FacesContextFactory (Java EE 5 SDK)

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javax.faces.context Class FacesContextFactory

java.lang.Object
  javax.faces.context.FacesContextFactory

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public abstract class FacesContextFactory

extends Object

FacesContextFactory is a factory object that creates (if needed) and returns new FacesContext instances, initialized for the processing of the specified request and response objects. Implementations may take advantage of the calls to the release() method of the allocated FacesContext instances to pool and recycle them, rather than creating a new instance every time.

There must be one FacesContextFactory instance per web application that is utilizing JavaServer Faces. This instance can be acquired, in a portable manner, by calling:

   FacesContextFactory factory = (FacesContextFactory)
    FactoryFinder.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY);
 

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构造器摘要
FacesContextFactory()

 

方法摘要
abstract  FacesContext	getFacesContext(Object context, Object request, Object response, Lifecycle lifecycle)           Create (if needed) and return a FacesContext instance that is initialized for the processing of the specified request and response objects, utilizing the specified Lifecycle instance, for this web application.

 

类方法继承 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

构造器详细信息

FacesContextFactory

public FacesContextFactory()

方法详细信息

getFacesContext

public abstract FacesContext getFacesContext(Object context,
                                             Object request,
                                             Object response,
                                             Lifecycle lifecycle)
                                      throws FacesException

Create (if needed) and return a FacesContext instance that is initialized for the processing of the specified request and response objects, utilizing the specified Lifecycle instance, for this web application.

The implementation of this method must ensure that calls to the getCurrentInstance() method of FacesContext, from the same thread that called this method, will return the same FacesContext instance until the release() method is called on that instance.

参数:

context - In servlet environments, the ServletContext that is associated with this web application

request - In servlet environments, the ServletRequest that is to be processed

response - In servlet environments, the ServletResponse that is to be processed

lifecycle - The Lifecycle instance being used to process this request

抛出异常:

FacesException - if a FacesContext cannot be constructed for the specified parameters

NullPointerException - if any of the parameters are null

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概述  软件包   类  树  已过时  索引  帮助		Java EE 5 SDK 深圳电信培训中心.徐海蛟老师.
上一个类   下一个类	框架    无框架
摘要: 嵌套 | 字段 | 构造器 | 方法	详细信息: 字段 | 构造器 | 方法

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