StdDelegatingDeserializer (jackson-databind 2.18.2)

java.lang.Object
- com.fasterxml.jackson.databind.JsonDeserializer<T>
- - com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>
  - - com.fasterxml.jackson.databind.deser.std.StdDelegatingDeserializer<T>

Type Parameters:

T - Target type to convert to, from delegate type

All Implemented Interfaces:

ContextualDeserializer, NullValueProvider, ResolvableDeserializer, ValueInstantiator.Gettable, Serializable
```
public class StdDelegatingDeserializer<T>
extends StdDeserializer<T>
implements ContextualDeserializer, ResolvableDeserializer
```
Deserializer implementation where given Java type is first deserialized by a standard Jackson deserializer into a delegate type; and then this delegate type is converted using a configured Converter into desired target type. Common delegate types to use are Map and JsonNode.
Note that although types (delegate, target) may be related, they must not be same; trying to do this will result in an exception.
Since 2.5 There is StdNodeBasedDeserializer that is a simplified version for cases where intermediate type is JsonNode
NOTE: in Jackson 3.0 this class will be renamed as StdConvertingDeserializer.

Since:

2.1

See Also:

StdNodeBasedDeserializer, Converter, Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer
  JsonDeserializer.None

Field Summary

Fields
Modifier and Type	Field and Description
`protected Converter<Object,T>`	`_converter` Converter that was used for creating `_delegateDeserializer`.
`protected JsonDeserializer<Object>`	`_delegateDeserializer` Underlying serializer for type `T`.
`protected JavaType`	`_delegateType` Fully resolved delegate type, with generic information if any available.

Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer
_valueClass, _valueType, F_MASK_ACCEPT_ARRAYS, F_MASK_INT_COERCIONS

Constructor Summary

Constructors
Modifier	Constructor and Description
	`StdDelegatingDeserializer(Converter<?,T> converter)`
	`StdDelegatingDeserializer(Converter<Object,T> converter, JavaType delegateType, JsonDeserializer<?> delegateDeserializer)`
`protected`	`StdDelegatingDeserializer(StdDelegatingDeserializer<T> src)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected T`	`_convertIfNonNull(Object delegateValue)`
`protected Object`	`_handleIncompatibleUpdateValue(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, Object intoValue)` Overridable handler method called when `deserialize(JsonParser, DeserializationContext, Object)` has been called with a value that is not compatible with delegate value.
`protected T`	`convertValue(Object delegateValue)` Method called to convert from "delegate value" (which was deserialized from JSON using standard Jackson deserializer for delegate type) into desired target type.
`JsonDeserializer<?>`	`createContextual(DeserializationContext ctxt, BeanProperty property)` Method called to see if a different (or differently configured) deserializer is needed to deserialize values of specified property.
`T`	`deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)` Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles.
`T`	`deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, Object intoValue)` Alternate deserialization method (compared to the most commonly used, `JsonDeserializer.deserialize(JsonParser, DeserializationContext)`), which takes in initialized value instance, to be configured and/or populated by deserializer.
`Object`	`deserializeWithType(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer)` Base implementation that does not assume specific type inclusion mechanism.
`Object`	`deserializeWithType(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer, T intoValue)` Method similar to `JsonDeserializer.deserializeWithType(JsonParser,DeserializationContext,TypeDeserializer)` but called when merging value.
`Object`	`getAbsentValue(DeserializationContext ctxt)` Method called to determine placeholder value to be used for cases where no value was obtained from input but we must pass a value nonetheless: the common case is that of Creator methods requiring passing a value for every parameter.
`JsonDeserializer<?>`	`getDelegatee()` Accessor that can be used to determine if this deserializer uses another deserializer for actual deserialization, by delegating calls.
`AccessPattern`	`getEmptyAccessPattern()` This method may be called in conjunction with calls to `JsonDeserializer.getEmptyValue(DeserializationContext)`, to check whether it needs to be called just once (static values), or each time empty value is needed.
`Object`	`getEmptyValue(DeserializationContext ctxt)` Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings).
`Collection<Object>`	`getKnownPropertyNames()` Method that will either return null to indicate that type being deserializers has no concept of properties; or a collection of identifiers for which `toString` will give external property name.
`AccessPattern`	`getNullAccessPattern()` This method may be called in conjunction with calls to `JsonDeserializer.getNullValue(DeserializationContext)`, to check whether it needs to be called just once (static values), or each time empty value is needed.
`T`	`getNullValue(DeserializationContext ctxt)` Method that can be called to determine value to be used for representing null values (values deserialized when JSON token is `JsonToken.VALUE_NULL`).
`Class<?>`	`handledType()` Method for accessing concrete physical type of values this deserializer produces.
`boolean`	`isCachable()` Method called to see if deserializer instance is cachable and usable for other properties of same type (type for which instance was created).
`LogicalType`	`logicalType()` Method for accessing logical type of values this deserializer produces.
`JsonDeserializer<T>`	`replaceDelegatee(JsonDeserializer<?> delegatee)` Method that can be called to try to replace deserializer this deserializer delegates calls to.
`void`	`resolve(DeserializationContext ctxt)` Method called after deserializer instance has been constructed (and registered as necessary by provider objects), but before it has returned it to the caller.
`Boolean`	`supportsUpdate(DeserializationConfig config)` Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not.
`JsonDeserializer<T>`	`unwrappingDeserializer(NameTransformer unwrapper)` Method that will return deserializer instance that is able to handle "unwrapped" value instances If no unwrapped instance can be constructed, will simply return this object as-is.
`protected StdDelegatingDeserializer<T>`	`withDelegate(Converter<Object,T> converter, JavaType delegateType, JsonDeserializer<?> delegateDeserializer)` Method used for creating resolved contextual instances.

Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer
_byteOverflow, _checkBooleanToStringCoercion, _checkCoercionFail, _checkDoubleSpecialValue, _checkFloatSpecialValue, _checkFloatToIntCoercion, _checkFloatToStringCoercion, _checkFromStringCoercion, _checkFromStringCoercion, _checkIntToFloatCoercion, _checkIntToStringCoercion, _checkTextualNull, _checkToStringCoercion, _coerceBooleanFromInt, _coercedTypeDesc, _coercedTypeDesc, _coerceEmptyString, _coerceIntegral, _coerceNullToken, _coerceTextualNull, _deserializeFromArray, _deserializeFromEmpty, _deserializeFromEmptyString, _deserializeFromString, _deserializeWrappedValue, _failDoubleToIntCoercion, _findCoercionFromBlankString, _findCoercionFromEmptyArray, _findCoercionFromEmptyString, _findNullProvider, _hasTextualNull, _intOverflow, _isBlank, _isEmptyOrTextualNull, _isFalse, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _isTrue, _neitherNull, _nonNullNumber, _parseBoolean, _parseBooleanFromInt, _parseBooleanPrimitive, _parseBooleanPrimitive, _parseBytePrimitive, _parseDate, _parseDate, _parseDateFromArray, _parseDouble, _parseDouble, _parseDoublePrimitive, _parseDoublePrimitive, _parseDoublePrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseInteger, _parseInteger, _parseIntPrimitive, _parseIntPrimitive, _parseLong, _parseLong, _parseLongPrimitive, _parseLongPrimitive, _parseShortPrimitive, _parseString, _parseString, _reportFailedNullCoerce, _shortOverflow, _verifyEndArrayForSingle, _verifyNullForPrimitive, _verifyNullForPrimitiveCoercion, _verifyNullForScalarCoercion, _verifyNumberForScalarCoercion, _verifyStringForScalarCoercion, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueClass, getValueInstantiator, getValueType, getValueType, handleMissingEndArrayForSingle, handleNestedArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer

Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer
findBackReference, getEmptyValue, getNullValue, getObjectIdReader

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - _converter
```
protected final Converter<Object,T> _converter
```
    Converter that was used for creating _delegateDeserializer.
  - _delegateType
```
protected final JavaType _delegateType
```
    Fully resolved delegate type, with generic information if any available.
  - _delegateDeserializer
```
protected final JsonDeserializer<Object> _delegateDeserializer
```
    Underlying serializer for type T.
- Constructor Detail
  - StdDelegatingDeserializer
```
public StdDelegatingDeserializer(Converter<?,T> converter)
```
  - StdDelegatingDeserializer
```
public StdDelegatingDeserializer(Converter<Object,T> converter,
                                 JavaType delegateType,
                                 JsonDeserializer<?> delegateDeserializer)
```
  - StdDelegatingDeserializer
```
protected StdDelegatingDeserializer(StdDelegatingDeserializer<T> src)
```
    Since:
    
    2.5
- Method Detail
  - withDelegate
```
protected StdDelegatingDeserializer<T> withDelegate(Converter<Object,T> converter,
                                                    JavaType delegateType,
                                                    JsonDeserializer<?> delegateDeserializer)
```
    Method used for creating resolved contextual instances. Must be overridden when sub-classing.
  - unwrappingDeserializer
```
public JsonDeserializer<T> unwrappingDeserializer(NameTransformer unwrapper)
```
    Description copied from class: JsonDeserializer
    
    Method that will return deserializer instance that is able to handle "unwrapped" value instances If no unwrapped instance can be constructed, will simply return this object as-is.
    Default implementation just returns 'this' indicating that no unwrapped variant exists
    
    Overrides:
    
    unwrappingDeserializer in class JsonDeserializer<T>
  - replaceDelegatee
```
public JsonDeserializer<T> replaceDelegatee(JsonDeserializer<?> delegatee)
```
    Description copied from class: JsonDeserializer
    
    Method that can be called to try to replace deserializer this deserializer delegates calls to. If not supported (either this deserializer does not delegate anything; or it does not want any changes), should either throw UnsupportedOperationException (if operation does not make sense or is not allowed); or return this deserializer as is.
    
    Overrides:
    
    replaceDelegatee in class JsonDeserializer<T>
  - resolve
```
public void resolve(DeserializationContext ctxt)
             throws JsonMappingException
```
    Description copied from interface: ResolvableDeserializer
    
    Method called after deserializer instance has been constructed (and registered as necessary by provider objects), but before it has returned it to the caller. Called object can then resolve its dependencies to other types, including self-references (direct or indirect).
    
    Specified by:
    
    resolve in interface ResolvableDeserializer
    
    Parameters:
    
    ctxt - Context to use for accessing configuration, resolving secondary deserializers
    
    Throws:
    
    JsonMappingException
  - createContextual
```
public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
                                            BeanProperty property)
                                     throws JsonMappingException
```
    Description copied from interface: ContextualDeserializer
    
    Method called to see if a different (or differently configured) deserializer is needed to deserialize values of specified property. Note that instance that this method is called on is typically shared one and as a result method should NOT modify this instance but rather construct and return a new instance. This instance should only be returned as-is, in case it is already suitable for use.
    
    Specified by:
    
    createContextual in interface ContextualDeserializer
    
    Parameters:
    
    ctxt - Deserialization context to access configuration, additional deserializers that may be needed by this deserializer
    
    property - Method, field or constructor parameter that represents the property (and is used to assign deserialized value). Should be available; but there may be cases where caller cannot provide it and null is passed instead (in which case impls usually pass 'this' deserializer as is)
    
    Returns:
    
    Deserializer to use for deserializing values of specified property; may be this instance or a new instance.
    
    Throws:
    
    JsonMappingException
  - deserialize
```
public T deserialize(com.fasterxml.jackson.core.JsonParser p,
                     DeserializationContext ctxt)
              throws IOException
```
    Description copied from class: JsonDeserializer
    Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself.
    Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker or a FIELD_NAME.
    
    The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following.
```
      {
          "@class": "class name",
          ...
      }
  
```
    Jackson consumes the two tokens (the @class field name and its value) in order to learn the class and select the deserializer. Thus, the stream is pointing to the FIELD_NAME for the first field after the @class. Thus, if you want your method to work correctly both with and without polymorphism, you must begin your method with:
```
       if (p.currentToken() == JsonToken.START_OBJECT) {
         p.nextToken();
       }
  
```
    This results in the stream pointing to the field name, so that the two conditions align.
    Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call).
    Handling null values (JsonToken.VALUE_NULL)
    : Note that this method is never called for the JSON null literal to avoid every deserializer from having to handle null values. Instead, the JsonDeserializer.getNullValue(DeserializationContext) method is called to produce a null value. To influence null handling, custom deserializers should override JsonDeserializer.getNullValue(DeserializationContext) and usually also JsonDeserializer.getNullAccessPattern().
    Specified by:
    
    deserialize in class JsonDeserializer<T>
    
    Parameters:
    
    p - Parser used for reading JSON content
    
    ctxt - Context that can be used to access information about this deserialization activity.
    
    Returns:
    
    Deserialized value
    
    Throws:
    
    IOException
  - deserializeWithType
```
public Object deserializeWithType(com.fasterxml.jackson.core.JsonParser p,
                                  DeserializationContext ctxt,
                                  TypeDeserializer typeDeserializer)
                           throws IOException
```
    Description copied from class: StdDeserializer
    
    Base implementation that does not assume specific type inclusion mechanism. Sub-classes are expected to override this method if they are to handle type information.
    
    Overrides:
    
    deserializeWithType in class StdDeserializer<T>
    
    typeDeserializer - Deserializer to use for handling type information
    
    Throws:
    
    IOException
  - deserialize
```
public T deserialize(com.fasterxml.jackson.core.JsonParser p,
                     DeserializationContext ctxt,
                     Object intoValue)
              throws IOException
```
    Description copied from class: JsonDeserializer
    
    Alternate deserialization method (compared to the most commonly used, JsonDeserializer.deserialize(JsonParser, DeserializationContext)), which takes in initialized value instance, to be configured and/or populated by deserializer. Method is not necessarily used (or supported) by all types (it will not work for immutable types, for obvious reasons): most commonly it is used for Collections and Maps. It may be used both with "updating readers" (for POJOs) and when Collections and Maps use "getter as setter".
    Default implementation just throws UnsupportedOperationException, to indicate that types that do not explicitly add support do not necessarily support update-existing-value operation (esp. immutable types)
    
    Overrides:
    
    deserialize in class JsonDeserializer<T>
    
    Throws:
    
    IOException
  - deserializeWithType
```
public Object deserializeWithType(com.fasterxml.jackson.core.JsonParser p,
                                  DeserializationContext ctxt,
                                  TypeDeserializer typeDeserializer,
                                  T intoValue)
                           throws IOException,
                                  com.fasterxml.jackson.core.JacksonException
```
    Description copied from class: JsonDeserializer
    
    Method similar to JsonDeserializer.deserializeWithType(JsonParser,DeserializationContext,TypeDeserializer) but called when merging value. Considered "bad merge" by default implementation, but if MapperFeature.IGNORE_MERGE_FOR_UNMERGEABLE is enabled will simple delegate to JsonDeserializer.deserializeWithType(JsonParser, DeserializationContext, TypeDeserializer).
    
    Overrides:
    
    deserializeWithType in class JsonDeserializer<T>
    
    Throws:
    
    IOException
    
    com.fasterxml.jackson.core.JacksonException
  - _handleIncompatibleUpdateValue
```
protected Object _handleIncompatibleUpdateValue(com.fasterxml.jackson.core.JsonParser p,
                                                DeserializationContext ctxt,
                                                Object intoValue)
                                         throws IOException
```
    Overridable handler method called when deserialize(JsonParser, DeserializationContext, Object) has been called with a value that is not compatible with delegate value. Since no conversion are expected for such "updateValue" case, this is normally not an operation that can be permitted, and the default behavior is to throw exception. Sub-classes may choose to try alternative approach if they have more information on exact usage and constraints.
    
    Throws:
    
    IOException
    
    Since:
    
    2.6
  - handledType
```
public Class<?> handledType()
```
    Description copied from class: JsonDeserializer
    
    Method for accessing concrete physical type of values this deserializer produces. Note that this information is not guaranteed to be exact -- it may be a more generic (super-type) -- but it should not be incorrect (return a non-related type).
    Default implementation will return null, which means almost same same as returning Object.class would; that is, that nothing is known about handled type.
    
    Overrides:
    
    handledType in class StdDeserializer<T>
    
    Returns:
    
    Physical type of values this deserializer produces, if known; null if not
  - logicalType
```
public LogicalType logicalType()
```
    Description copied from class: JsonDeserializer
    
    Method for accessing logical type of values this deserializer produces. Typically used for further configuring handling of values, for example, to find which coercions are legal.
    
    Overrides:
    
    logicalType in class JsonDeserializer<T>
    
    Returns:
    
    Logical type of values this deserializer produces, if known; null if not
  - isCachable
```
public boolean isCachable()
```
    Description copied from class: JsonDeserializer
    
    Method called to see if deserializer instance is cachable and usable for other properties of same type (type for which instance was created).
    Note that cached instances are still resolved on per-property basis, if instance implements ResolvableDeserializer: cached instance is just as the base. This means that in most cases it is safe to cache instances; however, it only makes sense to cache instances if instantiation is expensive, or if instances are heavy-weight.
    Default implementation returns false, to indicate that no caching is done.
    
    Overrides:
    
    isCachable in class JsonDeserializer<T>
  - getDelegatee
```
public JsonDeserializer<?> getDelegatee()
```
    Description copied from class: JsonDeserializer
    
    Accessor that can be used to determine if this deserializer uses another deserializer for actual deserialization, by delegating calls. If so, will return immediate delegate (which itself may delegate to further deserializers); otherwise will return null.
    
    Overrides:
    
    getDelegatee in class JsonDeserializer<T>
    
    Returns:
    
    Deserializer this deserializer delegates calls to, if null; null otherwise.
  - getKnownPropertyNames
```
public Collection<Object> getKnownPropertyNames()
```
    Description copied from class: JsonDeserializer
    
    Method that will either return null to indicate that type being deserializers has no concept of properties; or a collection of identifiers for which toString will give external property name. This is only to be used for error reporting and diagnostics purposes (most commonly, to accompany "unknown property" exception).
    
    Overrides:
    
    getKnownPropertyNames in class JsonDeserializer<T>
  - getNullValue
```
public T getNullValue(DeserializationContext ctxt)
               throws JsonMappingException
```
    Description copied from class: JsonDeserializer
    
    Method that can be called to determine value to be used for representing null values (values deserialized when JSON token is JsonToken.VALUE_NULL). Usually this is simply Java null, but for some types (especially primitives) it may be necessary to use non-null values.
    This method may be called once, or multiple times, depending on what JsonDeserializer.getNullAccessPattern() returns.
    Default implementation simply returns null.
    
    Specified by:
    
    getNullValue in interface NullValueProvider
    
    Overrides:
    
    getNullValue in class JsonDeserializer<T>
    
    Throws:
    
    JsonMappingException
  - getNullAccessPattern
```
public AccessPattern getNullAccessPattern()
```
    Description copied from class: JsonDeserializer
    
    This method may be called in conjunction with calls to JsonDeserializer.getNullValue(DeserializationContext), to check whether it needs to be called just once (static values), or each time empty value is needed.
    Default implementation indicates that the "null value" to use for input null does not vary across uses so that JsonDeserializer.getNullValue(DeserializationContext) need not be called more than once per deserializer instance. This information may be used as optimization.
    
    Specified by:
    
    getNullAccessPattern in interface NullValueProvider
    
    Overrides:
    
    getNullAccessPattern in class JsonDeserializer<T>
  - getAbsentValue
```
public Object getAbsentValue(DeserializationContext ctxt)
                      throws JsonMappingException
```
    Description copied from class: JsonDeserializer
    
    Method called to determine placeholder value to be used for cases where no value was obtained from input but we must pass a value nonetheless: the common case is that of Creator methods requiring passing a value for every parameter. Usually this is same as JsonDeserializer.getNullValue(com.fasterxml.jackson.databind.DeserializationContext) (which in turn is usually simply Java null), but it can be overridden for specific types: most notable scalar types must use "default" values.
    This method needs to be called every time a determination is made.
    Default implementation simply calls JsonDeserializer.getNullValue(com.fasterxml.jackson.databind.DeserializationContext) and returns value.
    
    Specified by:
    
    getAbsentValue in interface NullValueProvider
    
    Overrides:
    
    getAbsentValue in class JsonDeserializer<T>
    
    Throws:
    
    JsonMappingException
  - getEmptyValue
```
public Object getEmptyValue(DeserializationContext ctxt)
                     throws JsonMappingException
```
    Description copied from class: JsonDeserializer
    
    Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings). Usually this is same as JsonDeserializer.getNullValue(com.fasterxml.jackson.databind.DeserializationContext) (which in turn is usually simply Java null), but it can be overridden for specific types. Or, if type should never be converted from empty String, method can also throw an exception.
    This method may be called once, or multiple times, depending on what JsonDeserializer.getEmptyAccessPattern() returns.
    Default implementation simply calls JsonDeserializer.getNullValue(com.fasterxml.jackson.databind.DeserializationContext) and returns value.
    
    Overrides:
    
    getEmptyValue in class JsonDeserializer<T>
    
    Throws:
    
    JsonMappingException
  - getEmptyAccessPattern
```
public AccessPattern getEmptyAccessPattern()
```
    Description copied from class: JsonDeserializer
    
    This method may be called in conjunction with calls to JsonDeserializer.getEmptyValue(DeserializationContext), to check whether it needs to be called just once (static values), or each time empty value is needed.
    
    Overrides:
    
    getEmptyAccessPattern in class JsonDeserializer<T>
  - supportsUpdate
```
public Boolean supportsUpdate(DeserializationConfig config)
```
    Description copied from class: JsonDeserializer
    
    Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not. Return value should either be Boolean.FALSE if update is not supported at all (immutable values); Boolean.TRUE if update should usually work (regular POJOs, for example), or null if this is either not known, or may sometimes work.
    Information gathered is typically used to either prevent merging update for property (either by skipping, if based on global defaults; or by exception during deserializer construction if explicit attempt made) if Boolean.FALSE returned, or inclusion if Boolean.TRUE is specified. If "unknown" case (null returned) behavior is to exclude property if global defaults used; or to allow if explicit per-type or property merging is defined.
    Default implementation returns null to allow explicit per-type or per-property attempts.
    
    Overrides:
    
    supportsUpdate in class JsonDeserializer<T>
  - convertValue
```
protected T convertValue(Object delegateValue)
```
    Method called to convert from "delegate value" (which was deserialized from JSON using standard Jackson deserializer for delegate type) into desired target type.
    The default implementation uses configured Converter to do conversion.
    
    Parameters:
    
    delegateValue -
    
    Returns:
    
    Result of conversion
  - _convertIfNonNull
```
protected T _convertIfNonNull(Object delegateValue)
```

Class StdDelegatingDeserializer<T>

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

Field Summary

Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

Constructor Summary

Method Summary

Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer

Methods inherited from class java.lang.Object

Field Detail

_converter

_delegateType

_delegateDeserializer

Constructor Detail

StdDelegatingDeserializer

StdDelegatingDeserializer

StdDelegatingDeserializer

Method Detail

withDelegate

unwrappingDeserializer

replaceDelegatee

resolve

createContextual

deserialize

deserializeWithType

deserialize

deserializeWithType

_handleIncompatibleUpdateValue

handledType

logicalType

isCachable

getDelegatee

getKnownPropertyNames

getNullValue

getNullAccessPattern

getAbsentValue

getEmptyValue

getEmptyAccessPattern

supportsUpdate

convertValue

_convertIfNonNull