org.codehaus.jackson.map.deser.std
Class CollectionDeserializer

java.lang.Object
  extended by org.codehaus.jackson.map.JsonDeserializer<T>
      extended by org.codehaus.jackson.map.deser.std.StdDeserializer<T>
          extended by org.codehaus.jackson.map.deser.std.ContainerDeserializerBase<Collection<Object>>
              extended by org.codehaus.jackson.map.deser.std.CollectionDeserializer
All Implemented Interfaces:
ResolvableDeserializer
Direct Known Subclasses:
CollectionDeserializer

public class CollectionDeserializer
extends ContainerDeserializerBase<Collection<Object>>
implements ResolvableDeserializer

Basic serializer that can take JSON "Array" structure and construct a Collection instance, with typed contents.

Note: for untyped content (one indicated by passing Object.class as the type), UntypedObjectDeserializer is used instead. It can also construct Lists, but not with specific POJO types, only other containers and primitives/wrappers.

Since:
1.9 (renamed from 'org.codehaus.jackson.map.deser.CollectionDeserializer)

Nested Class Summary
 
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
 
Nested classes/interfaces inherited from class org.codehaus.jackson.map.JsonDeserializer
JsonDeserializer.None
 
Field Summary
protected  JavaType _collectionType
           
protected  JsonDeserializer<Object> _delegateDeserializer
          Deserializer that is used iff delegate-based creator is to be used for deserializing from JSON Object.
protected  JsonDeserializer<Object> _valueDeserializer
          Value deserializer.
protected  ValueInstantiator _valueInstantiator
           
protected  TypeDeserializer _valueTypeDeserializer
          If element instances have polymorphic type information, this is the type deserializer that can handle it
 
Fields inherited from class org.codehaus.jackson.map.deser.std.StdDeserializer
_valueClass
 
Constructor Summary
protected CollectionDeserializer(CollectionDeserializer src)
          Copy-constructor that can be used by sub-classes to allow copy-on-write styling copying of settings of an existing instance.
protected CollectionDeserializer(JavaType collectionType, JsonDeserializer<Object> valueDeser, TypeDeserializer valueTypeDeser, Constructor<Collection<Object>> defCtor)
          Deprecated. Since 1.9, use variant that takes ValueInstantiator
  CollectionDeserializer(JavaType collectionType, JsonDeserializer<Object> valueDeser, TypeDeserializer valueTypeDeser, ValueInstantiator valueInstantiator)
           
 
Method Summary
 Collection<Object> deserialize(JsonParser jp, DeserializationContext ctxt)
          Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles.
 Collection<Object> deserialize(JsonParser jp, DeserializationContext ctxt, Collection<Object> result)
          Alternate deserialization method (compared to the most commonly used, JsonDeserializer.deserialize(JsonParser, DeserializationContext)), which takes in initialized value instance, to be configured and/or populated by deserializer.
 Object deserializeWithType(JsonParser jp, DeserializationContext ctxt, TypeDeserializer typeDeserializer)
          Base implementation that does not assume specific type inclusion mechanism.
 JsonDeserializer<Object> getContentDeserializer()
          Accesor for deserializer use for deserializing content values.
 JavaType getContentType()
          Accessor for declared type of contained value elements; either exact type, or one of its supertypes.
 void resolve(DeserializationConfig config, DeserializerProvider provider)
          Method called to finalize setup of this deserializer, after deserializer itself has been registered.
 
Methods inherited from class org.codehaus.jackson.map.deser.std.StdDeserializer
_parseBoolean, _parseBooleanPrimitive, _parseByte, _parseDate, _parseDouble, _parseDoublePrimitive, _parseFloat, _parseFloatPrimitive, _parseInteger, _parseIntPrimitive, _parseLong, _parseLongPrimitive, _parseShort, _parseShortPrimitive, findDeserializer, getValueClass, getValueType, handleUnknownProperty, isDefaultSerializer, parseDouble, reportUnknownProperty
 
Methods inherited from class org.codehaus.jackson.map.JsonDeserializer
getEmptyValue, getNullValue, unwrappingDeserializer
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

_collectionType

protected final JavaType _collectionType

_valueDeserializer

protected final JsonDeserializer<Object> _valueDeserializer
Value deserializer.


_valueTypeDeserializer

protected final TypeDeserializer _valueTypeDeserializer
If element instances have polymorphic type information, this is the type deserializer that can handle it


_valueInstantiator

protected final ValueInstantiator _valueInstantiator
Since:
1.9

_delegateDeserializer

protected JsonDeserializer<Object> _delegateDeserializer
Deserializer that is used iff delegate-based creator is to be used for deserializing from JSON Object.

Constructor Detail

CollectionDeserializer

@Deprecated
protected CollectionDeserializer(JavaType collectionType,
                                            JsonDeserializer<Object> valueDeser,
                                            TypeDeserializer valueTypeDeser,
                                            Constructor<Collection<Object>> defCtor)
Deprecated. Since 1.9, use variant that takes ValueInstantiator


CollectionDeserializer

public CollectionDeserializer(JavaType collectionType,
                              JsonDeserializer<Object> valueDeser,
                              TypeDeserializer valueTypeDeser,
                              ValueInstantiator valueInstantiator)
Since:
1.9

CollectionDeserializer

protected CollectionDeserializer(CollectionDeserializer src)
Copy-constructor that can be used by sub-classes to allow copy-on-write styling copying of settings of an existing instance.

Since:
1.9
Method Detail

resolve

public void resolve(DeserializationConfig config,
                    DeserializerProvider provider)
             throws 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:
resolve in interface ResolvableDeserializer
provider - Provider that has constructed deserializer this method is called on.
Throws:
JsonMappingException

getContentType

public JavaType getContentType()
Description copied from class: ContainerDeserializerBase
Accessor for declared type of contained value elements; either exact type, or one of its supertypes.

Specified by:
getContentType in class ContainerDeserializerBase<Collection<Object>>

getContentDeserializer

public JsonDeserializer<Object> getContentDeserializer()
Description copied from class: ContainerDeserializerBase
Accesor for deserializer use for deserializing content values.

Specified by:
getContentDeserializer in class ContainerDeserializerBase<Collection<Object>>

deserialize

public Collection<Object> deserialize(JsonParser jp,
                                      DeserializationContext ctxt)
                               throws 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 class JsonDeserializer<Collection<Object>>
Parameters:
jp - Parsed used for reading JSON content
ctxt - Context that can be used to access information about this deserialization activity.
Returns:
Deserializer value
Throws:
IOException
JsonProcessingException

deserialize

public Collection<Object> deserialize(JsonParser jp,
                                      DeserializationContext ctxt,
                                      Collection<Object> result)
                               throws IOException,
                                      JsonProcessingException
Description copied from class: JsonDeserializer
Alternate deserialization method (compared to the most commonly used, JsonDeserializer.deserialize(JsonParser, DeserializationContext)), which takes in initialized value instance, to be configured and/or populated by deserializer. Method is not necessarily used for all supported types; most commonly it is used for Collections and Maps.

Default implementation just throws UnsupportedOperationException, to indicate that types that do not explicitly add support do not expect to get the call.

Overrides:
deserialize in class JsonDeserializer<Collection<Object>>
Throws:
IOException
JsonProcessingException

deserializeWithType

public Object deserializeWithType(JsonParser jp,
                                  DeserializationContext ctxt,
                                  TypeDeserializer typeDeserializer)
                           throws IOException,
                                  JsonProcessingException
Description copied from class: StdDeserializer
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 StdDeserializer<Collection<Object>>
typeDeserializer - Deserializer to use for handling type information
Throws:
IOException
JsonProcessingException