public static class CoreXMLDeserializers.Std extends FromStringDeserializer<Object>
QName, Duration and XMLGregorianCalendar.
Combined into a single class to eliminate bunch of one-off implementation
classes, to reduce resulting jar size (mostly).FromStringDeserializer.StdJsonDeserializer.None| Modifier and Type | Field and Description |
|---|---|
protected int |
_kind |
_valueClass, F_MASK_INT_COERCIONS| Constructor and Description |
|---|
CoreXMLDeserializers.Std(Class<?> raw,
int kind) |
| Modifier and Type | Method and Description |
|---|---|
protected Object |
_deserialize(String value,
DeserializationContext ctxt) |
protected XMLGregorianCalendar |
_gregorianFromDate(DeserializationContext ctxt,
Date d) |
Object |
deserialize(JsonParser p,
DeserializationContext ctxt)
Method that can be called to ask implementation to deserialize
JSON content into the value type this serializer handles.
|
_deserializeEmbedded, _deserializeFromEmptyString, findDeserializer, typesdeserializeWithType_coerceIntegral, _deserializeFromEmpty, _failDoubleToIntCoercion, _hasTextualNull, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _parseBoolean, _parseBooleanFromInt, _parseBooleanFromOther, _parseBooleanPrimitive, _parseByte, _parseDate, _parseDate, _parseDouble, _parseDoublePrimitive, _parseFloat, _parseFloatPrimitive, _parseInteger, _parseIntPrimitive, _parseLong, _parseLongPrimitive, _parseShort, _parseShortPrimitive, _parseString, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, getValueClass, getValueType, handledType, handleMissingEndArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer, parseDoubledeserialize, findBackReference, getDelegatee, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullValue, getNullValue, getObjectIdReader, isCachable, replaceDelegatee, unwrappingDeserializerpublic CoreXMLDeserializers.Std(Class<?> raw, int kind)
public Object deserialize(JsonParser p, DeserializationContext ctxt) throws IOException
JsonDeserializerPre-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 (jp.getCurrentToken() == JsonToken.START_OBJECT) {
jp.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.
deserialize in class FromStringDeserializer<Object>p - Parsed used for reading JSON contentctxt - Context that can be used to access information about
this deserialization activity.IOExceptionprotected Object _deserialize(String value, DeserializationContext ctxt) throws IOException
_deserialize in class FromStringDeserializer<Object>IOExceptionprotected XMLGregorianCalendar _gregorianFromDate(DeserializationContext ctxt, Date d)
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