ViewDeclarationLanguageFactory

java.lang.Object
- javax.faces.view.ViewDeclarationLanguageFactory

All Implemented Interfaces:

FacesWrapper<ViewDeclarationLanguageFactory>
```
public abstract class ViewDeclarationLanguageFactory
extends java.lang.Object
implements FacesWrapper<ViewDeclarationLanguageFactory>
```
ViewDeclarationLanguageFactory is a factory object that creates (if needed) and returns a new ViewDeclarationLanguage instance based on the VDL found in a specific view.
There must be one ViewDeclarationLanguageFactory instance per web application that is utilizing JavaServer Faces. This instance can be acquired, in a portable manner, by calling:
```
   ViewDeclarationLanguageFactory factory = (ViewDeclarationLanguageFactory)
    FactoryFinder.getFactory(FactoryFinder.VIEW_DECLARATION_LANGUAGE_FACTORY);
 
```
Since:

2.0

Constructor Summary

Constructors
Constructor Description

ViewDeclarationLanguageFactory()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract ViewDeclarationLanguage`	`getViewDeclarationLanguage(java.lang.String viewId)`	Return the `ViewDeclarationLanguage` instance suitable for handling the VDL contained in the page referenced by the argument `viewId`.
`ViewDeclarationLanguageFactory`	`getWrapped()`	If this factory has been decorated, the implementation doing the decorating may override this method to provide access to the implementation being wrapped.

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

- Constructor Detail
  - ViewDeclarationLanguageFactory
```
public ViewDeclarationLanguageFactory()
```
- Method Detail
  - getWrapped
```
public ViewDeclarationLanguageFactory getWrapped()
```
    If this factory has been decorated, the implementation doing the decorating may override this method to provide access to the implementation being wrapped. A default implementation is provided that returns null.
    
    Specified by:
    
    getWrapped in interface FacesWrapper<ViewDeclarationLanguageFactory>
  - getViewDeclarationLanguage
```
public abstract ViewDeclarationLanguage getViewDeclarationLanguage(java.lang.String viewId)
```
    Return the ViewDeclarationLanguage instance suitable for handling the VDL contained in the page referenced by the argument viewId. The default implementation must return a valid ViewDeclarationLanguage instance for views written in either JSP, Faces XML Views, or Facelets for JSF 2.
    
    Parameters:
    
    viewId - the viewId to be inspected for an appropriate ViewDeclarationLanguage implementation for the VDL used in the view.
    
    Throws:
    
    java.lang.NullPointerException - if viewId is null.
    
    Since:
    
    2.0