[GitHub] [helix] pkuwm commented on a change in pull request #1332: Fix PreFetch annotation in ZkClient and CallbackHandler

[GitBox <gi...@apache.org>]

pkuwm commented on a change in pull request #1332:
URL: https://github.com/apache/helix/pull/1332#discussion_r479586914



##########
File path: zookeeper-api/src/main/java/org/apache/helix/zookeeper/zkclient/annotation/PreFetchChangedData.java
##########
@@ -22,8 +22,19 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
-
+/**
+ * An annotation used to prefetch changed data for
+ * {@link org.apache.helix.zookeeper.zkclient.IZkDataListener} in ZkClient.
+ * <p>
+ * Example:
+ * <pre>
+ * {@code @PreFetch(enabled = false)}
+ *  public class MyCallback implements IZkDataListener
+ * </pre>
+ * {@code @PreFetch(enabled = false)} means data will not be prefetched in ZkClient before
+ * handling data change.
+ */

Review comment:
       Sure. I'll this.




----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@helix.apache.org
For additional commands, e-mail: reviews-help@helix.apache.org