THRIFT-85. Include an example of an optional field in tutorial.thrift

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@679501 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 6 insertions, 1 deletions

diff --git a/tutorial/tutorial.thrift b/tutorial/tutorial.thrift
index 6e8393988..bc199e428 100755
--- a/tutorial/tutorial.thrift
+++ b/tutorial/tutorial.thrift
@@ -78,11 +78,16 @@ enum Operation {
  * Structs are the basic complex data structures. They are comprised of fields
  * which each have an integer identifier, a type, a symbolic name, and an
  * optional default value.
+ *
+ * Fields can be declared "optional", which ensures they will not be included
+ * in the serialized output if they aren't set.  Note that this requires some
+ * manual management in some languages.
  */
 struct Work {
   1: i32 num1 = 0,
   2: i32 num2,
-  3: Operation op
+  3: Operation op,
+  4: optional string comment,
 }
 
 /**