Refer to byte ordering in tutorial (fixes #52)

bp-alex · bp-alex · commit f13336894847 · 2017-07-05T15:08:23.000+10:00
diff --git a/src/test/java/org/lmdbjava/TutorialTest.java b/src/test/java/org/lmdbjava/TutorialTest.java
@@ -310,7 +310,9 @@ public void tutorial4() throws IOException {
       final ByteBuffer key = allocateDirect(env.getMaxKeySize());
       final ByteBuffer val = allocateDirect(700);
 
-      // Insert some data
+      // Insert some data. Note the ByteBuffer byte order is platform specific.
+      // LMDB does not store or set byte order, but it's critical to sort keys.
+      // If your numeric keys don't sort as expected, review buffer byte order.
       val.putInt(100);
       key.putInt(1);
       db.put(txn, key, val);
