Class StdDeserializer.NumberDeserializer
- java.lang.Object
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- org.codehaus.jackson.map.JsonDeserializer<T>
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- org.codehaus.jackson.map.deser.std.StdDeserializer<T>
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- org.codehaus.jackson.map.deser.std.StdScalarDeserializer<java.lang.Number>
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- org.codehaus.jackson.map.deser.std.StdDeserializer.NumberDeserializer
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- Enclosing class:
- StdDeserializer<T>
public static final class StdDeserializer.NumberDeserializer extends StdScalarDeserializer<java.lang.Number>
For typeNumber.class
, we can just rely on type mappings that plainJsonParser.getNumberValue()
returns.Since 1.5, there is one additional complication: some numeric types (specifically, int/Integer and double/Double) are "non-typed"; meaning that they will NEVER be output with type information. But other numeric types may need such type information. This is why
deserializeWithType(org.codehaus.jackson.JsonParser, org.codehaus.jackson.map.DeserializationContext, org.codehaus.jackson.map.TypeDeserializer)
must be overridden.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.codehaus.jackson.map.deser.std.StdDeserializer
StdDeserializer.BigDecimalDeserializer, StdDeserializer.BigIntegerDeserializer, StdDeserializer.BooleanDeserializer, StdDeserializer.ByteDeserializer, StdDeserializer.CharacterDeserializer, StdDeserializer.DoubleDeserializer, StdDeserializer.FloatDeserializer, StdDeserializer.IntegerDeserializer, StdDeserializer.LongDeserializer, StdDeserializer.NumberDeserializer, StdDeserializer.PrimitiveOrWrapperDeserializer<T>, StdDeserializer.ShortDeserializer, StdDeserializer.SqlDateDeserializer, StdDeserializer.StackTraceElementDeserializer
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Nested classes/interfaces inherited from class org.codehaus.jackson.map.JsonDeserializer
JsonDeserializer.None
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Field Summary
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Fields inherited from class org.codehaus.jackson.map.deser.std.StdDeserializer
_valueClass
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Constructor Summary
Constructors Constructor Description NumberDeserializer()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Number
deserialize(JsonParser jp, DeserializationContext ctxt)
Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles.java.lang.Object
deserializeWithType(JsonParser jp, DeserializationContext ctxt, TypeDeserializer typeDeserializer)
As mentioned in class Javadoc, there is additional complexity in handling potentially mixed type information here.-
Methods inherited from class org.codehaus.jackson.map.deser.std.StdDeserializer
_parseBoolean, _parseBooleanFromNumber, _parseBooleanPrimitive, _parseByte, _parseDate, _parseDouble, _parseDoublePrimitive, _parseFloat, _parseFloatPrimitive, _parseInteger, _parseIntPrimitive, _parseLong, _parseLongPrimitive, _parseShort, _parseShortPrimitive, findDeserializer, getValueClass, getValueType, handleUnknownProperty, isDefaultSerializer, parseDouble, reportUnknownProperty
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Methods inherited from class org.codehaus.jackson.map.JsonDeserializer
deserialize, getEmptyValue, getNullValue, unwrappingDeserializer
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Method Detail
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deserialize
public java.lang.Number deserialize(JsonParser jp, DeserializationContext ctxt) throws java.io.IOException, JsonProcessingException
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. 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<java.lang.Number>
- Parameters:
jp
- Parsed used for reading JSON contentctxt
- Context that can be used to access information about this deserialization activity.- Returns:
- Deserializer value
- Throws:
java.io.IOException
JsonProcessingException
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deserializeWithType
public java.lang.Object deserializeWithType(JsonParser jp, DeserializationContext ctxt, TypeDeserializer typeDeserializer) throws java.io.IOException, JsonProcessingException
As mentioned in class Javadoc, there is additional complexity in handling potentially mixed type information here. Because of this, we must actually check for "raw" integers and doubles first, before calling type deserializer.- Overrides:
deserializeWithType
in classStdScalarDeserializer<java.lang.Number>
typeDeserializer
- Deserializer to use for handling type information- Throws:
java.io.IOException
JsonProcessingException
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