org.apache.myfaces.spi
Class AnnotationProvider

java.lang.Object
  org.apache.myfaces.spi.AnnotationProvider

All Implemented Interfaces:

javax.faces.FacesWrapper<AnnotationProvider>

Direct Known Subclasses:

AnnotationProviderWrapper, DefaultAnnotationProvider

public abstract class AnnotationProvider
extends java.lang.Object
implements javax.faces.FacesWrapper<AnnotationProvider>

This interface provide a way to override myfaces annotation scanning algorithm that needs to be found at startup:

• ManagedBean
• FacesComponent
• FacesBehavior
• FacesConverter
• NamedEvent
• FacesRenderer
• FacesBehaviorRenderer
• FacesValidator

This is provided to allow application containers solve the following points

• It is common application containers to have its own protocols to handle files. It is not the same to scan annotation inside a jar than look on a directory.
• If the application container has some optimization related to annotation scanning or it already did that task, it is better to reuse that information instead do the same thing twice.

To override this class, create a file on a jar file with the following entry name: /META-INF/services/org.apache.myfaces.spi.AnnotationProvider and put the desired class name of the class that will override or extend the default AnnotationProvider.

To wrap the default AnnotationProvider, use a constructor like CustomAnnotationProvider(AnnotationProvider ap)

Since:

2.0.2

Author:

Leonardo Uribe

Constructor Summary

AnnotationProvider()

Method Summary

abstract java.util.Map<java.lang.Class<? extends java.lang.annotation.Annotation>,java.util.Set<java.lang.Class<?>>>	getAnnotatedClasses(javax.faces.context.ExternalContext ctx) Retrieve a map containing the classes that contains annotations used by jsf implementation at startup.
abstract java.util.Set<java.net.URL>	getBaseUrls() The returned Set<URL> urls are calculated in this way ( see JSF 2.0 spec section 11.4.2 for definitions )
AnnotationProvider	getWrapped()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AnnotationProvider

public AnnotationProvider()

Method Detail

getAnnotatedClasses

public abstract java.util.Map<java.lang.Class<? extends java.lang.annotation.Annotation>,java.util.Set<java.lang.Class<?>>> getAnnotatedClasses(javax.faces.context.ExternalContext ctx)

Retrieve a map containing the classes that contains annotations used by jsf implementation at startup.

The default implementation must comply with JSF 2.0 spec section 11.5.1 Requirements for scanning of classes for annotations.

This method could call getBaseUrls() to obtain a list of URL that could be used to indicate jar files of annotations in the classpath.

If the element in the WEB-INF/faces-config.xml file contains metadata-complete attribute whose value is "true", this method should not be called.

Parameters:

ctx - The current ExternalContext

Returns:

A map with all classes that could contain annotations.

getBaseUrls

public abstract java.util.Set<java.net.URL> getBaseUrls()
                                                 throws java.io.IOException

The returned Set<URL> urls are calculated in this way ( see JSF 2.0 spec section 11.4.2 for definitions )

1. All resources that match either "META-INF/faces-config.xml" or end with ".facesconfig.xml" directly in the "META-INF" directory (considered applicationConfigurationResources)

Returns:

Throws:

java.io.IOException

getWrapped

public AnnotationProvider getWrapped()

Specified by:

getWrapped in interface javax.faces.FacesWrapper<AnnotationProvider>