## org.springframework.web.servlet.view
Class AbstractTemplateViewResolver

    java.lang.Object
      org.springframework.context.support.ApplicationObjectSupport
          org.springframework.web.context.support.WebApplicationObjectSupport
              org.springframework.web.servlet.view.AbstractCachingViewResolver
                  org.springframework.web.servlet.view.UrlBasedViewResolver
                      org.springframework.web.servlet.view.AbstractTemplateViewResolver

All Implemented Interfaces:
  Aware, ApplicationContextAware, Ordered, ServletContextAware, ViewResolver

Direct Known Subclasses:
  FreeMarkerViewResolver, VelocityViewResolver

    public class AbstractTemplateViewResolver

extends UrlBasedViewResolver

Abstract base class for template view resolvers, in particular for Velocity and FreeMarker views.

Provides a convenient way to specify `AbstractTemplateView`'s exposure flags for request attributes, session attributes, and Spring's macro helpers.

Since:
  1.1
Author:
  Juergen Hoeller
See Also:
  `AbstractTemplateView`, `VelocityViewResolver`, `FreeMarkerViewResolver`

Field Summary

Fields inherited from class org.springframework.web.servlet.view.UrlBasedViewResolver
`FORWARD_URL_PREFIX, REDIRECT_URL_PREFIX`

Fields inherited from class org.springframework.web.servlet.view.AbstractCachingViewResolver
`DEFAULT_CACHE_LIMIT`

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

Fields inherited from interface org.springframework.core.Ordered
`HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE`

Constructor Summary
`AbstractTemplateViewResolver()`

Method Summary
`protected AbstractUrlBasedView` `buildView(String viewName)` Creates a new View instance of the specified view class and configures it.
`protected Class` `requiredViewClass()` Return the required type of view for this resolver.
`void` `setAllowRequestOverride(boolean allowRequestOverride)` Set whether HttpServletRequest attributes are allowed to override (hide) controller generated model attributes of the same name.
`void` `setAllowSessionOverride(boolean allowSessionOverride)` Set whether HttpSession attributes are allowed to override (hide) controller generated model attributes of the same name.
`void` `setExposeRequestAttributes(boolean exposeRequestAttributes)` Set whether all request attributes should be added to the model prior to merging with the template.
`void` `setExposeSessionAttributes(boolean exposeSessionAttributes)` Set whether all HttpSession attributes should be added to the model prior to merging with the template.
`void` `setExposeSpringMacroHelpers(boolean exposeSpringMacroHelpers)` Set whether to expose a RequestContext for use by Spring's macro library, under the name "springMacroRequestContext".

Methods inherited from class org.springframework.web.servlet.view.UrlBasedViewResolver

`canHandle, createView, getAttributesMap, getCacheKey, getContentType, getOrder, getPrefix, getRequestContextAttribute, getSuffix, getViewClass, getViewNames, initApplicationContext, isRedirectContextRelative, isRedirectHttp10Compatible, loadView, setAttributes, setAttributesMap, setContentType, setExposePathVariables, setOrder, setPrefix, setRedirectContextRelative, setRedirectHttp10Compatible, setRequestContextAttribute, setSuffix, setViewClass, setViewNames`

Methods inherited from class org.springframework.web.servlet.view.AbstractCachingViewResolver
`clearCache, getCacheLimit, isCache, isCacheUnresolved, removeFromCache, resolveViewName, setCache, setCacheLimit, setCacheUnresolved`

Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport
`getServletContext, getTempDir, getWebApplicationContext, initApplicationContext, initServletContext, isContextRequired, setServletContext`

Methods inherited from class org.springframework.context.support.ApplicationObjectSupport
`getApplicationContext, getMessageSourceAccessor, requiredContextClass, setApplicationContext`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### AbstractTemplateViewResolver

    public AbstractTemplateViewResolver()

Method Detail

### requiredViewClass

    protected Class requiredViewClass()

  Description copied from class: `UrlBasedViewResolver`
  Return the required type of view for this resolver. This implementation returns AbstractUrlBasedView.

  Overrides:
    `requiredViewClass` in class `UrlBasedViewResolver`
  See Also:
    `AbstractUrlBasedView`

### setExposeRequestAttributes

    public void setExposeRequestAttributes(boolean exposeRequestAttributes)

  Set whether all request attributes should be added to the model prior to merging with the template. Default is "false".

  See Also:
    `AbstractTemplateView.setExposeRequestAttributes(boolean)`

### setAllowRequestOverride

    public void setAllowRequestOverride(boolean allowRequestOverride)

  Set whether HttpServletRequest attributes are allowed to override (hide) controller generated model attributes of the same name. Default is "false", which causes an exception to be thrown if request attributes of the same name as model attributes are found.

  See Also:
    `AbstractTemplateView.setAllowRequestOverride(boolean)`

### setExposeSessionAttributes

    public void setExposeSessionAttributes(boolean exposeSessionAttributes)

  Set whether all HttpSession attributes should be added to the model prior to merging with the template. Default is "false".

  See Also:
    `AbstractTemplateView.setExposeSessionAttributes(boolean)`

### setAllowSessionOverride

    public void setAllowSessionOverride(boolean allowSessionOverride)

  Set whether HttpSession attributes are allowed to override (hide) controller generated model attributes of the same name. Default is "false", which causes an exception to be thrown if session attributes of the same name as model attributes are found.

  See Also:
    `AbstractTemplateView.setAllowSessionOverride(boolean)`

### setExposeSpringMacroHelpers

    public void setExposeSpringMacroHelpers(boolean exposeSpringMacroHelpers)

  Set whether to expose a RequestContext for use by Spring's macro library, under the name "springMacroRequestContext". Default is "true".

  See Also:
    `AbstractTemplateView.setExposeSpringMacroHelpers(boolean)`

### buildView

    protected AbstractUrlBasedView buildView(String viewName)
                                      throws Exception

  Description copied from class: `UrlBasedViewResolver`
  Creates a new View instance of the specified view class and configures it. Does not perform any lookup for pre-defined View instances.

  Spring lifecycle methods as defined by the bean container do not have to be called here; those will be applied by the `loadView` method after this method returns.

  Subclasses will typically call `super.buildView(viewName)` first, before setting further properties themselves. `loadView` will then apply Spring lifecycle methods at the end of this process.

  Overrides:
    `buildView` in class `UrlBasedViewResolver`
  Parameters:
    `viewName` - the name of the view to build
  Returns:
    the View instance
  Throws:
    `Exception` - if the view couldn't be resolved
  See Also:
    `UrlBasedViewResolver.loadView(String, java.util.Locale)`