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https://issues.apache.org/jira/browse/FLINK-7632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184154#comment-16184154
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ASF GitHub Bot commented on FLINK-7632:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/4696#discussion_r141612087
--- Diff: docs/dev/connectors/cassandra.md ---
@@ -35,37 +43,47 @@ To use this connector, add the following dependency to
your project:
</dependency>
{% endhighlight %}
-Note that the streaming connectors are currently not part of the binary
distribution. See how to link with them for cluster execution [here]({{
site.baseurl}}/dev/linking.html).
+Note that the streaming connectors are currently __NOT__ part of the
binary distribution. See how to link with them for cluster execution [here]({{
site.baseurl}}/dev/linking.html).
+
+## Installing Apache Cassandra
+There are multiple ways to bring up a Cassandra instance on local machine:
+
+1. Follow the instructions from [Cassandra Getting Started
page](http://cassandra.apache.org/doc/latest/getting_started/index.html).
+2. Launch a container running Cassandra from [Official Docker
Repository](https://hub.docker.com/_/cassandra/)
-#### Installing Apache Cassandra
-Follow the instructions from the [Cassandra Getting Started
page](http://wiki.apache.org/cassandra/GettingStarted).
+## Cassandra Sink
+Flink Cassandra connector currently supports Apache Cassandra as a data
sink.
-#### Cassandra Sink
+### Configurations
Flink's Cassandra sink are created by using the static
CassandraSink.addSink(DataStream<IN> input) method.
-This method returns a CassandraSinkBuilder, which offers methods to
further configure the sink.
+This method returns a CassandraSinkBuilder, which offers methods to
further configure the sink, and finally `build()` the sink instance.
The following configuration methods can be used:
-1. setQuery(String query)
-2. setHost(String host[, int port])
-3. setClusterBuilder(ClusterBuilder builder)
-4. enableWriteAheadLog([CheckpointCommitter committer])
-5. build()
+1. _setQuery(String query)_
+ * sets the upsert query that is executed for every record the sink
receives.
+ * internally treated as CQL prepared statement, in which parameters
could be shared or anonymous.
+ * __DO__ set the upsert query for processing __Tuple__ data type
+ * __DO NOT__ set the query for processing __POJO__ data type.
--- End diff --
type -> types
> Better documentation and examples on C* sink usage for Pojo and Tuples data
> types
> ---------------------------------------------------------------------------------
>
> Key: FLINK-7632
> URL: https://issues.apache.org/jira/browse/FLINK-7632
> Project: Flink
> Issue Type: Sub-task
> Components: Cassandra Connector, Documentation
> Reporter: Michael Fong
> Assignee: Michael Fong
>
> Cassandra sink supports Pojo and Java Tuple data types. We should improve
> documentation on its usage as well as some concrete / meaningful examples for
> both cases.
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