Package org.codehaus.jackson.map.deser.std

Class CollectionDeserializer

  • All Implemented Interfaces:
    ResolvableDeserializer
    Direct Known Subclasses:
    CollectionDeserializer
    public class CollectionDeserializer
extends ContainerDeserializerBase<java.util.Collection<java.lang.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)

    • Field Detail

      • _collectionType

        protected final JavaType _collectionType

      • _valueDeserializer

        protected final JsonDeserializer<java.lang.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<java.lang.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<java.lang.Object> valueDeser,
                                 TypeDeserializer valueTypeDeser,
                                 java.lang.reflect.Constructor<java.util.Collection<java.lang.Object>> defCtor)
        Deprecated.
        Since 1.9, use variant that takes ValueInstantiator

      • 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

      • 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