Add result transformer

src/main/java/it/mgt/uti/jpajsonsearch/JpaJsonSearchResult.java

@@ -35,4 +35,8 @@ public int getPageSize() {
     public int getPages() {
         return (int) Math.round(Math.ceil(count.doubleValue() / pageSize));
     }
+
+    public <V> List<V> transform(JpaJsonSearchResultTransformer<T> transformer) {
+        return transformer.transform(values);
+    }
 }

src/main/java/it/mgt/uti/jpajsonsearch/JpaJsonSearchResultTransformer.java

@@ -0,0 +1,9 @@
+package it.mgt.uti.jpajsonsearch;
+
+import java.util.List;
+
+public interface JpaJsonSearchResultTransformer<T> {
+
+    <V> List<V> transform(List<T> result);
+
+}