diff -r dee0b5da8805 openide.filesystems/src/org/openide/filesystems/MIMEResolver.java
--- a/openide.filesystems/src/org/openide/filesystems/MIMEResolver.java	Sun Jan 08 18:24:40 2012 +0100
+++ b/openide.filesystems/src/org/openide/filesystems/MIMEResolver.java	Tue Jan 10 11:57:59 2012 +0100
@@ -43,6 +43,10 @@
  */
 package org.openide.filesystems;
 
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
 import java.util.Collection;
 import java.util.Map;
 import java.util.Set;
@@ -178,4 +182,26 @@
         }
     }
 
+    /** Declarative registration of a {@link MIMEResolver}. Allows simple 
+     * registration in the most common cases via annotations attributes and 
+     * complex registration by pointing to the rich XML definition. This
+     * annotation is processed during compile time and generates effective
+     * representation of the declaration in layer file.
+     * @since 7.60
+     */
+    @Target({ ElementType.CONSTRUCTOR, ElementType.FIELD, ElementType.METHOD, ElementType.PACKAGE, ElementType.TYPE })
+    @Retention(RetentionPolicy.SOURCE)
+    public static @interface Registration {
+        /** The mime type this registration represents */
+        public String mimeType();
+        /** Extension(s) of a file to be recognized. */
+        public String[] extension();
+        /** Reference to detailed definition of the recognition rules. If this
+         * attribute is specified, leave {@link #extension()} empty - e.g. assigned
+         * to <code>{}</code>.
+         * 
+         * @return relative path to the XML file describing registration for this mime type
+         */
+        public String definition() default "";
+    }
 }