#566 - Refactor internals - Initial tidy on OrmQueryDetail and OrmQueryDetailProperties

src/main/java/com/avaje/ebeaninternal/server/expression/Same.java

@@ -1,5 +1,8 @@
 package com.avaje.ebeaninternal.server.expression;
 
+import java.util.Collection;
+import java.util.Iterator;
+
 /**
  * Utility to help isSame methods.
  */
@@ -19,6 +22,26 @@ public class Same {
     return v1 == null ? v2 == null : v1.equals(v2);
   }
 
+  /**
+   * Return true if both collections are the same by value and order is taken into account.
+   */
+  public static boolean sameByValue(Collection<?> v1, Collection<?> v2) {
+    if (v1 == null) {
+      return v2 == null;
+    }
+    if (v2 == null || v1.size() != v2.size()) {
+      return false;
+    }
+    Iterator<?> thisIt = v1.iterator();
+    Iterator<?> thatIt = v2.iterator();
+    while (thisIt.hasNext() && thatIt.hasNext()) {
+      if (!thisIt.next().equals(thatIt.next())) {
+        return false;
+      }
+    }
+    return true;
+  }
+
   /**
    * Null safe check by sameByValue or sameByNull based on byValue.
    */