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https://issues.apache.org/jira/browse/KAFKA-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Guo updated KAFKA-4449:
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Description:
Currently, there are only build-in serializer/deserializer for basic data type
(String, Long, etc). It's better to have serializer/deserializer for POJO.
If we had this, user can serialize/deserialize all of their POJO with it.
Otherwise, user may need to create e pair of serializer and deserializer for
each kind of POJO, just like the implementation in the stream example
PageViewTypeDemo
https://github.com/apache/kafka/blob/trunk/streams/examples/src/main/java/org/apache/kafka/streams/examples/pageview/PageViewTypedDemo.java
Let's take above streams-example as an example, Serde was created for PageView
as below
final Serializer<PageView> pageViewSerializer = new JsonPOJOSerializer<>();
serdeProps.put("JsonPOJOClass", PageView.class);
pageViewSerializer.configure(serdeProps, false);
final Deserializer<PageView> pageViewDeserializer = new
JsonPOJODeserializer<>();
serdeProps.put("JsonPOJOClass", PageView.class);
pageViewDeserializer.configure(serdeProps, false);
final Serde<PageView> pageViewSerde = Serdes.serdeFrom(pageViewSerializer,
pageViewDeserializer);
If we use this POJO serializer/deserializer, the Serde can be created with only
one line
Serdes.serdeFrom(RegionCount.class)
was:
Currently, there are only build-in serializer/deserializer for basic data type.
It's better to have serializer/deserializer for POJO.
If we had this, user can serialize/deserialize all of their POJO with it.
Otherwise, user may need to create e pair of serializer and deserializer for
each kind of POJO, just like the implementation in the stream example
PageViewTypeDemo
https://github.com/apache/kafka/blob/trunk/streams/examples/src/main/java/org/apache/kafka/streams/examples/pageview/PageViewTypedDemo.java
> Add Serializer/Deserializer for POJO
> ------------------------------------
>
> Key: KAFKA-4449
> URL: https://issues.apache.org/jira/browse/KAFKA-4449
> Project: Kafka
> Issue Type: Improvement
> Components: clients
> Affects Versions: 0.10.0.1
> Reporter: Jason Guo
> Priority: Minor
> Labels: easyfix, features
> Fix For: 0.10.1.0
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Currently, there are only build-in serializer/deserializer for basic data
> type (String, Long, etc). It's better to have serializer/deserializer for
> POJO.
> If we had this, user can serialize/deserialize all of their POJO with it.
> Otherwise, user may need to create e pair of serializer and deserializer for
> each kind of POJO, just like the implementation in the stream example
> PageViewTypeDemo
> https://github.com/apache/kafka/blob/trunk/streams/examples/src/main/java/org/apache/kafka/streams/examples/pageview/PageViewTypedDemo.java
> Let's take above streams-example as an example, Serde was created for
> PageView as below
> final Serializer<PageView> pageViewSerializer = new
> JsonPOJOSerializer<>();
> serdeProps.put("JsonPOJOClass", PageView.class);
> pageViewSerializer.configure(serdeProps, false);
> final Deserializer<PageView> pageViewDeserializer = new
> JsonPOJODeserializer<>();
> serdeProps.put("JsonPOJOClass", PageView.class);
> pageViewDeserializer.configure(serdeProps, false);
> final Serde<PageView> pageViewSerde =
> Serdes.serdeFrom(pageViewSerializer, pageViewDeserializer);
> If we use this POJO serializer/deserializer, the Serde can be created with
> only one line
> Serdes.serdeFrom(RegionCount.class)
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