Added support for setting/retrieving strategy to use.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@8134 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/util/cache/ExternalizableUtil.java

@@ -42,6 +42,28 @@ public class ExternalizableUtil {
         return instance;
     }
 
+
+    /**
+     * Sets the implementation to use for serializing and deserializing
+     * objects. 
+     *
+     * @param strategy the new strategy to use.
+     */
+    public void setStrategy(ExternalizableUtilStrategy strategy) {
+        this.strategy = strategy;
+    }
+
+    /**
+     * Returns the implementation to use for serializing and deserializing
+     * objects.
+     *
+     * @return the implementation to use for serializing and deserializing
+     * objects.
+     */
+    public ExternalizableUtilStrategy getStrategy() {
+        return strategy;
+    }
+
     /**
      * Hidding constructor. We only want one single instance.
      */