Module tools.jackson.databind

Package tools.jackson.databind.deser.jdk

Class PrimitiveArrayDeserializers<T>

java.lang.Object

tools.jackson.databind.ValueDeserializer<T>

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

tools.jackson.databind.deser.jdk.PrimitiveArrayDeserializers<T>

All Implemented Interfaces:

NullValueProvider, ValueInstantiator.Gettable

public abstract class PrimitiveArrayDeserializers<T>
extends StdDeserializer<T>

Container for deserializers used for instantiating "primitive arrays", arrays that contain non-object java primitive types.

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 NullValueProvider	_nuller	Flag that indicates need for special handling; either failing (throw exception) or skipping
protected final Boolean	_unwrapSingle	Specific override for this instance (from proper, or global per-type overrides) to indicate whether single value may be taken to mean an unwrapped one-element array or not.

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

_valueClass, _valueType, F_MASK_INT_COERCIONS

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PrimitiveArrayDeserializers(Class<T> cls)
protected	PrimitiveArrayDeserializers(PrimitiveArrayDeserializers<?> base, NullValueProvider nuller, Boolean unwrapSingle)

Method Summary

Modifier and Type	Method	Description
protected abstract T	_concat(T oldValue, T newValue)
protected abstract T	_constructEmpty()
protected void	_failOnNull(DeserializationContext ctxt)
ValueDeserializer<?>	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(JsonParser p, DeserializationContext ctxt, T existing)	Alternate deserialization method (compared to the most commonly used, ValueDeserializer.deserialize(JsonParser, DeserializationContext)), which takes in initialized value instance, to be configured and/or populated by deserializer.
Object	deserializeWithType(JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer)	Base implementation that does not assume specific type inclusion mechanism.
static ValueDeserializer<?>	forType(Class<?> rawType)
AccessPattern	getEmptyAccessPattern()	This method may be called in conjunction with calls to ValueDeserializer.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).
protected T	handleNonArray(JsonParser p, DeserializationContext ctxt)
protected abstract T	handleSingleElementUnwrapped(JsonParser p, DeserializationContext ctxt)
LogicalType	logicalType()	Method for accessing logical type of values this deserializer produces.
Boolean	supportsUpdate(DeserializationConfig config)	Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not.
protected abstract PrimitiveArrayDeserializers<?>	withResolved(NullValueProvider nuller, Boolean unwrapSingle)

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

deserialize, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getKnownPropertyNames, getNullAccessPattern, getNullValue, 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

_unwrapSingle

protected final Boolean _unwrapSingle

Specific override for this instance (from proper, or global per-type overrides) to indicate whether single value may be taken to mean an unwrapped one-element array or not. If null, left to global defaults.

_nuller

protected final NullValueProvider _nuller

Flag that indicates need for special handling; either failing (throw exception) or skipping

Constructor Details

PrimitiveArrayDeserializers

protected PrimitiveArrayDeserializers(Class<T> cls)

PrimitiveArrayDeserializers

protected PrimitiveArrayDeserializers(PrimitiveArrayDeserializers<?> base,
 NullValueProvider nuller,
 Boolean unwrapSingle)

Method Details

forType

public static ValueDeserializer<?> forType(Class<?> rawType)

createContextual

public ValueDeserializer<?> createContextual(DeserializationContext ctxt,
 BeanProperty property)

Description copied from class: ValueDeserializer

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.

Overrides:

createContextual in class ValueDeserializer<T>

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.

_concat

protected abstract T _concat(T oldValue,
 T newValue)

Since:

2.9

handleSingleElementUnwrapped

protected abstract T handleSingleElementUnwrapped(JsonParser p,
 DeserializationContext ctxt)
                                           throws JacksonException

Throws:

JacksonException

withResolved

protected abstract PrimitiveArrayDeserializers<?> withResolved(NullValueProvider nuller,
 Boolean unwrapSingle)

Since:

2.9

_constructEmpty

protected abstract T _constructEmpty()

logicalType

public LogicalType logicalType()

Description copied from class: ValueDeserializer

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 ValueDeserializer<T>

Returns:

Logical type of values this deserializer produces, if known; null if not

supportsUpdate

public Boolean supportsUpdate(DeserializationConfig config)

Description copied from class: ValueDeserializer

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 ValueDeserializer<T>

getEmptyAccessPattern

public AccessPattern getEmptyAccessPattern()

Description copied from class: ValueDeserializer

This method may be called in conjunction with calls to ValueDeserializer.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 ValueDeserializer<T>

getEmptyValue

public Object getEmptyValue(DeserializationContext ctxt)

Description copied from class: ValueDeserializer

Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings). Usually this is same as ValueDeserializer.getNullValue(tools.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 ValueDeserializer.getEmptyAccessPattern() returns.

Default implementation simply calls ValueDeserializer.getNullValue(tools.jackson.databind.DeserializationContext) and returns value.

Overrides:

getEmptyValue in class ValueDeserializer<T>

deserializeWithType

public Object deserializeWithType(JsonParser p,
 DeserializationContext ctxt,
 TypeDeserializer typeDeserializer)
                           throws JacksonException

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:

JacksonException

deserialize

public T deserialize(JsonParser p,
 DeserializationContext ctxt,
 T existing)
              throws JacksonException

Description copied from class: ValueDeserializer

Alternate deserialization method (compared to the most commonly used, ValueDeserializer.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 ValueDeserializer<T>

Throws:

JacksonException

handleNonArray

protected T handleNonArray(JsonParser p,
 DeserializationContext ctxt)
                    throws JacksonException

Throws:

JacksonException

_failOnNull

protected void _failOnNull(DeserializationContext ctxt)
                    throws JacksonException

Throws:

JacksonException