org.codehaus.groovy.grails.web.servlet.view
Class GroovyPageView

java.lang.Object
  org.springframework.context.support.ApplicationObjectSupport
      org.springframework.web.context.support.WebApplicationObjectSupport
          org.springframework.web.servlet.view.AbstractView
              org.springframework.web.servlet.view.AbstractUrlBasedView
                  org.codehaus.groovy.grails.web.servlet.view.GroovyPageView

All Implemented Interfaces:

BeanNameAware, InitializingBean, ApplicationContextAware, ServletContextAware, View

Direct Known Subclasses:

ScaffoldedGroovyPageView

public class GroovyPageView
extends AbstractUrlBasedView

A Spring View that renders Groovy Server Pages to the reponse. It requires an instance of GroovyPagesTemplateEngine to be set and will render to view returned by the getUrl() method of AbstractUrlBasedView This view also requires an instance of GrailsWebRequest to be bound to the currently executing Thread using Spring's RequestContextHolder. This can be done with by adding the GrailsWebRequestFilter.

Since:

0.4

Created: Feb 27, 2007 Time: 8:25:10 AM

Author:

Graeme Rocher

See Also:

AbstractUrlBasedView.getUrl(), GroovyPagesTemplateEngine, GrailsWebRequestFilter, RequestContextHolder

Field Summary

static String

EXCEPTION_MODEL_KEY

Fields inherited from class org.springframework.web.servlet.view.AbstractView

DEFAULT_CONTENT_TYPE

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport

logger

Constructor Summary

GroovyPageView()

Method Summary

protected Writer	createResponseWriter(HttpServletResponse response) Creates the Response Writer for the specified HttpServletResponse instance
protected void	handleException(Exception exception, Writer out, GroovyPagesTemplateEngine engine, HttpServletRequest request) Performs exception handling by attempting to render the Errors view
protected void	renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response) Delegates to renderMergedOutputModel(..)
protected void	renderWithTemplateEngine(GroovyPagesTemplateEngine templateEngine, Map model, HttpServletResponse response, HttpServletRequest request) Renders a page with the specified TemplateEngine, mode and response

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, createRequestContext, exposeModelAsRequestAttributes, getAttributesMap, getBeanName, getContentType, getRequestContextAttribute, getStaticAttributes, render, setAttributes, setAttributesCSV, setAttributesMap, setBeanName, setContentType, setRequestContextAttribute

Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport

getServletContext, getTempDir, getWebApplicationContext, 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

Field Detail

EXCEPTION_MODEL_KEY

public static final String EXCEPTION_MODEL_KEY

See Also:

Constant Field Values

Constructor Detail

GroovyPageView

public GroovyPageView()

Method Detail

renderMergedOutputModel

protected final void renderMergedOutputModel(Map model,
                                             HttpServletRequest request,
                                             HttpServletResponse response)
                                      throws Exception

Delegates to renderMergedOutputModel(..)

Specified by:

renderMergedOutputModel in class AbstractView

Parameters:

model - The view model

request - The HttpServletRequest

response - The HttpServletResponse

Throws:

Exception - When an error occurs rendering the view

See Also:

renderMergedOutputModel(java.util.Map, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

renderWithTemplateEngine

protected void renderWithTemplateEngine(GroovyPagesTemplateEngine templateEngine,
                                        Map model,
                                        HttpServletResponse response,
                                        HttpServletRequest request)
                                 throws IOException

Renders a page with the specified TemplateEngine, mode and response

Parameters:

templateEngine - The TemplateEngine to use

model - The model to use

response - The HttpServletResponse instance

request - The HttpServletRequest

Throws:

IOException - Thrown when an error occurs writing the response

handleException

protected void handleException(Exception exception,
                               Writer out,
                               GroovyPagesTemplateEngine engine,
                               HttpServletRequest request)

Performs exception handling by attempting to render the Errors view

Parameters:

exception - The exception that occured

out - The Writer

engine - The GSP engine

createResponseWriter

protected Writer createResponseWriter(HttpServletResponse response)

Creates the Response Writer for the specified HttpServletResponse instance

Parameters:

response - The HttpServletResponse instance

Returns:

A response Writer