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

    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

All Implemented Interfaces:
  Aware, BeanNameAware, InitializingBean, ApplicationContextAware, ServletContextAware, View

Direct Known Subclasses:
  AbstractJasperReportsView, AbstractPdfStamperView, AbstractTemplateView, InternalResourceView, RedirectView, TilesView, XsltView

    public abstract class AbstractUrlBasedView

extends AbstractView
implements InitializingBean

Abstract base class for URL-based views. Provides a consistent way of holding the URL that a View wraps, in the form of a "url" bean property.

Since:
  13.12.2003
Author:
  Juergen Hoeller

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
`protected` | `AbstractUrlBasedView()` Constructor for use as a bean.
`protected` | `AbstractUrlBasedView(String url)` Create a new AbstractUrlBasedView with the given URL.

Method Summary
`void` | `afterPropertiesSet()` Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
`boolean` | `checkResource(Locale locale)` Check whether the underlying resource that the configured URL points to actually exists.
`String` | `getUrl()` Return the URL of the resource that this view wraps.
`protected boolean` | `isUrlRequired()` Return whether the 'url' property is required.
`void` | `setUrl(String url)` Set the URL of the resource that this view wraps.
`String` | `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, renderMergedOutputModel, setAttributes, setAttributesCSV, setAttributesMap, setBeanName, setContentType, setExposePathVariables, setRequestContextAttribute, writeToResponse`

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, initApplicationContext, requiredContextClass, setApplicationContext`

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

Constructor Detail

### AbstractUrlBasedView

    protected AbstractUrlBasedView()

  Constructor for use as a bean.

### AbstractUrlBasedView

    protected AbstractUrlBasedView(String url)

  Create a new AbstractUrlBasedView with the given URL.

  Parameters:
    `url` - the URL to forward to

Method Detail

### setUrl

    public void setUrl(String url)

  Set the URL of the resource that this view wraps. The URL must be appropriate for the concrete View implementation.

### getUrl

    public String getUrl()

  Return the URL of the resource that this view wraps.

### afterPropertiesSet

    public void afterPropertiesSet()
                            throws Exception

  Description copied from interface: `InitializingBean`
  Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

  This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

  Specified by:
    `afterPropertiesSet` in interface `InitializingBean`
  Throws:
    `Exception` - in the event of misconfiguration (such as failure to set an essential property) or if initialization fails.

### isUrlRequired

    protected boolean isUrlRequired()

  Return whether the 'url' property is required.

  The default implementation returns `true`

### checkResource

    public boolean checkResource(Locale locale)
                          throws Exception

  Check whether the underlying resource that the configured URL points to actually exists.

  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:
    `Exception` - if the resource exists but is invalid (e.g. could not be parsed)

### toString

    public String toString()

  Overrides:
    `toString` in class `AbstractView`

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