org.omnifaces.cdi.param

Class ParamExtension

java.lang.Object

org.omnifaces.cdi.param.ParamExtension

All Implemented Interfaces:

jakarta.enterprise.inject.spi.Extension

public class ParamExtension
extends Object
implements jakarta.enterprise.inject.spi.Extension

CDI extension that works around the fact that CDI insists on doing absolutely guaranteed type safe injections. While generally applaudable this unfortunately impedes writing true generic producers that dynamically do conversion based on the target type.

This extension collects the target types of each injection point qualified with the @Param annotation and dynamically registers Beans that effectively represents producers for each type.

Since OmniFaces 3.6, this extension also scans for @Param without @Inject and manually takes care of them while creating the bean.

Since:

2.0

Author:

Arjan Tijms

Constructor Summary

Constructors

Constructor and Description
ParamExtension()

Method Summary

Modifier and Type	Method and Description
<T> void	collectParams(jakarta.enterprise.inject.spi.ProcessInjectionTarget<T> event)
void	processParamsWithInject(jakarta.enterprise.inject.spi.AfterBeanDiscovery event)
static <T> void	processParamsWithoutInject(jakarta.enterprise.inject.spi.ProcessInjectionTarget<T> event, Set<jakarta.enterprise.inject.spi.AnnotatedField<?>> paramsWithoutInject)

Methods inherited from class java.lang.Object

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

Constructor Detail

ParamExtension

public ParamExtension()

Method Detail

collectParams

public <T> void collectParams(@Observes
                              jakarta.enterprise.inject.spi.ProcessInjectionTarget<T> event)

processParamsWithInject

public void processParamsWithInject(@Observes
                                    jakarta.enterprise.inject.spi.AfterBeanDiscovery event)

processParamsWithoutInject

public static <T> void processParamsWithoutInject(jakarta.enterprise.inject.spi.ProcessInjectionTarget<T> event,
                                                  Set<jakarta.enterprise.inject.spi.AnnotatedField<?>> paramsWithoutInject)