com.fasterxml.jackson.datatype.pcollections.deser

Class PCollectionsMapDeserializer<T extends org.pcollections.PMap<Object,Object>>

java.lang.Object

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

com.fasterxml.jackson.datatype.pcollections.deser.PCollectionsMapDeserializer<T>

All Implemented Interfaces:

com.fasterxml.jackson.databind.deser.ContextualDeserializer, com.fasterxml.jackson.databind.deser.NullValueProvider

Direct Known Subclasses:

HashTreePMapDeserializer

public abstract class PCollectionsMapDeserializer<T extends org.pcollections.PMap<Object,Object>>
extends com.fasterxml.jackson.databind.JsonDeserializer<T>
implements com.fasterxml.jackson.databind.deser.ContextualDeserializer

Nested Class Summary

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

com.fasterxml.jackson.databind.JsonDeserializer.None

Field Summary

Fields

Modifier and Type	Field and Description
protected com.fasterxml.jackson.databind.KeyDeserializer	_keyDeserializer Key deserializer used, if not null.
protected com.fasterxml.jackson.databind.type.MapType	_mapType
protected com.fasterxml.jackson.databind.jsontype.TypeDeserializer	_typeDeserializerForValue If value instances have polymorphic type information, this is the type deserializer that can handle it
protected com.fasterxml.jackson.databind.JsonDeserializer<?>	_valueDeserializer Value deserializer.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PCollectionsMapDeserializer(com.fasterxml.jackson.databind.type.MapType type, com.fasterxml.jackson.databind.KeyDeserializer keyDeser, com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeser, com.fasterxml.jackson.databind.JsonDeserializer<?> deser)

Method Summary

Modifier and Type	Method and Description
protected T	_deserializeEntries(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt)
protected T	_handleNull(com.fasterxml.jackson.databind.DeserializationContext ctxt, Object key, com.fasterxml.jackson.databind.JsonDeserializer<?> valueDeser, T map) Overridable helper method called when a JSON null value is encountered.
com.fasterxml.jackson.databind.JsonDeserializer<?>	createContextual(com.fasterxml.jackson.databind.DeserializationContext ctxt, com.fasterxml.jackson.databind.BeanProperty property) Method called to finalize setup of this deserializer, after deserializer itself has been registered.
protected abstract T	createEmptyMap()
T	deserialize(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt)
Object	deserializeWithType(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt, com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeserializer) Base implementation that does not assume specific type inclusion mechanism.
abstract PCollectionsMapDeserializer<T>	withResolved(com.fasterxml.jackson.databind.KeyDeserializer keyDeser, com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeser, com.fasterxml.jackson.databind.JsonDeserializer<?> valueDeser) Overridable fluent factory method used for creating contextual instances.

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

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

Methods inherited from class java.lang.Object

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

Field Detail

_mapType

protected final com.fasterxml.jackson.databind.type.MapType _mapType

_keyDeserializer

protected com.fasterxml.jackson.databind.KeyDeserializer _keyDeserializer

Key deserializer used, if not null. If null, String from JSON content is used as is.

_valueDeserializer

protected com.fasterxml.jackson.databind.JsonDeserializer<?> _valueDeserializer

Value deserializer.

_typeDeserializerForValue

protected final com.fasterxml.jackson.databind.jsontype.TypeDeserializer _typeDeserializerForValue

If value instances have polymorphic type information, this is the type deserializer that can handle it

Constructor Detail

PCollectionsMapDeserializer

protected PCollectionsMapDeserializer(com.fasterxml.jackson.databind.type.MapType type,
                                      com.fasterxml.jackson.databind.KeyDeserializer keyDeser,
                                      com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeser,
                                      com.fasterxml.jackson.databind.JsonDeserializer<?> deser)

Method Detail

withResolved

public abstract PCollectionsMapDeserializer<T> withResolved(com.fasterxml.jackson.databind.KeyDeserializer keyDeser,
                                                            com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeser,
                                                            com.fasterxml.jackson.databind.JsonDeserializer<?> valueDeser)

Overridable fluent factory method used for creating contextual instances.

createContextual

public com.fasterxml.jackson.databind.JsonDeserializer<?> createContextual(com.fasterxml.jackson.databind.DeserializationContext ctxt,
                                                                           com.fasterxml.jackson.databind.BeanProperty property)
                                                                    throws com.fasterxml.jackson.databind.JsonMappingException

Method called to finalize setup of this deserializer, after deserializer itself has been registered. This is needed to handle recursive and transitive dependencies.

Specified by:

createContextual in interface com.fasterxml.jackson.databind.deser.ContextualDeserializer

Throws:

com.fasterxml.jackson.databind.JsonMappingException

deserializeWithType

public Object deserializeWithType(com.fasterxml.jackson.core.JsonParser p,
                                  com.fasterxml.jackson.databind.DeserializationContext ctxt,
                                  com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeserializer)
                           throws IOException

Base implementation that does not assume specific type inclusion mechanism. Sub-classes are expected to override this method if they are to handle type information.

Overrides:

deserializeWithType in class com.fasterxml.jackson.databind.JsonDeserializer<T extends org.pcollections.PMap<Object,Object>>

Throws:

IOException

deserialize

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

Specified by:

deserialize in class com.fasterxml.jackson.databind.JsonDeserializer<T extends org.pcollections.PMap<Object,Object>>

Throws:

IOException

createEmptyMap

protected abstract T createEmptyMap()

_deserializeEntries

protected T _deserializeEntries(com.fasterxml.jackson.core.JsonParser p,
                                com.fasterxml.jackson.databind.DeserializationContext ctxt)
                         throws IOException

Throws:

IOException

_handleNull

protected T _handleNull(com.fasterxml.jackson.databind.DeserializationContext ctxt,
                        Object key,
                        com.fasterxml.jackson.databind.JsonDeserializer<?> valueDeser,
                        T map)
                 throws IOException

Overridable helper method called when a JSON null value is encountered. Since PCollections Maps typically do not allow null values, special handling is needed; default is to simply ignore and skip such values, but alternative could be to throw an exception.

Throws:

IOException