Jackson 2.18.2 · com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer

Modifier and Type	Class and Description
pack-priv static class	BaseNodeDeserializer.ContainerStack Optimized variant similar in functionality to (a subset of) `java.util.ArrayDeque`; used to hold enclosing Array/Object nodes during recursion-as-iteration.

Field Summary

Modifier and Type	Field and Description
protected final boolean	_mergeArrays
protected final boolean	_mergeObjects
protected final Boolean	_supportsUpdates

Inherited from com.fasterxml.jackson.databind.deser.std.StdDeserializer:: _valueClass _valueType F_MASK_ACCEPT_ARRAYS F_MASK_INT_COERCIONS

Constructor Summary

Access	Constructor and Description
public	BaseNodeDeserializer(Class<T> vc, Boolean supportsUpdates)
protected	BaseNodeDeserializer(BaseNodeDeserializer<?> base, boolean mergeArrays, boolean mergeObjects)

Method Summary

Modifier and Type	Method and Description
protected abstract JsonDeserializer<?>	_createWithMerge(boolean mergeArrays, boolean mergeObjects)
protected final JsonNode	_deserializeAnyScalar(JsonParser p, DeserializationContext ctxt)
protected final ContainerNode<?>	_deserializeContainerNoRecursion(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, BaseNodeDeserializer.ContainerStack stack, final ContainerNode<?> root)
protected final ObjectNode	_deserializeObjectAtName(JsonParser p, DeserializationContext ctxt, final JsonNodeFactory nodeFactory, final BaseNodeDeserializer.ContainerStack stack) Alternate deserialization method used when parser already points to first FIELD_NAME and not START_OBJECT.
protected final JsonNode	_deserializeRareScalar(JsonParser p, DeserializationContext ctxt)
protected final JsonNode	_fromBigDecimal(DeserializationContext ctxt, JsonNodeFactory nodeFactory, BigDecimal bigDec)
protected final JsonNode	_fromEmbedded(JsonParser p, DeserializationContext ctxt)
protected final JsonNode	_fromFloat(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected final JsonNode	_fromInt(JsonParser p, int coercionFeatures, JsonNodeFactory nodeFactory)
protected final JsonNode	_fromInt(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected void	_handleDuplicateField(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, String Name of the field for which duplicate value was found fieldName, ObjectNode Object node that contains values objectNode, JsonNode Value that existed for the object node before newValue was added oldValue, JsonNode Newly added value just added to the object node newValue) Method called when there is a duplicate value for a field.
private static boolean	_shouldMerge(Boolean specificMerge, Boolean generalMerge)
public JsonDeserializer<?>	createContextual(DeserializationContext Deserialization context to access configuration, additional deserializers that may be needed by this deserializer ctxt, BeanProperty 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) property) Implements com.fasterxml.jackson.databind.deser.ContextualDeserializer.createContextual. Method called to see if a different (or differently configured) deserializer is needed to deserialize values of specified property.
public Object	deserializeWithType(JsonParser p, DeserializationContext ctxt, TypeDeserializer Deserializer to use for handling type information typeDeserializer) Overrides com.fasterxml.jackson.databind.deser.std.StdDeserializer.deserializeWithType. Base implementation that does not assume specific type inclusion mechanism.
public boolean	isCachable() Overrides com.fasterxml.jackson.databind.JsonDeserializer.isCachable. Method called to see if deserializer instance is cachable and usable for other properties of same type (type for which instance was created).
public LogicalType	logicalType() Overrides com.fasterxml.jackson.databind.JsonDeserializer.logicalType. Method for accessing logical type of values this deserializer produces.
public Boolean	supportsUpdate(DeserializationConfig config) Overrides com.fasterxml.jackson.databind.JsonDeserializer.supportsUpdate. Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not.
protected final JsonNode	updateObject(JsonParser p, DeserializationContext ctxt, final ObjectNode node, final BaseNodeDeserializer.ContainerStack stack) Alternate deserialization method that is to update existing `ObjectNode` if possible.

Inherited from 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 handledType handleMissingEndArrayForSingle handleNestedArrayForSingle handleUnknownProperty isDefaultDeserializer isDefaultKeyDeserializer

Field Detail

_mergeArrays	back to summary
protected final boolean _mergeArrays

_mergeObjects	back to summary
protected final boolean _mergeObjects

_supportsUpdates	back to summary
protected final Boolean _supportsUpdates

Constructor Detail

BaseNodeDeserializer	back to summary
public BaseNodeDeserializer(Class<T> vc, Boolean supportsUpdates)

BaseNodeDeserializer	back to summary
protected BaseNodeDeserializer(BaseNodeDeserializer<?> base, boolean mergeArrays, boolean mergeObjects)

Method Detail

_createWithMerge	back to summary
protected abstract JsonDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects)

_deserializeAnyScalar	back to summary
protected final JsonNode _deserializeAnyScalar(JsonParser p, DeserializationContext ctxt) throws IOException

_deserializeContainerNoRecursion	back to summary
protected final ContainerNode<?> _deserializeContainerNoRecursion(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, BaseNodeDeserializer.ContainerStack stack, final ContainerNode<?> root) throws IOException

_deserializeObjectAtName	back to summary
protected final ObjectNode _deserializeObjectAtName(JsonParser p, DeserializationContext ctxt, final JsonNodeFactory nodeFactory, final BaseNodeDeserializer.ContainerStack stack) throws IOException Alternate deserialization method used when parser already points to first FIELD_NAME and not START_OBJECT.

_deserializeRareScalar	back to summary
protected final JsonNode _deserializeRareScalar(JsonParser p, DeserializationContext ctxt) throws IOException

_fromBigDecimal	back to summary
protected final JsonNode _fromBigDecimal(DeserializationContext ctxt, JsonNodeFactory nodeFactory, BigDecimal bigDec)

_fromEmbedded	back to summary
protected final JsonNode _fromEmbedded(JsonParser p, DeserializationContext ctxt) throws IOException

_fromFloat	back to summary
protected final JsonNode _fromFloat(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws IOException

_fromInt	back to summary
protected final JsonNode _fromInt(JsonParser p, int coercionFeatures, JsonNodeFactory nodeFactory) throws IOException

_fromInt	back to summary
protected final JsonNode _fromInt(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws IOException

_handleDuplicateField	back to summary
protected void _handleDuplicateField(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, String fieldName, ObjectNode objectNode, JsonNode oldValue, JsonNode newValue) throws IOException Method called when there is a duplicate value for a field. By default we don't care, and the last value is used. Can be overridden to provide alternate handling, such as throwing an exception, or choosing different strategy for combining values or choosing which one to keep. Parameters fieldName:String Name of the field for which duplicate value was found objectNode:ObjectNode Object node that contains values oldValue:JsonNode Value that existed for the object node before newValue was added newValue:JsonNode Newly added value just added to the object node

_handleDuplicateField

back to summary

protected void _handleDuplicateField(JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, String fieldName, ObjectNode objectNode, JsonNode oldValue, JsonNode newValue) throws IOException

Method called when there is a duplicate value for a field. By default we don't care, and the last value is used. Can be overridden to provide alternate handling, such as throwing an exception, or choosing different strategy for combining values or choosing which one to keep.

Parameters

fieldName:String: Name of the field for which duplicate value was found
objectNode:ObjectNode: Object node that contains values
oldValue:JsonNode: Value that existed for the object node before newValue was added
newValue:JsonNode: Newly added value just added to the object node

_shouldMerge	back to summary
private static boolean _shouldMerge(Boolean specificMerge, Boolean generalMerge)

createContextual	back to summary
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException Implements com.fasterxml.jackson.databind.deser.ContextualDeserializer.createContextual. Doc from com.fasterxml.jackson.databind.deser.ContextualDeserializer.createContextual. 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. Parameters ctxt:DeserializationContext Deserialization context to access configuration, additional deserializers that may be needed by this deserializer property:BeanProperty 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:JsonDeserializer<?> Deserializer to use for deserializing values of specified property; may be this instance or a new instance. Annotations @Override

createContextual

back to summary

public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException

Implements com.fasterxml.jackson.databind.deser.ContextualDeserializer.createContextual.

Doc from com.fasterxml.jackson.databind.deser.ContextualDeserializer.createContextual.

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.

Parameters

ctxt:DeserializationContext: Deserialization context to access configuration, additional deserializers that may be needed by this deserializer
property:BeanProperty: 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:JsonDeserializer<?>

Deserializer to use for deserializing values of specified property; may be this instance or a new instance.

Annotations

@Override

deserializeWithType	back to summary
public Object deserializeWithType(JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer) throws IOException Overrides com.fasterxml.jackson.databind.deser.std.StdDeserializer.deserializeWithType. Doc from com.fasterxml.jackson.databind.deser.std.StdDeserializer.deserializeWithType. 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. Parameters typeDeserializer:TypeDeserializer Doc from com.fasterxml.jackson.databind.JsonDeserializer.deserializeWithType. Deserializer to use for handling type information Annotations @Override

deserializeWithType

back to summary

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

Overrides com.fasterxml.jackson.databind.deser.std.StdDeserializer.deserializeWithType.

Doc from com.fasterxml.jackson.databind.deser.std.StdDeserializer.deserializeWithType.

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.

Parameters

typeDeserializer:TypeDeserializer

Doc from com.fasterxml.jackson.databind.JsonDeserializer.deserializeWithType.

Deserializer to use for handling type information

Annotations

@Override

isCachable back to summary

isCachable	back to summary
public boolean isCachable() Overrides com.fasterxml.jackson.databind.JsonDeserializer.isCachable. Doc from com.fasterxml.jackson.databind.JsonDeserializer.isCachable. 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 `com.fasterxml.jackson.databind.deser.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. Annotations @Override

public boolean isCachable()

Overrides com.fasterxml.jackson.databind.JsonDeserializer.isCachable.

Doc from com.fasterxml.jackson.databind.JsonDeserializer.isCachable.

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 com.fasterxml.jackson.databind.deser.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.

Annotations

@Override

logicalType back to summary

logicalType	back to summary
public LogicalType logicalType() Overrides com.fasterxml.jackson.databind.JsonDeserializer.logicalType. Doc from com.fasterxml.jackson.databind.JsonDeserializer.logicalType. 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. Returns:LogicalType Logical type of values this deserializer produces, if known; `null` if not Annotations @Override

public LogicalType logicalType()

Overrides com.fasterxml.jackson.databind.JsonDeserializer.logicalType.

Doc from com.fasterxml.jackson.databind.JsonDeserializer.logicalType.

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.

Returns:LogicalType

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

Annotations

@Override

supportsUpdate back to summary

supportsUpdate	back to summary
public Boolean supportsUpdate(DeserializationConfig config) Overrides com.fasterxml.jackson.databind.JsonDeserializer.supportsUpdate. Doc from com.fasterxml.jackson.databind.JsonDeserializer.supportsUpdate. 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. Annotations @Override

public Boolean supportsUpdate(DeserializationConfig config)

Overrides com.fasterxml.jackson.databind.JsonDeserializer.supportsUpdate.

Doc from com.fasterxml.jackson.databind.JsonDeserializer.supportsUpdate.

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.

Annotations

@Override

updateObject back to summary

updateObject	back to summary
protected final JsonNode updateObject(JsonParser p, DeserializationContext ctxt, final ObjectNode node, final BaseNodeDeserializer.ContainerStack stack) throws IOException Alternate deserialization method that is to update existing `ObjectNode` if possible. Since 2.9

protected final JsonNode updateObject(JsonParser p, DeserializationContext ctxt, final ObjectNode node, final BaseNodeDeserializer.ContainerStack stack) throws IOException

Alternate deserialization method that is to update existing ObjectNode if possible.

Since: 2.9

Field Summary

Modifier and Type	Field and Description
private int	_end
private ContainerNode<T extends ContainerNode<T>>[]	_stack
private int	_top

Constructor Summary

Access	Constructor and Description
public	ContainerStack()

Method Summary

Modifier and Type	Method and Description
public ContainerNode<T extends ContainerNode<T>>	popOrNull()
public void	push(ContainerNode<T extends ContainerNode<T>> node)
public int	size()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

_end	back to summary
private int _end

_stack	back to summary
private ContainerNode<T extends ContainerNode<T>>[] _stack

_top	back to summary
private int _top

Constructor Detail

ContainerStack	back to summary
public ContainerStack()

Method Detail

popOrNull	back to summary
public ContainerNode<T extends ContainerNode<T>> popOrNull()

push	back to summary
public void push(ContainerNode<T extends ContainerNode<T>> node)

size	back to summary
public int size()

pack-priv abstract Class BaseNodeDeserializer<T extends JsonNode>

Nested and Inner Type Summary

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pack-priv final Class BaseNodeDeserializer.ContainerStack

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