java.lang.Object
- javax.faces.application.NavigationHandler
- - org.springframework.web.jsf.DelegatingNavigationHandlerProxy

```
public class DelegatingNavigationHandlerProxy
extends NavigationHandler
```
JSF NavigationHandler implementation that delegates to a NavigationHandler bean obtained from the Spring root WebApplicationContext.
Configure this handler proxy in your faces-config.xml file as follows:
```
 <application>
   ...
   <navigation-handler>
           org.springframework.web.jsf.DelegatingNavigationHandlerProxy
   </navigation-handler>
   ...
 </application>
```
By default, the Spring ApplicationContext will be searched for the NavigationHandler under the bean name "jsfNavigationHandler". In the simplest case, this is a plain Spring bean definition like the following. However, all of Spring's bean configuration power can be applied to such a bean, in particular all flavors of dependency injection.
```
 <bean name="jsfNavigationHandler" class="mypackage.MyNavigationHandler">
   <property name="myProperty" ref="myOtherBean"/>
 </bean>
```
The target NavigationHandler bean will typically extend the standard JSF NavigationHandler class. However, note that decorating the original NavigationHandler (the JSF provider's default handler) is not supported in such a scenario, since we can't inject the original handler in standard JSF style (that is, as constructor argument).
For decorating the original NavigationHandler, make sure that your target bean extends Spring's DecoratingNavigationHandler class. This allows to pass in the original handler as method argument, which this proxy automatically detects. Note that a DecoratingNavigationHandler subclass will still work as standard JSF NavigationHandler as well!
This proxy may be subclassed to change the bean name used to search for the navigation handler, change the strategy used to obtain the target handler, or change the strategy used to access the ApplicationContext (normally obtained via FacesContextUtils.getWebApplicationContext(FacesContext)).
从以下版本开始:
1.2.7
作者:
Juergen Hoeller, Colin Sampaleanu
另请参阅:
DecoratingNavigationHandler

字段概要
字段
修饰符和类型字段说明
static String DEFAULT_TARGET_BEAN_NAME
Default name of the target bean in the Spring application context: "jsfNavigationHandler"

构造器概要

构造器
构造器	说明
`DelegatingNavigationHandlerProxy()`	Create a new DelegatingNavigationHandlerProxy.
`DelegatingNavigationHandlerProxy(NavigationHandler originalNavigationHandler)`	Create a new DelegatingNavigationHandlerProxy.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected BeanFactory`	`getBeanFactory(FacesContext facesContext)`	Retrieve the Spring BeanFactory to delegate bean name resolution to.
`protected NavigationHandler`	`getDelegate(FacesContext facesContext)`	Return the target NavigationHandler to delegate to.
`protected String`	`getTargetBeanName(FacesContext facesContext)`	Return the name of the target NavigationHandler bean in the BeanFactory.
`protected WebApplicationContext`	`getWebApplicationContext(FacesContext facesContext)`	Retrieve the web application context to delegate bean name resolution to.
`void`	`handleNavigation(FacesContext facesContext, String fromAction, String outcome)`	Handle the navigation request implied by the specified parameters, through delegating to the target bean in the Spring application context.

从类继承的方法 javax.faces.application.NavigationHandler
handleNavigation

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - DEFAULT_TARGET_BEAN_NAME
```
public static final String DEFAULT_TARGET_BEAN_NAME
```
    Default name of the target bean in the Spring application context: "jsfNavigationHandler"
    另请参阅:
    常量字段值
- 构造器详细资料
  - DelegatingNavigationHandlerProxy
```
public DelegatingNavigationHandlerProxy()
```
    Create a new DelegatingNavigationHandlerProxy.
  - DelegatingNavigationHandlerProxy
```
public DelegatingNavigationHandlerProxy(NavigationHandler originalNavigationHandler)
```
    Create a new DelegatingNavigationHandlerProxy.
    参数:
    originalNavigationHandler - the original NavigationHandler
- 方法详细资料
  - handleNavigation
```
public void handleNavigation(FacesContext facesContext,
                             String fromAction,
                             String outcome)
```
    Handle the navigation request implied by the specified parameters, through delegating to the target bean in the Spring application context.
    The target bean needs to extend the JSF NavigationHandler class. If it extends Spring's DecoratingNavigationHandler, the overloaded handleNavigation method with the original NavigationHandler as argument will be used. Else, the standard handleNavigation method will be called.
    指定者:
    handleNavigation 在类中 NavigationHandler
  - getDelegate
```
protected NavigationHandler getDelegate(FacesContext facesContext)
```
    Return the target NavigationHandler to delegate to.
    By default, a bean with the name "jsfNavigationHandler" is obtained from the Spring root WebApplicationContext, for every invocation.
    参数:
    facesContext - the current JSF context
    返回:
    the target NavigationHandler to delegate to
    另请参阅:
    getTargetBeanName(javax.faces.context.FacesContext), getBeanFactory(javax.faces.context.FacesContext)
  - getTargetBeanName
```
protected String getTargetBeanName(FacesContext facesContext)
```
    Return the name of the target NavigationHandler bean in the BeanFactory. Default is "jsfNavigationHandler".
    参数:
    facesContext - the current JSF context
    返回:
    the name of the target bean
  - getBeanFactory
```
protected BeanFactory getBeanFactory(FacesContext facesContext)
```
    Retrieve the Spring BeanFactory to delegate bean name resolution to.
    Default implementation delegates to getWebApplicationContext. Can be overridden to provide an arbitrary BeanFactory reference to resolve against; usually, this will be a full Spring ApplicationContext.
    参数:
    facesContext - the current JSF context
    返回:
    the Spring BeanFactory (never null)
    另请参阅:
    getWebApplicationContext(javax.faces.context.FacesContext)
  - getWebApplicationContext
```
protected WebApplicationContext getWebApplicationContext(FacesContext facesContext)
```
    Retrieve the web application context to delegate bean name resolution to.
    Default implementation delegates to FacesContextUtils.
    参数:
    facesContext - the current JSF context
    返回:
    the Spring web application context (never null)
    另请参阅:
    FacesContextUtils.getRequiredWebApplicationContext(javax.faces.context.FacesContext)

类 DelegatingNavigationHandlerProxy

字段概要

构造器概要

方法概要

从类继承的方法 javax.faces.application.NavigationHandler

从类继承的方法 java.lang.Object

字段详细资料

DEFAULT_TARGET_BEAN_NAME

构造器详细资料

DelegatingNavigationHandlerProxy

DelegatingNavigationHandlerProxy

方法详细资料

handleNavigation

getDelegate

getTargetBeanName

getBeanFactory

getWebApplicationContext