org.codehaus.jackson.map.deser
Class CollectionDeserializer

java.lang.Object
  extended by org.codehaus.jackson.map.JsonDeserializer<T>
      extended by org.codehaus.jackson.map.deser.StdDeserializer<java.util.Collection<java.lang.Object>>
          extended by org.codehaus.jackson.map.deser.CollectionDeserializer

public class CollectionDeserializer
extends StdDeserializer<java.util.Collection<java.lang.Object>>

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.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.codehaus.jackson.map.deser.StdDeserializer
StdDeserializer.BigDecimalDeserializer, StdDeserializer.BigIntegerDeserializer, StdDeserializer.BooleanDeserializer, StdDeserializer.ByteDeserializer, StdDeserializer.CalendarDeserializer, StdDeserializer.CharacterDeserializer, StdDeserializer.ClassDeserializer, StdDeserializer.DoubleDeserializer, StdDeserializer.FloatDeserializer, StdDeserializer.IntegerDeserializer, StdDeserializer.LongDeserializer, StdDeserializer.NumberDeserializer, StdDeserializer.PrimitiveOrWrapperDeserializer<T>, StdDeserializer.ShortDeserializer, StdDeserializer.SqlDateDeserializer, StdDeserializer.StackTraceElementDeserializer, StdDeserializer.StringDeserializer
 
Constructor Summary
CollectionDeserializer(java.lang.Class<?> collectionClass, JsonDeserializer<java.lang.Object> valueDeser)
           
 
Method Summary
 java.util.Collection<java.lang.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.
 java.util.Collection<java.lang.Object> deserialize(JsonParser jp, DeserializationContext ctxt, java.util.Collection<java.lang.Object> result)
          Alternate deserialization method (compared to the most commonly used, JsonDeserializer.deserialize(JsonParser, DeserializationContext)), which takes in initialized value instance, which is to be configured and/or populated by deserializer.
 
Methods inherited from class org.codehaus.jackson.map.deser.StdDeserializer
_parseDate, _parseDouble, _parseInt, getValueClass
 
Methods inherited from class org.codehaus.jackson.map.JsonDeserializer
getNullValue, shouldBeCached
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CollectionDeserializer

public CollectionDeserializer(java.lang.Class<?> collectionClass,
                              JsonDeserializer<java.lang.Object> valueDeser)
Method Detail

deserialize

public java.util.Collection<java.lang.Object> deserialize(JsonParser jp,
                                                          DeserializationContext ctxt)
                                                   throws java.io.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<java.util.Collection<java.lang.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:
java.io.IOException
JsonProcessingException

deserialize

public java.util.Collection<java.lang.Object> deserialize(JsonParser jp,
                                                          DeserializationContext ctxt,
                                                          java.util.Collection<java.lang.Object> result)
                                                   throws java.io.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, which is to be configured and/or populated by deserializer. Method is only used for subset of all supported types; most commonly just for Collections and Maps, but potentially also for beans/POJOs.

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<java.util.Collection<java.lang.Object>>
Throws:
java.io.IOException
JsonProcessingException