--- a/Lib/IMPL/ORM/Schema/Field.pm	Thu Jan 07 15:34:42 2010 +0300
+++ b/Lib/IMPL/ORM/Schema/Field.pm	Thu Jan 07 15:41:49 2010 +0300
@@ -8,6 +8,7 @@
 BEGIN {
     public property fieldName => prop_get | owner_set;
     public property fieldType => prop_get | owner_set;
+    public property fieldNullbale => prop_get | owner_set;
 }
 
 our %CTOR = (
@@ -15,10 +16,11 @@
 );
 
 sub CTOR {
-    my ($this,$name,$type) = @_;
+    my ($this,$name,$type,$nullable) = @_;
     
     $this->fieldName($name) or die new IMPL::InvalidArgumentException('A name is required for the field');
     $this->fieldType($type) or die new IMPL::InvalidArgumentException('A type is required for the field');
+    $this->fieldNullbale(1) if $nullable;
 }
 
 sub canHaveChildren {