org.apache.unomi.persistence.spi

Class PropertyTypedObjectDeserializer

java.lang.Object

com.fasterxml.jackson.databind.JsonDeserializer<T>

com.fasterxml.jackson.databind.deser.std.StdDeserializer<Object>

com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer

org.apache.unomi.persistence.spi.PropertyTypedObjectDeserializer

All Implemented Interfaces:

com.fasterxml.jackson.databind.deser.ContextualDeserializer, com.fasterxml.jackson.databind.deser.NullValueProvider, com.fasterxml.jackson.databind.deser.ResolvableDeserializer, com.fasterxml.jackson.databind.deser.ValueInstantiator.Gettable, Serializable

public class PropertyTypedObjectDeserializer
extends com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer

This Jackson deserializer makes it possible to register field matching regular expressions that can be matched to class names, as in the following example: SimpleModule deserializerModule = new SimpleModule("PropertyTypedObjectDeserializerModule", new Version(1, 0, 0, null, "org.apache.unomi.rest", "deserializer")); PropertyTypedObjectDeserializer propertyTypedObjectDeserializer = new PropertyTypedObjectDeserializer(null, null); propertyTypedObjectDeserializer.registerMapping("type=.*Condition", Condition.class); deserializerModule.addDeserializer(Object.class, propertyTypedObjectDeserializer); objectMapper.registerModule(deserializerModule); In this example any JSON object that has a "type" property that matches the ".*Condition" regular expression will be parsed and mapped to a Condition class Note that there exists a way to map properties as type identifiers in Jackson, but this feature is very limited and requires hardcoding possible values. This deserializer is much more flexible and powerful.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer

com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer.Vanilla

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.UntypedObjectDeserializer

_listDeserializer, _listType, _mapDeserializer, _mapType, _nonMerging, _numberDeserializer, _stringDeserializer, NO_OBJECTS

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 and Description
PropertyTypedObjectDeserializer(com.fasterxml.jackson.databind.JavaType listType, com.fasterxml.jackson.databind.JavaType mapType)

Method Summary

Modifier and Type	Method and Description
Object	deserialize(com.fasterxml.jackson.core.JsonParser jp, com.fasterxml.jackson.databind.DeserializationContext ctxt)
void	registerMapping(String matchExpression, Class<? extends Object> mappedClass)
void	unregisterMapping(String matchExpression)

Methods inherited from class com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer

_clearIfStdImpl, _findCustomDeser, _mapObjectWithDups, createContextual, deserialize, deserializeWithType, isCachable, logicalType, mapArray, mapArray, mapArrayToArray, mapObject, mapObject, resolve, supportsUpdate

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, _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, 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

deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, replaceDelegatee, unwrappingDeserializer

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyTypedObjectDeserializer

public PropertyTypedObjectDeserializer(com.fasterxml.jackson.databind.JavaType listType,
                                       com.fasterxml.jackson.databind.JavaType mapType)

Method Detail

registerMapping

public void registerMapping(String matchExpression,
                            Class<? extends Object> mappedClass)

unregisterMapping

public void unregisterMapping(String matchExpression)

deserialize

public Object deserialize(com.fasterxml.jackson.core.JsonParser jp,
                          com.fasterxml.jackson.databind.DeserializationContext ctxt)
                   throws IOException

Overrides:

deserialize in class com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer

Throws:

IOException