svn commit: r1136344 - /wicket/trunk/wicket-util/src/main/java/org/apache/wicket/util/lang/Args.java

[mgrigorov]

Author: mgrigorov
Date: Thu Jun 16 09:38:12 2011
New Revision: 1136344

URL: http://svn.apache.org/viewvc?rev=1136344&view=rev
Log:
Make Args.notEmpty() smarter.
Improve its javadocs.


Modified:
    wicket/trunk/wicket-util/src/main/java/org/apache/wicket/util/lang/Args.java

Modified: 
wicket/trunk/wicket-util/src/main/java/org/apache/wicket/util/lang/Args.java
URL: 
http://svn.apache.org/viewvc/wicket/trunk/wicket-util/src/main/java/org/apache/wicket/util/lang/Args.java?rev=1136344&r1=1136343&r2=1136344&view=diff
==============================================================================
--- 
wicket/trunk/wicket-util/src/main/java/org/apache/wicket/util/lang/Args.java 
(original)
+++ 
wicket/trunk/wicket-util/src/main/java/org/apache/wicket/util/lang/Args.java 
Thu Jun 16 09:38:12 2011
@@ -44,17 +44,22 @@ public class Args
        /**
         * Checks argument is not empty (not null and has a non-whitespace 
character)
         * 
+        * @param <T>
+        *            the type of the argument to check for emptiness
+        * 
         * @param argument
+        *            the argument to check for emptiness
         * @param name
-        * @return The 'argument' parameter
+        *            the name to use in the error message
+        * @return The {@code argument} parameter if not empty
         * @throws IllegalArgumentException
+        *             when the passed {@code argument} is empty
         */
-       public static CharSequence notEmpty(final CharSequence argument, final 
String name)
+       public static <T extends CharSequence> T notEmpty(final T argument, 
final String name)
        {
                if (Strings.isEmpty(argument))
                {
-                       throw new IllegalArgumentException("Argument '" + name +
-                               "' may not be null or empty string.");
+                       throw new IllegalArgumentException("Argument '" + name 
+ "' may not be null or empty.");
                }
                return argument;
        }