, setBeanName, setContentType, setExposePathVariables, setRequestContextAttribute, writeToResponse
 
Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport
getServletContext, getTempDir, getWebApplicationContext, initApplicationContext, isContextRequired, setServletContext
 
Methods inherited from class org.springframework.context.support.ApplicationObjectSupport
getApplicationContext, getMessageSourceAccessor, initApplicationContext, requiredContextClass, setApplicationContext
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

TilesView

public TilesView()
Method Detail

initServletContext

protected void initServletContext(javax.servlet.ServletContext sc)
Checks whether we need to explicitly expose the Servlet 2.4 request attributes by default.

This will be done by default on Servlet containers up until 2.4, and skipped for Servlet 2.5 and above. Note that Servlet containers at 2.4 level and above should expose those attributes automatically! This feature exists for Servlet 2.3 containers and misbehaving 2.4 containers only.

Overrides:
initServletContext in class WebApplicationObjectSupport
Parameters:
sc - the ServletContext that this application object runs in (never null)

checkResource

public boolean checkResource(java.util.Locale locale)
                      throws java.lang.Exception
Description copied from class: AbstractUrlBasedView
Check whether the underlying resource that the configured URL points to actually exists.

Overrides:
checkResource in class AbstractUrlBasedView
Parameters:
locale - the desired Locale that we're looking for
Returns:
true if the resource exists (or is assumed to exist); false if we know that it does not exist
Throws:
java.lang.Exception - if the resource exists but is invalid (e.g. could not be parsed)

renderMergedOutputModel

protected void renderMergedOutputModel(java.util.Map<java.lang.String,java.lang.Object> model,
                                       javax.servlet.http.HttpServletRequest request,
                                       javax.servlet.http.HttpServletResponse response)
                                throws java.lang.Exception
Description copied from class: AbstractView
Subclasses must implement this method to actually render the view.

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.

Specified by:
renderMergedOutputModel in class AbstractView
Parameters:
model - combined output Map (never null), with dynamic values taking precedence over static attributes
request - current HTTP request
response - current HTTP response
Throws:
java.lang.Exception - if rendering failed

Spring Framework