package org.infinispan.cdi.embedded.event.cache;
import javax.enterprise.event.Event;
import javax.enterprise.util.TypeLiteral;
import org.infinispan.Cache;
import org.infinispan.metadata.Metadata;
import org.infinispan.notifications.Listener;
import org.infinispan.notifications.cachelistener.annotation.CacheEntryLoaded;
import org.infinispan.notifications.cachelistener.event.CacheEntryLoadedEvent;
import org.infinispan.transaction.xa.GlobalTransaction;
/**
* Event bridge for {@link org.infinispan.notifications.cachelistener.annotation.CacheEntryLoaded}.
*
* @author Pete Muir
* @author Sebastian Laskawiec
* @see org.infinispan.notifications.Listener
* @see org.infinispan.notifications.cachelistener.annotation.CacheEntryLoaded
*/
@Listener
public class CacheEntryLoadedAdapter<K, V> extends AbstractAdapter<CacheEntryLoadedEvent<K, V>> {
/**
* CDI does not allow parametrized type for events (like <code><K,V></code>). This is why this wrapped needs to be
* introduced. To ensure type safety, this needs to be linked to parent class (in other words this class can not
* be static).
*/
private class CDICacheEntryLoadedEvent implements CacheEntryLoadedEvent<K, V> {
private CacheEntryLoadedEvent<K, V> decoratedEvent;
private CDICacheEntryLoadedEvent(CacheEntryLoadedEvent<K, V> decoratedEvent) {
this.decoratedEvent = decoratedEvent;
}
@Override
public V getValue() {
return decoratedEvent.getValue();
}
@Override
public K getKey() {
return decoratedEvent.getKey();
}
@Override
public Metadata getMetadata() {
return decoratedEvent.getMetadata();
}
@Override
public GlobalTransaction getGlobalTransaction() {
return decoratedEvent.getGlobalTransaction();
}
@Override
public boolean isOriginLocal() {
return decoratedEvent.isOriginLocal();
}
@Override
public Type getType() {
return decoratedEvent.getType();
}
@Override
public boolean isPre() {
return decoratedEvent.isPre();
}
@Override
public Cache<K, V> getCache() {
return decoratedEvent.getCache();
}
}
/**
* Needed for creating event bridge.
*/
public static final CacheEntryLoadedEvent<?, ?> EMPTY = new CacheEntryLoadedEvent<Object, Object>() {
@Override
public Type getType() {
return null;
}
@Override
public Object getKey() {
return null;
}
@Override
public GlobalTransaction getGlobalTransaction() {
return null;
}
@Override
public boolean isOriginLocal() {
return false;
}
@Override
public boolean isPre() {
return false;
}
@Override
public Cache<Object, Object> getCache() {
return null;
}
@Override
public Object getValue() {
return null;
}
@Override
public Metadata getMetadata() {
return null;
}
};
/**
* Events which will be selected (including generic type information (<code><?, ?></code>).
*/
@SuppressWarnings("serial")
public static final TypeLiteral<CacheEntryLoadedEvent<?, ?>> WILDCARD_TYPE = new TypeLiteral<CacheEntryLoadedEvent<?, ?>>() {
};
public CacheEntryLoadedAdapter(Event<CacheEntryLoadedEvent<K, V>> event) {
super(event);
}
@Override
@CacheEntryLoaded
public void fire(CacheEntryLoadedEvent<K, V> payload) {
super.fire(new CDICacheEntryLoadedEvent(payload));
}
}