@Any in action: choosing implementations dynamically

AnyInAction_DynamicChoice.java

public class ParsingService{
  @Inject
  @Any
  Instance<Parser> parsers;
  
  public Parser chooseParser(){
    //@XMLParser (qualifier annotation) being enforced programmatically
    Parser selected = parsers.select(new XMLParserQualifier()).get();
    return (selected.isUnsatisfied() || selected.isAmbiguous()) ? null : selected;
  }
  
  //javax.enterprise.util.AnnotationLiteral project qualifiers as objects
  private static class XMLParserQualifier extends AnnotationLiteral<XMLParser> implements XMLParser{}
}