class FactoryBasedEnumDeserializer extends StdDeserializer<java.lang.Object> implements ContextualDeserializer
EnumDeserializer
JsonDeserializer.None
Modifier and Type | Field and Description |
---|---|
protected SettableBeanProperty[] |
_creatorProps |
protected JsonDeserializer<?> |
_deser |
protected AnnotatedMethod |
_factory |
protected boolean |
_hasArgs |
protected JavaType |
_inputType |
private PropertyBasedCreator |
_propCreator
Lazily instantiated property-based creator.
|
protected ValueInstantiator |
_valueInstantiator |
private static long |
serialVersionUID |
_valueClass, F_MASK_ACCEPT_ARRAYS, F_MASK_INT_COERCIONS
Modifier | Constructor and Description |
---|---|
|
FactoryBasedEnumDeserializer(java.lang.Class<?> cls,
AnnotatedMethod f) |
|
FactoryBasedEnumDeserializer(java.lang.Class<?> cls,
AnnotatedMethod f,
JavaType paramType,
ValueInstantiator valueInstantiator,
SettableBeanProperty[] creatorProps) |
protected |
FactoryBasedEnumDeserializer(FactoryBasedEnumDeserializer base,
JsonDeserializer<?> deser) |
Modifier and Type | Method and Description |
---|---|
protected java.lang.Object |
_deserializeWithErrorWrapping(com.fasterxml.jackson.core.JsonParser p,
DeserializationContext ctxt,
SettableBeanProperty prop) |
JsonDeserializer<?> |
createContextual(DeserializationContext ctxt,
BeanProperty property)
Method called to see if a different (or differently configured) deserializer
is needed to deserialize values of specified property.
|
java.lang.Object |
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.
|
protected java.lang.Object |
deserializeEnumUsingPropertyBased(com.fasterxml.jackson.core.JsonParser p,
DeserializationContext ctxt,
PropertyBasedCreator creator) |
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.
|
private java.lang.Throwable |
throwOrReturnThrowable(java.lang.Throwable t,
DeserializationContext ctxt) |
protected java.lang.Object |
wrapAndThrow(java.lang.Throwable t,
java.lang.Object bean,
java.lang.String fieldName,
DeserializationContext ctxt) |
_byteOverflow, _coercedTypeDesc, _coerceEmptyString, _coerceIntegral, _coerceNullToken, _coerceTextualNull, _deserializeFromArray, _deserializeFromEmpty, _deserializeWrappedValue, _failDoubleToIntCoercion, _findNullProvider, _hasTextualNull, _intOverflow, _isEmptyOrTextualNull, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _neitherNull, _nonNullNumber, _parseBooleanFromInt, _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, handledType, handleMissingEndArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer, parseDouble
deserialize, findBackReference, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, replaceDelegatee, unwrappingDeserializer
private static final long serialVersionUID
protected final JavaType _inputType
protected final boolean _hasArgs
protected final AnnotatedMethod _factory
protected final JsonDeserializer<?> _deser
protected final ValueInstantiator _valueInstantiator
protected final SettableBeanProperty[] _creatorProps
private transient PropertyBasedCreator _propCreator
public FactoryBasedEnumDeserializer(java.lang.Class<?> cls, AnnotatedMethod f, JavaType paramType, ValueInstantiator valueInstantiator, SettableBeanProperty[] creatorProps)
public FactoryBasedEnumDeserializer(java.lang.Class<?> cls, AnnotatedMethod f)
protected FactoryBasedEnumDeserializer(FactoryBasedEnumDeserializer base, JsonDeserializer<?> deser)
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException
ContextualDeserializer
createContextual
in interface ContextualDeserializer
ctxt
- Deserialization context to access configuration, additional
deserializers that may be needed by this deserializerproperty
- Method, field or constructor parameter that represents the property
(and is used to assign deserialized value).
Should be available; but there may be cases where caller cannot provide it and
null is passed instead (in which case impls usually pass 'this' deserializer as is)JsonMappingException
public java.lang.Boolean supportsUpdate(DeserializationConfig config)
JsonDeserializer
Boolean.FALSE
if update is not supported at all (immutable values);
Boolean.TRUE
if update should usually work (regular POJOs, for example),
or null
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 if Boolean.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.
supportsUpdate
in class JsonDeserializer<java.lang.Object>
public boolean isCachable()
JsonDeserializer
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.
isCachable
in class JsonDeserializer<java.lang.Object>
public java.lang.Object deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt) throws java.io.IOException
JsonDeserializer
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.getCurrentToken() == 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.
deserialize
in class JsonDeserializer<java.lang.Object>
p
- Parsed used for reading JSON contentctxt
- Context that can be used to access information about
this deserialization activity.java.io.IOException
public java.lang.Object deserializeWithType(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer) throws java.io.IOException
StdDeserializer
deserializeWithType
in class StdDeserializer<java.lang.Object>
typeDeserializer
- Deserializer to use for handling type informationjava.io.IOException
protected java.lang.Object deserializeEnumUsingPropertyBased(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, PropertyBasedCreator creator) throws java.io.IOException
java.io.IOException
protected final java.lang.Object _deserializeWithErrorWrapping(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, SettableBeanProperty prop) throws java.io.IOException
java.io.IOException
protected java.lang.Object wrapAndThrow(java.lang.Throwable t, java.lang.Object bean, java.lang.String fieldName, DeserializationContext ctxt) throws java.io.IOException
java.io.IOException
private java.lang.Throwable throwOrReturnThrowable(java.lang.Throwable t, DeserializationContext ctxt) throws java.io.IOException
java.io.IOException