org.springframework.kafka.streams

Class HeaderEnricher<K,V>

java.lang.Object

org.springframework.kafka.streams.HeaderEnricher<K,V>

Type Parameters:

K - the key type.

V - the value type.

All Implemented Interfaces:

org.apache.kafka.streams.kstream.Transformer<K,V,org.apache.kafka.streams.KeyValue<K,V>>

public class HeaderEnricher<K,V>
extends java.lang.Object
implements org.apache.kafka.streams.kstream.Transformer<K,V,org.apache.kafka.streams.KeyValue<K,V>>

Manipulate the headers.

Since:

2.3

Author:

Gary Russell

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HeaderEnricher.Container<K,V> Container object for SpEL evaluation.

Constructor Summary

Constructors

Constructor and Description
HeaderEnricher(java.util.Map<java.lang.String,org.springframework.expression.Expression> headerExpressions)

Method Summary

Modifier and Type	Method and Description
void	close()
void	init(org.apache.kafka.streams.processor.ProcessorContext context)
org.apache.kafka.streams.KeyValue<K,V>	transform(K key, V value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HeaderEnricher

public HeaderEnricher(java.util.Map<java.lang.String,org.springframework.expression.Expression> headerExpressions)

Method Detail

init

public void init(org.apache.kafka.streams.processor.ProcessorContext context)

Specified by:

init in interface org.apache.kafka.streams.kstream.Transformer<K,V,org.apache.kafka.streams.KeyValue<K,V>>

transform

public org.apache.kafka.streams.KeyValue<K,V> transform(K key,
                                                        V value)

Specified by:

transform in interface org.apache.kafka.streams.kstream.Transformer<K,V,org.apache.kafka.streams.KeyValue<K,V>>

close

public void close()

Specified by:

close in interface org.apache.kafka.streams.kstream.Transformer<K,V,org.apache.kafka.streams.KeyValue<K,V>>