DateTimeFormat annotation supports use as a meta-annotation as well

spring-context/src/main/java/org/springframework/format/annotation/DateTimeFormat.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2012 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -41,10 +41,11 @@ import java.lang.annotation.Target;
  * When no annotation attributes are specified, the default format applied is style-based with a style code of 'SS' (short date, short time).
  * 
  * @author Keith Donald
+ * @author Juergen Hoeller
  * @since 3.0
  * @see org.joda.time.format.DateTimeFormat
  */
-@Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER})
+@Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface DateTimeFormat {