private void writePersistenceUnit(Field field) throws XMLStreamException {
PersistenceUnit persistenceUnit = field.getAnnotation(PersistenceUnit.class);
if (persistenceUnit != null) {
writer.writeCharacters(" ");
writer.writeEmptyElement("jpa", "context", NS_JPA);
writer.writeAttribute("unitname", persistenceUnit.unitName());
writer.writeAttribute("property", field.getName());
writer.writeCharacters("\n");
}
}
@Override
public Object resolve(final Injectee injectee, final ServiceHandle<?> root) {
if (!injectee.getRequiredType().equals(EntityManagerFactory.class)) {
return null;
}
final PersistenceUnit annotation = injectee.getParent().getAnnotation(PersistenceUnit.class);
final String unitName = annotation.unitName();
if (!persistenceUnits.containsKey(unitName)) {
throw new ContainerException(
LocalizationMessages.PERSISTENCE_UNIT_NOT_CONFIGURED(unitName));
}
return Proxy.newProxyInstance(
this.getClass().getClassLoader(),
new Class[] {EntityManagerFactory.class},
new ThreadLocalNamedInvoker<EntityManagerFactory>(persistenceUnits.get(unitName)));
}