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-rw-r--r--vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistry.java9
1 files changed, 8 insertions, 1 deletions
diff --git a/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistry.java b/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistry.java
index c25b6536bb1..4515bb3fc20 100644
--- a/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistry.java
+++ b/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistry.java
@@ -62,8 +62,15 @@ public interface JVppRegistry extends AutoCloseable {
/**
* Sends control ping. Reply handler calls callback registered for give plugin.
*
+ * Control ping is used for initial RX thread to Java thread attachment
+ * that takes place in the plugin's JNI lib
+ * and to wrap dump message replies in one list.
+ *
+ * VPP plugins don't have to provide special control ping, therefore
+ * it is necessary to providing control ping support in JVppRegistry.
+
* @param clazz identifies plugin that should receive ping callback
- * @return unique identifer of message in message queue
+ * @return unique identifier of message in message queue
*/
int controlPing(final Class<? extends JVpp> clazz) throws VppInvocationException;
}