Module tools.jackson.databind

Package tools.jackson.databind.ext.jdk8

Class BaseScalarOptionalDeserializer<T>

java.lang.Object

tools.jackson.databind.ValueDeserializer<T>

tools.jackson.databind.deser.std.StdDeserializer<T>

tools.jackson.databind.deser.std.StdScalarDeserializer<T>

tools.jackson.databind.ext.jdk8.BaseScalarOptionalDeserializer<T>

All Implemented Interfaces:

NullValueProvider, ValueInstantiator.Gettable

Direct Known Subclasses:

OptionalDoubleDeserializer, OptionalIntDeserializer, OptionalLongDeserializer

public abstract class BaseScalarOptionalDeserializer<T>
extends StdScalarDeserializer<T>

Nested Class Summary

Nested classes/interfaces inherited from class tools.jackson.databind.ValueDeserializer

ValueDeserializer.None

Field Summary

Fields

Modifier and Type	Field	Description
protected final T	_empty

Fields inherited from class tools.jackson.databind.deser.std.StdDeserializer

_valueClass, _valueType, F_MASK_INT_COERCIONS

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BaseScalarOptionalDeserializer(Class<T> cls, T empty)

Method Summary

Modifier and Type	Method	Description
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).

Methods inherited from class tools.jackson.databind.deser.std.StdScalarDeserializer

deserialize, deserializeWithType, getEmptyAccessPattern, getNullAccessPattern, logicalType, supportsUpdate

Methods inherited from class tools.jackson.databind.deser.std.StdDeserializer

_byteOverflow, _checkBooleanToStringCoercion, _checkCoercionFail, _checkDoubleSpecialValue, _checkFloatSpecialValue, _checkFloatToIntCoercion, _checkFloatToStringCoercion, _checkFromStringCoercion, _checkFromStringCoercion, _checkIntToFloatCoercion, _checkIntToStringCoercion, _checkTextualNull, _checkToStringCoercion, _coerceBooleanFromInt, _coercedTypeDesc, _coercedTypeDesc, _coerceIntegral, _deserializeFromArray, _deserializeFromEmptyString, _deserializeFromString, _deserializeWrappedValue, _findCoercionFromBlankString, _findCoercionFromEmptyArray, _findCoercionFromEmptyString, _findNullProvider, _hasTextualNull, _intOverflow, _isBlank, _isFalse, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _isTrue, _neitherNull, _nonNullNumber, _parseBoolean, _parseBooleanPrimitive, _parseBytePrimitive, _parseDate, _parseDate, _parseDateFromArray, _parseDouble, _parseDoublePrimitive, _parseDoublePrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseInteger, _parseInteger, _parseIntPrimitive, _parseIntPrimitive, _parseLong, _parseLong, _parseLongPrimitive, _parseLongPrimitive, _parseShortPrimitive, _parseString, _reportFailedNullCoerce, _shortOverflow, _verifyEndArrayForSingle, _verifyNullForPrimitive, _verifyNullForPrimitiveCoercion, _wrapIOFailure, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueInstantiator, getValueType, getValueType, handledType, handleMissingEndArrayForSingle, handleNestedArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer

Methods inherited from class tools.jackson.databind.ValueDeserializer

createContextual, deserialize, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyValue, getKnownPropertyNames, getObjectIdReader, isCachable, replaceDelegatee, resolve, unwrappingDeserializer

Methods inherited from class java.lang.Object

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

Field Details

_empty

protected final T _empty

Constructor Details

BaseScalarOptionalDeserializer

protected BaseScalarOptionalDeserializer(Class<T> cls,
 T empty)

Method Details

getNullValue

public T getNullValue(DeserializationContext ctxt)

Description copied from class: ValueDeserializer

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 ValueDeserializer.getNullAccessPattern() returns.

Default implementation simply returns null.

Specified by:

getNullValue in interface NullValueProvider

Overrides:

getNullValue in class ValueDeserializer<T>