rename class

compare objects instead of strings
fix comparison

git-svn-id: http://trooper/svn/projects/jSite/trunk@894 c3eda9e8-030b-0410-8277-bc7414b0a119

diff --git a/src/net/pterodactylus/util/beans/Comparer.java b/src/net/pterodactylus/util/beans/Comparer.java
new file mode 100644 (file)
index 0000000..68c5264
--- /dev/null
+++ b/src/net/pterodactylus/util/beans/Comparer.java
@@ -0,0 +1,46 @@
+/*
+ * jSite2 - StringComparer.java
+ * Copyright © 2008 David Roden
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+package net.pterodactylus.util.beans;
+
+/**
+ * Compares different objects. Can be used to detect change in property values.
+ * 
+ * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
+ * @version $Id$
+ */
+public class Comparer {
+
+       /**
+        * Compares the two objects and returns whether they are equal according to
+        * {@link Object#equals(Object)}. This method takes <code>null</code>
+        * into account as a valid value for an object.
+        * 
+        * @param first
+        *            The first object
+        * @param second
+        *            The second object
+        * @return <code>true</code> if the two objects are equal,
+        *         <code>false</code> otherwise
+        */
+       public static boolean equal(Object first, Object second) {
+               return ((first == null) && (second == null)) || ((first != null) && first.equals(second)) || ((second != null) && second.equals(first));
+       }
+
+}