diff -r 2d0750864a98 -r 58596208d06d chat/shared/src/main/java/org/apidesign/demo/chat/shared/MessageImpl.java
--- a/chat/shared/src/main/java/org/apidesign/demo/chat/shared/MessageImpl.java	Fri Apr 22 08:53:13 2016 +0200
+++ b/chat/shared/src/main/java/org/apidesign/demo/chat/shared/MessageImpl.java	Fri Apr 22 18:13:09 2016 +0200
@@ -51,15 +51,15 @@
         return delta + "min";
     }
 
-    @Model(className = "Query", builder = "assign", properties = {
-        @Property(name = "since", type = int.class),
+    @Model(className = "Query", builder = "request", properties = {
+        @Property(name = "all", type = boolean.class),
         @Property(name = "post", type = Message.class),
     })
     class QueryCntrl {
     }
     
     @Model(className = "Reply", properties = {
-        @Property(name = "since", type = int.class),
+        @Property(name = "all", type = boolean.class),
         @Property(name = "messages", type = Message.class, array = true)
     })
     class ReplyCntrl {