Package com.datastax.astra.internal.serdes.tables

Class DoubleDeserializer

java.lang.Object
com.fasterxml.jackson.databind.JsonDeserializer<Double>
com.fasterxml.jackson.databind.deser.std.StdDeserializer<Double>
com.datastax.astra.internal.serdes.tables.DoubleDeserializer
All Implemented Interfaces:
com.fasterxml.jackson.databind.deser.NullValueProvider, com.fasterxml.jackson.databind.deser.ValueInstantiator.Gettable, Serializable
public class DoubleDeserializer extends com.fasterxml.jackson.databind.deser.std.StdDeserializer<Double>
A custom deserializer for Double values, extending StdDeserializer. This class provides special handling for textual representations of special floating-point values such as "Infinity", "-Infinity", and "NaN".

The deserializer converts these strings to their corresponding Double constants: Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, and Double.NaN. For any other input string, it attempts to parse the value as a Double using Double.parseDouble(String).

See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

    com.fasterxml.jackson.databind.JsonDeserializer.None

  • Field Summary

    Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

    _valueClass, _valueType, F_MASK_ACCEPT_ARRAYS, F_MASK_INT_COERCIONS

  • Constructor Summary

    Constructors
    Constructor
    Description
    DoubleDeserializer()
    Default constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    Double
    deserialize(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt)
    Deserializes a JSON string into a Double object.

    Methods inherited from class 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, deserializeWithType, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueClass, getValueInstantiator, getValueType, getValueType, handledType, handleMissingEndArrayForSingle, handleNestedArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer

    Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer

    deserialize, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, isCachable, logicalType, replaceDelegatee, supportsUpdate, unwrappingDeserializer

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • DoubleDeserializer

      public DoubleDeserializer()
      Default constructor. Initializes the deserializer for Double type.

  • Method Details

    • deserialize

      public Double deserialize(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt) throws IOException
      Deserializes a JSON string into a Double object.

      Special string values such as "Infinity", "-Infinity", and "NaN" are mapped to their respective Double constants. For other strings, the value is parsed as a Double.

      Specified by:
      deserialize in class com.fasterxml.jackson.databind.JsonDeserializer<Double>
      Parameters:
      p - the JsonParser providing access to the JSON content.
      ctxt - the DeserializationContext for contextual information.
      Returns:
      the deserialized Double value.
      Throws:
      IOException - if an I/O error occurs or if the input is invalid.