org.apache.webbeans.inject

Class AlternativesManager

java.lang.Object

org.apache.webbeans.inject.AlternativesManager

public class AlternativesManager
extends Object

This class has 2 responsibilities. 1.) to collect information about configured @Alternatives at boot time 2.) answer if a class is an enabled Alternative. This is needed for BeanManagerImpl.resolve(java.util.Set) The boot order for 1.) is to first register all the alternatives and stereotypes from the XML. After that the AnnotatedType scanning is performed and all @Alternatives with @Priority get added as well. We will also add classes which have an Alternative stereotype. After the AnnotatedTypes got scanned we have to fire the AfterTypeDiscovery event with the collected effective alternative classes sorted by their priority. Any extension can re-order the alternatives which then form the base of the resolve() handling at runtime.

Constructor Summary

Constructors

Constructor and Description
AlternativesManager(WebBeansContext webBeansContext)

Method Summary

Methods

Modifier and Type	Method and Description
void	addPriorityClazzAlternative(Class<?> clazz, Priority priority) This method is used to add Alternatives which have a @Priority annotation.
void	addXmlClazzAlternative(Class<?> alternative) This methods gets called while scanning the various beans.xml files.
void	addXmlStereoTypeAlternative(Class<?> alternative) This methods gets called while scanning the various beans.xml files.
void	clear()
List<Class<?>>	getPrioritizedAlternatives() Alternatives get ordered by their priority and as lowest priority all the alternatives added via XML get added.
Set<Class<?>>	getXmlConfiguredAlternatives()
boolean	isAlternative(javax.enterprise.inject.spi.Bean<?> bean)
boolean	isAlternative(Class<?> beanType, Set<Class<? extends Annotation>> stereotypes)

Methods inherited from class java.lang.Object

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

Constructor Detail

AlternativesManager

public AlternativesManager(WebBeansContext webBeansContext)

Method Detail

addXmlStereoTypeAlternative

public void addXmlStereoTypeAlternative(Class<?> alternative)

This methods gets called while scanning the various beans.xml files. It registers a <stereotype> alternative.

addXmlClazzAlternative

public void addXmlClazzAlternative(Class<?> alternative)

This methods gets called while scanning the various beans.xml files. It registers a <class> alternative.

addPriorityClazzAlternative

public void addPriorityClazzAlternative(Class<?> clazz,
                               Priority priority)

This method is used to add Alternatives which have a @Priority annotation. This is performed after the ProcessAnnotatedType events got fired.

getPrioritizedAlternatives

public List<Class<?>> getPrioritizedAlternatives()

Alternatives get ordered by their priority and as lowest priority all the alternatives added via XML get added.

Returns:

the list of sorted alternatives

isAlternative

public boolean isAlternative(javax.enterprise.inject.spi.Bean<?> bean)

Returns:

true if the given bean is a configured alternative

isAlternative

public boolean isAlternative(Class<?> beanType,
                    Set<Class<? extends Annotation>> stereotypes)

Returns:

true if the given bean is a configured alternative

getXmlConfiguredAlternatives

public Set<Class<?>> getXmlConfiguredAlternatives()

Returns:

all the alternative classes declared in beans.xml files

clear

public void clear()