@@ -18,10 +18,11 @@
 
 #import "OFObject.h"
 #import "OFCollection.h"
 #import "OFEnumerator.h"
 #import "OFSerialization.h"
+#import "OFJSON.h"
 
 @class OFString;
 
 #ifdef OF_HAVE_BLOCKS
 typedef void (^of_array_enumeration_block_t)(id object, size_t index,
@@ -33,11 +34,11 @@
 
 /**
  * \brief An abstract class for storing objects in an array.
  */
 @interface OFArray: OFObject <OFCopying, OFMutableCopying, OFCollection,
-    OFSerialization>
+    OFSerialization, OFJSON>
 /**
  * \brief Creates a new OFArray.
  *
  * \return A new autoreleased OFArray
  */
@@ -230,10 +231,21 @@
  * \param separator The string with which the objects should be joined
  * \return A string containing all objects joined by the separator
  */
 - (OFString*)componentsJoinedByString: (OFString*)separator;
 
+/**
+ * \brief Creates a string by calling the selector on all objects of the array
+ *	  and joining the strings returned by calling the selector.
+ *
+ * \param separator The string with which the objects should be joined
+ * \param selector The selector to perform on the objects
+ * \return A string containing all objects joined by the separator
+ */
+- (OFString*)componentsJoinedByString: (OFString*)separator
+			usingSelector: (SEL)selector;
+
 /**
  * \brief Performs the specified selector on all objects in the array.
  *
  * \param selector The selector to perform on all objects in the array
  */