Class JsonNodeDeserializer.ArrayDeserializer
- 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<ArrayNode>
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- com.fasterxml.jackson.databind.deser.std.JsonNodeDeserializer.ArrayDeserializer
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- All Implemented Interfaces:
NullValueProvider
,java.io.Serializable
- Enclosing class:
- JsonNodeDeserializer
static final class JsonNodeDeserializer.ArrayDeserializer extends BaseNodeDeserializer<ArrayNode>
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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 static JsonNodeDeserializer.ArrayDeserializer
_instance
private static long
serialVersionUID
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Fields inherited from class com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer
_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 Modifier Constructor Description protected
ArrayDeserializer()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description ArrayNode
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.ArrayNode
deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, ArrayNode node)
Variant needed to support both root-level `updateValue()` and merging.static JsonNodeDeserializer.ArrayDeserializer
getInstance()
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Methods inherited from class com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer
_fromEmbedded, _fromFloat, _fromInt, _handleDuplicateField, deserializeAny, deserializeArray, deserializeObject, deserializeObjectAtName, deserializeWithType, isCachable, supportsUpdate, updateArray, updateObject
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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, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer, parseDouble
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Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer
deserializeWithType, findBackReference, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, replaceDelegatee, unwrappingDeserializer
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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_instance
protected static final JsonNodeDeserializer.ArrayDeserializer _instance
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Method Detail
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getInstance
public static JsonNodeDeserializer.ArrayDeserializer getInstance()
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deserialize
public ArrayNode deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt) throws java.io.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).
Note that this method is never called for JSON null literal, and thus deserializers need (and should) not check for it.
- Specified by:
deserialize
in classJsonDeserializer<ArrayNode>
- Parameters:
p
- Parsed used for reading JSON contentctxt
- Context that can be used to access information about this deserialization activity.- Returns:
- Deserialized value
- Throws:
java.io.IOException
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deserialize
public ArrayNode deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, ArrayNode node) throws java.io.IOException
Variant needed to support both root-level `updateValue()` and merging.- Overrides:
deserialize
in classJsonDeserializer<ArrayNode>
- Throws:
java.io.IOException
- Since:
- 2.9
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