Class JsonObjectDeserializer<T>

java.lang.Object

com.fasterxml.jackson.databind.JsonDeserializer<T>

org.springframework.boot.jackson2.JsonObjectDeserializer<T>

Type Parameters:

T - the supported object type

All Implemented Interfaces:

NullValueProvider

@Deprecated(since="4.0.0",
            forRemoval=true)
public abstract class JsonObjectDeserializer<T>
extends JsonDeserializer<T>

Deprecated, for removal: This API element is subject to removal in a future version.

since 4.0.0 for removal in 4.3.0 in favor of Jackson 3 and ObjectValueDeserializer

Helper base class for JsonDeserializer implementations that deserialize objects.

Since:

4.0.0

Author:

Phillip Webb

See Also:

• JsonObjectSerializer

Nested Class Summary

Nested classes/interfaces inherited from class JsonDeserializer

JsonDeserializer.None

Constructor Summary

Constructors

Constructor	Description
JsonObjectDeserializer()	Deprecated, for removal: This API element is subject to removal in a future version.

Method Summary

Modifier and Type	Method	Description
final T	deserialize(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt)	Deprecated, for removal: This API element is subject to removal in a future version.
protected abstract T	deserializeObject(com.fasterxml.jackson.core.JsonParser jsonParser, DeserializationContext context, com.fasterxml.jackson.core.ObjectCodec codec, JsonNode tree)	Deprecated, for removal: This API element is subject to removal in a future version. Deserialize JSON content into the value type this serializer handles.
protected final JsonNode	getRequiredNode(JsonNode tree, String fieldName)	Deprecated, for removal: This API element is subject to removal in a future version. Helper method to return a JsonNode from the tree.
protected final <D> @Nullable D	nullSafeValue(JsonNode jsonNode, Class<D> type)	Deprecated, for removal: This API element is subject to removal in a future version. Helper method to extract a value from the given jsonNode or return null when the node itself is null.
protected final <D,R> @Nullable R	nullSafeValue(JsonNode jsonNode, Class<D> type, Function<D,R> mapper)	Deprecated, for removal: This API element is subject to removal in a future version. Helper method to extract a value from the given jsonNode or return null when the node itself is null.

Methods inherited from class JsonDeserializer

deserialize, deserializeWithType, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, handledType, isCachable, logicalType, replaceDelegatee, supportsUpdate, unwrappingDeserializer

Methods inherited from class Object

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

Constructor Details

JsonObjectDeserializer

public JsonObjectDeserializer()

Deprecated, for removal: This API element is subject to removal in a future version.

Method Details

deserialize

public final T deserialize(com.fasterxml.jackson.core.JsonParser jp,
 DeserializationContext ctxt)
                    throws IOException

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

deserialize in class JsonDeserializer<T>

Throws:

IOException

deserializeObject

protected abstract T deserializeObject(com.fasterxml.jackson.core.JsonParser jsonParser,
 DeserializationContext context,
 com.fasterxml.jackson.core.ObjectCodec codec,
 JsonNode tree)
                                throws IOException

Deprecated, for removal: This API element is subject to removal in a future version.

Deserialize JSON content into the value type this serializer handles.

Parameters:

jsonParser - the source parser used for reading JSON content

context - context that can be used to access information about this deserialization activity

codec - the ObjectCodec associated with the parser

tree - deserialized JSON content as tree expressed using set of TreeNode instances

Returns:

the deserialized object

Throws:

IOException - on error

See Also:

• deserialize(JsonParser, DeserializationContext)

nullSafeValue

protected final <D,R> @Nullable R nullSafeValue(JsonNode jsonNode,
 Class<D> type,
 Function<D,R> mapper)

Deprecated, for removal: This API element is subject to removal in a future version.

Helper method to extract a value from the given jsonNode or return null when the node itself is null.

Type Parameters:

D - the data type requested

R - the result type

Parameters:

jsonNode - the source node (may be null)

type - the data type. May be String, Boolean, Long, Integer, Short, Double, Float, BigDecimal or BigInteger.

mapper - a mapper to convert the value when it is not null

Returns:

the node value or null

nullSafeValue

protected final <D> @Nullable D nullSafeValue(JsonNode jsonNode,
 Class<D> type)

Deprecated, for removal: This API element is subject to removal in a future version.

Helper method to extract a value from the given jsonNode or return null when the node itself is null.

Type Parameters:

D - the data type requested

Parameters:

jsonNode - the source node (may be null)

type - the data type. May be String, Boolean, Long, Integer, Short, Double, Float, BigDecimal or BigInteger.

Returns:

the node value or null

getRequiredNode

protected final JsonNode getRequiredNode(JsonNode tree,
 String fieldName)

Deprecated, for removal: This API element is subject to removal in a future version.

Helper method to return a JsonNode from the tree.

Parameters:

tree - the source tree

fieldName - the field name to extract

Returns:

the JsonNode