Package com.fasterxml.jackson.databind.ser.std

Class StdSerializer<T>

java.lang.Object

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

com.fasterxml.jackson.databind.ser.std.StdSerializer<T>

All Implemented Interfaces:

JsonFormatVisitable, SchemaAware, Serializable

Direct Known Subclasses:

BeanSerializerBase, ByteArraySerializer, ContainerSerializer, CoreXMLSerializers.XMLGregorianCalendarSerializer, DOMSerializer, FailingSerializer, JsonValueSerializer, NullSerializer, RawSerializer, ReferenceTypeSerializer, SerializableSerializer, StaticListSerializerBase, StdArraySerializers.CharArraySerializer, StdDelegatingSerializer, StdKeySerializer, StdKeySerializers.Default, StdKeySerializers.Dynamic, StdKeySerializers.EnumKeySerializer, StdKeySerializers.StringKeySerializer, StdScalarSerializer, TokenBufferSerializer, ToStringSerializerBase, UnknownSerializer

public abstract class StdSerializer<T>
extends JsonSerializer<T>
implements JsonFormatVisitable, SchemaAware, Serializable

Base class used by all standard serializers, and can also be used for custom serializers (in fact, this is the recommended base class to use). Provides convenience methods for implementing SchemaAware

See Also:

Serialized Form

Nested Class Summary

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

JsonSerializer.None

Method Summary

Modifier and Type	Method	Description
void	acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)	Default implementation specifies no format.
JsonNode	getSchema(SerializerProvider provider, Type typeHint)	Default implementation simply claims type is "string"; usually overriden by custom serializers.
JsonNode	getSchema(SerializerProvider provider, Type typeHint, boolean isOptional)	Default implementation simply claims type is "string"; usually overriden by custom serializers.
Class<T>	handledType()	Method for accessing type of Objects this serializer can handle.
abstract void	serialize(T value, JsonGenerator gen, SerializerProvider provider)	Method that can be called to ask implementation to serialize values of type this serializer handles.
void	wrapAndThrow(SerializerProvider provider, Throwable t, Object bean, int index)
void	wrapAndThrow(SerializerProvider provider, Throwable t, Object bean, String fieldName)	Method that will modify caught exception (passed in as argument) as necessary to include reference information, and to ensure it is a subtype of IOException, or an unchecked exception.

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

getDelegatee, isEmpty, isEmpty, isUnwrappingSerializer, properties, replaceDelegatee, serializeWithType, unwrappingSerializer, usesObjectId, withFilterId

Methods inherited from class java.lang.Object

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

Method Detail

handledType

public Class<T> handledType()

Description copied from class: JsonSerializer

Method for accessing type of Objects this serializer can handle. Note that this information is not guaranteed to be exact -- it may be a more generic (super-type) -- but it should not be incorrect (return a non-related type).

Default implementation will return null, which essentially means same as returning Object.class would; that is, that nothing is known about handled type.

Overrides:

handledType in class JsonSerializer<T>

serialize

public abstract void serialize(T value,
                               JsonGenerator gen,
                               SerializerProvider provider)
                        throws IOException

Description copied from class: JsonSerializer

Method that can be called to ask implementation to serialize values of type this serializer handles.

Specified by:

serialize in class JsonSerializer<T>

Parameters:

value - Value to serialize; can not be null.

gen - Generator used to output resulting Json content

provider - Provider that can be used to get serializers for serializing Objects value contains, if any.

Throws:

IOException

acceptJsonFormatVisitor

public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor,
                                    JavaType typeHint)
                             throws JsonMappingException

Default implementation specifies no format. This behavior is usually overriden by custom serializers.

Specified by:

acceptJsonFormatVisitor in interface JsonFormatVisitable

Overrides:

acceptJsonFormatVisitor in class JsonSerializer<T>

typeHint - Type of element (entity like property) being visited

Throws:

JsonMappingException

getSchema

public JsonNode getSchema(SerializerProvider provider,
                          Type typeHint)
                   throws JsonMappingException

Default implementation simply claims type is "string"; usually overriden by custom serializers.

Specified by:

getSchema in interface SchemaAware

Parameters:

provider - The serializer provider.

typeHint - A hint about the type.

Returns:

Json-schema for this serializer.

Throws:

JsonMappingException

getSchema

public JsonNode getSchema(SerializerProvider provider,
                          Type typeHint,
                          boolean isOptional)
                   throws JsonMappingException

Default implementation simply claims type is "string"; usually overriden by custom serializers.

Specified by:

getSchema in interface SchemaAware

Parameters:

provider - The serializer provider.

typeHint - A hint about the type.

isOptional - Is the type optional

Returns:

Json-schema for this serializer.

Throws:

JsonMappingException

wrapAndThrow

public void wrapAndThrow(SerializerProvider provider,
                         Throwable t,
                         Object bean,
                         String fieldName)
                  throws IOException

Method that will modify caught exception (passed in as argument) as necessary to include reference information, and to ensure it is a subtype of IOException, or an unchecked exception.

Rules for wrapping and unwrapping are bit complicated; essentially:

• Errors are to be passed as is (if uncovered via unwrapping)
• "Plain" IOExceptions (ones that are not of type JsonMappingException are to be passed as is

Throws:

IOException

wrapAndThrow

public void wrapAndThrow(SerializerProvider provider,
                         Throwable t,
                         Object bean,
                         int index)
                  throws IOException

Throws:

IOException