Package org.springframework.http.codec.json

Class Jackson2JsonEncoder

java.lang.Object

org.springframework.http.codec.json.Jackson2CodecSupport

org.springframework.http.codec.json.AbstractJackson2Encoder

org.springframework.http.codec.json.Jackson2JsonEncoder

All Implemented Interfaces:

Encoder<Object>, HttpMessageEncoder<Object>

public class Jackson2JsonEncoder
extends AbstractJackson2Encoder

Encode from an Object stream to a byte stream of JSON objects using Jackson 2.x. For non-streaming use cases, Flux elements are collected into a List before serialization for performance reason.

Since:

5.0

Author:

Sebastien Deleuze, Arjen Poutsma

See Also:

• Jackson2JsonDecoder

Field Summary

Fields inherited from class org.springframework.http.codec.json.Jackson2CodecSupport

JSON_VIEW_HINT, logger

Constructor Summary

Constructors

Constructor	Description
Jackson2JsonEncoder()
Jackson2JsonEncoder(ObjectMapper mapper, MimeType... mimeTypes)

Method Summary

Modifier and Type	Method	Description
protected ObjectWriter	customizeWriter(ObjectWriter writer, MimeType mimeType, ResolvableType elementType, Map<String,Object> hints)	Subclasses can use this method to customize the ObjectWriter used for writing values.

Methods inherited from class org.springframework.http.codec.json.AbstractJackson2Encoder

canEncode, encode, encodeValue, getAnnotation, getEncodableMimeTypes, getEncodableMimeTypes, getEncodeHints, getJsonEncoding, getStreamingMediaTypes, getStreamingMediaTypeSeparator, setStreamingMediaTypes

Methods inherited from class org.springframework.http.codec.json.Jackson2CodecSupport

getHints, getJavaType, getMimeTypes, getMimeTypes, getObjectMapper, getObjectMapperRegistrations, getObjectMappersForType, getParameter, logWarningIfNecessary, registerObjectMappersForType, selectObjectMapper, setObjectMapper, supportsMimeType

Methods inherited from class java.lang.Object

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

Constructor Details

Jackson2JsonEncoder

public Jackson2JsonEncoder()

Jackson2JsonEncoder

public Jackson2JsonEncoder(ObjectMapper mapper,
 MimeType... mimeTypes)

Method Details

customizeWriter

protected ObjectWriter customizeWriter(ObjectWriter writer,
 @Nullable
 MimeType mimeType,
 ResolvableType elementType,
 @Nullable
 Map<String,Object> hints)

Description copied from class: AbstractJackson2Encoder

Subclasses can use this method to customize the ObjectWriter used for writing values.

Overrides:

customizeWriter in class AbstractJackson2Encoder

Parameters:

writer - the writer instance to customize

mimeType - the selected MIME type

elementType - the type of element values to write

hints - a map with serialization hints; the Reactor Context, when available, may be accessed under the key ContextView.class.getName()

Returns:

the customized ObjectWriter to use