Class BaseNodeDeserializer<T extends JsonNode>
- java.lang.Object
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- com.fasterxml.jackson.databind.JsonDeserializer<T>
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- com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>
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- com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer<T>
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- All Implemented Interfaces:
NullValueProvider
,java.io.Serializable
- Direct Known Subclasses:
JsonNodeDeserializer
,JsonNodeDeserializer.ArrayDeserializer
,JsonNodeDeserializer.ObjectDeserializer
abstract class BaseNodeDeserializer<T extends JsonNode> extends StdDeserializer<T>
Base class for all actualJsonNode
deserializer implementations
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Nested Class Summary
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Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer
JsonDeserializer.None
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Field Summary
Fields Modifier and Type Field Description protected java.lang.Boolean
_supportsUpdates
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Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer
_valueClass, _valueType, F_MASK_ACCEPT_ARRAYS, F_MASK_INT_COERCIONS
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Constructor Summary
Constructors Constructor Description BaseNodeDeserializer(java.lang.Class<T> vc, java.lang.Boolean supportsUpdates)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected JsonNode
_fromEmbedded(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected JsonNode
_fromFloat(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected JsonNode
_fromInt(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected void
_handleDuplicateField(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, java.lang.String fieldName, ObjectNode objectNode, JsonNode oldValue, JsonNode newValue)
Method called when there is a duplicate value for a field.protected JsonNode
deserializeAny(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected ArrayNode
deserializeArray(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
protected ObjectNode
deserializeObject(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
Method called to deserialize Object node instance when there is no existing node to modify.protected ObjectNode
deserializeObjectAtName(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory)
Alternate deserialization method used when parser already points to first FIELD_NAME and not START_OBJECT.java.lang.Object
deserializeWithType(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer)
Base implementation that does not assume specific type inclusion mechanism.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).java.lang.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 JsonNode
updateArray(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, ArrayNode node)
Alternate deserialization method that is to update existingObjectNode
if possible.protected JsonNode
updateObject(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, ObjectNode node)
Alternate deserialization method that is to update existingObjectNode
if possible.-
Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer
_byteOverflow, _coercedTypeDesc, _coerceEmptyString, _coerceIntegral, _coerceNullToken, _coerceTextualNull, _deserializeFromArray, _deserializeFromEmpty, _deserializeWrappedValue, _failDoubleToIntCoercion, _findNullProvider, _hasTextualNull, _intOverflow, _isEmptyOrTextualNull, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _neitherNull, _nonNullNumber, _parseBooleanFromInt, _parseBooleanPrimitive, _parseBooleanPrimitive, _parseBytePrimitive, _parseDate, _parseDate, _parseDateFromArray, _parseDoublePrimitive, _parseDoublePrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseIntPrimitive, _parseIntPrimitive, _parseLongPrimitive, _parseLongPrimitive, _parseShortPrimitive, _parseString, _reportFailedNullCoerce, _shortOverflow, _verifyEndArrayForSingle, _verifyNullForPrimitive, _verifyNullForPrimitiveCoercion, _verifyNullForScalarCoercion, _verifyNumberForScalarCoercion, _verifyStringForScalarCoercion, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueClass, getValueType, getValueType, handledType, handleMissingEndArrayForSingle, handleNestedArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer, parseDouble
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Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer
deserialize, deserialize, deserializeWithType, findBackReference, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, replaceDelegatee, unwrappingDeserializer
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Constructor Detail
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BaseNodeDeserializer
public BaseNodeDeserializer(java.lang.Class<T> vc, java.lang.Boolean supportsUpdates)
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Method Detail
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deserializeWithType
public java.lang.Object deserializeWithType(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer) throws java.io.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 classStdDeserializer<T extends JsonNode>
typeDeserializer
- Deserializer to use for handling type information- Throws:
java.io.IOException
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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 classJsonDeserializer<T extends JsonNode>
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supportsUpdate
public java.lang.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 beBoolean.FALSE
if update is not supported at all (immutable values);Boolean.TRUE
if update should usually work (regular POJOs, for example), ornull
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 deserialization construction if explicit attempt made) if
Boolean.FALSE
returned, or inclusion ifBoolean.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 classJsonDeserializer<T extends JsonNode>
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_handleDuplicateField
protected void _handleDuplicateField(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory, java.lang.String fieldName, ObjectNode objectNode, JsonNode oldValue, JsonNode newValue) throws com.fasterxml.jackson.core.JsonProcessingException
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
- Name of the field for which duplicate value was foundobjectNode
- Object node that contains valuesoldValue
- Value that existed for the object node before newValue was addednewValue
- Newly added value just added to the object node- Throws:
com.fasterxml.jackson.core.JsonProcessingException
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deserializeObject
protected final ObjectNode deserializeObject(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
Method called to deserialize Object node instance when there is no existing node to modify.- Throws:
java.io.IOException
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deserializeObjectAtName
protected final ObjectNode deserializeObjectAtName(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
Alternate deserialization method used when parser already points to first FIELD_NAME and not START_OBJECT.- Throws:
java.io.IOException
- Since:
- 2.9
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updateObject
protected final JsonNode updateObject(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, ObjectNode node) throws java.io.IOException
Alternate deserialization method that is to update existingObjectNode
if possible.- Throws:
java.io.IOException
- Since:
- 2.9
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deserializeArray
protected final ArrayNode deserializeArray(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
- Throws:
java.io.IOException
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updateArray
protected final JsonNode updateArray(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, ArrayNode node) throws java.io.IOException
Alternate deserialization method that is to update existingObjectNode
if possible.- Throws:
java.io.IOException
- Since:
- 2.9
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deserializeAny
protected final JsonNode deserializeAny(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
- Throws:
java.io.IOException
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_fromInt
protected final JsonNode _fromInt(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
- Throws:
java.io.IOException
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_fromFloat
protected final JsonNode _fromFloat(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
- Throws:
java.io.IOException
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_fromEmbedded
protected final JsonNode _fromEmbedded(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, JsonNodeFactory nodeFactory) throws java.io.IOException
- Throws:
java.io.IOException
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