Updated pom files, added concepts component

[mdsal.git] / model / yang-ext / src / main / yang / yang-ext.yang

diff --git a/model/yang-ext/src/main/yang/yang-ext.yang b/model/yang-ext/src/main/yang/yang-ext.yang
new file mode 100644 (file)
index 0000000..9677a73
--- /dev/null
+++ b/model/yang-ext/src/main/yang/yang-ext.yang
@@ -0,0 +1,72 @@
+module yang-ext {\r
+    yang-version 1;\r
+    namespace "urn:opendaylight:yang:extension:yang-ext";\r
+    prefix "ext";\r
+    \r
+    contact "Anton Tkacik <ttkacik@cisco.com>";\r
+\r
+    revision "2013-07-09" {\r
+        description "";\r
+    }\r
+\r
+    // Augmentation name\r
+\r
+    extension "augment-identifier" {\r
+        description \r
+           "YANG language extension which assigns an identifier to \r
+            augmentation. Augment identifier is used to identify\r
+            specific augment statement by name. \r
+\r
+            The identifier syntax is defined formally defined by the rule\r
+            'identifier' in Section 12 of RFC 6020.\r
+\r
+            All augment identifiers defined in a namespace MUST be unique.\r
+            The namespace of augment identifiers is shared by module and\r
+            its submodules. \r
+            ";\r
+            /*\r
+                Discussion:\r
+                This extension allows for ease of development / debug\r
+                of YANG modules and it is suitable for code generation,\r
+                where each augment statement is nicely identified by\r
+                unique name instead of combination of augment target\r
+                and when condition. \r
+            */\r
+        argument "identifier";\r
+    }\r
+\r
+\r
+    // Context-aware RPCs\r
+\r
+    grouping rpc-context-ref {\r
+        description \r
+           "A reference to RPC context.";\r
+        leaf context-instance {\r
+            type instance-identifier;\r
+            description "Pointer to the context. ";\r
+        }\r
+    }\r
+\r
+    extension "rpc-context-instance" {\r
+        description\r
+           "YANG language extension which defines enclosing (parent) \r
+            schema node as referencable context for RPCs.\r
+\r
+            The argument is identity which is used to identify RPC context\r
+            type.";\r
+\r
+        argument "context-type";\r
+    }\r
+\r
+    extension "context-reference" {\r
+        argument "context-type";\r
+    }\r
+\r
+    extension "context-instance" {\r
+        argument "context-type";\r
+    }\r
+    \r
+    extension "instance-target" {\r
+       argument "path";\r
+    }\r
+}
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