public abstract class ContainerSerializer<T> extends StdSerializer<T>
Collection
s (Lists
, Sets
etc) and Map
s and iterable things
(Iterator
s).JsonSerializer.None
Modifier and Type | Method and Description |
---|---|
abstract JsonSerializer<?> |
getContentSerializer()
Accessor for serializer used for serializing contents
(List and array elements, Map values etc) of the
container for which this serializer is used, if it is
known statically.
|
abstract JavaType |
getContentType()
Accessor for finding declared (static) element type for
type this serializer is used for.
|
abstract boolean |
hasSingleElement(T value)
Method called to determine if the given value (of type handled by
this serializer) contains exactly one element.
|
ContainerSerializer<?> |
withValueTypeSerializer(TypeSerializer vts)
Factory(-like) method that can be used to construct a new container
serializer that uses specified
TypeSerializer for decorating
contained values with additional type information. |
acceptJsonFormatVisitor, getSchema, getSchema, handledType, serialize, wrapAndThrow, wrapAndThrow
getDelegatee, isEmpty, isEmpty, isUnwrappingSerializer, properties, replaceDelegatee, serializeWithType, unwrappingSerializer, usesObjectId, withFilterId
public ContainerSerializer<?> withValueTypeSerializer(TypeSerializer vts)
TypeSerializer
for decorating
contained values with additional type information.vts
- Type serializer to use for contained values; can be null,
in which case 'this' serializer is returned as ispublic abstract JavaType getContentType()
public abstract JsonSerializer<?> getContentSerializer()
getContentType()
and
SerializerProvider.findValueSerializer(java.lang.Class<?>, com.fasterxml.jackson.databind.BeanProperty)
.public abstract boolean hasSingleElement(T value)
Note: although it might seem sensible to instead define something like "getElementCount()" method, this would not work well for containers that do not keep track of size (like linked lists may not).
Note, too, that as of now (2.9) this method is only called by serializer
itself; and specifically is not used for non-array/collection types
like Map
or Map.Entry
instances.
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