Added javadoc (#10378)

Change-Id: I18534804059b725131d0abcc683760461098ff7f

diff --git a/client/src/com/vaadin/client/extensions/AbstractExtensionConnector.java b/client/src/com/vaadin/client/extensions/AbstractExtensionConnector.java
index ee5771e6e0ad50cdadcf01bf3365cb8ce916168d..ebc2d59919041d2af5b229c4aa363ae16540f61d 100644 (file)
--- a/client/src/com/vaadin/client/extensions/AbstractExtensionConnector.java
+++ b/client/src/com/vaadin/client/extensions/AbstractExtensionConnector.java
@@ -42,5 +42,12 @@ public abstract class AbstractExtensionConnector extends AbstractConnector {
         }
     }
 
+    /**
+     * Called when the extension is attached to its parent. This method is only
+     * called once as an extension cannot be moved from one parent to another.
+     * 
+     * @param target
+     *            The connector this extension extends
+     */
     protected abstract void extend(ServerConnector target);
 }