com.fasterxml.jackson.databind.ser.std

Class ToStringSerializerBase

java.lang.Object

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

com.fasterxml.jackson.databind.ser.std.StdSerializer<java.lang.Object>

com.fasterxml.jackson.databind.ser.std.ToStringSerializerBase

All Implemented Interfaces:

JsonFormatVisitable, SchemaAware, java.io.Serializable

Direct Known Subclasses:

ToStringSerializer

public abstract class ToStringSerializerBase
extends StdSerializer<java.lang.Object>

Intermediate base class that serves as base for standard ToStringSerializer as well as for custom subtypes that want to add processing for converting from value to output into its String representation (whereas standard version simply calls value object's toString() method).

Since:

2.10

See Also:

Serialized Form

Nested Class Summary

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

JsonSerializer.None

Constructor Summary

Constructors

Constructor and Description
ToStringSerializerBase(java.lang.Class<?> handledType)

Method Summary

Modifier and Type	Method and Description
void	acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) Default implementation specifies no format.
JsonNode	getSchema(SerializerProvider provider, java.lang.reflect.Type typeHint) Default implementation simply claims type is "string"; usually overriden by custom serializers.
boolean	isEmpty(SerializerProvider prov, java.lang.Object value) Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).
void	serialize(java.lang.Object value, JsonGenerator gen, SerializerProvider provider) Method that can be called to ask implementation to serialize values of type this serializer handles.
void	serializeWithType(java.lang.Object value, JsonGenerator g, SerializerProvider provider, TypeSerializer typeSer) Default implementation will write type prefix, call regular serialization method (since assumption is that value itself does not need JSON Array or Object start/end markers), and then write type suffix.
abstract java.lang.String	valueToString(java.lang.Object value)

Methods inherited from class com.fasterxml.jackson.databind.ser.std.StdSerializer

getSchema, handledType, wrapAndThrow, wrapAndThrow

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ToStringSerializerBase

public ToStringSerializerBase(java.lang.Class<?> handledType)

Method Detail

isEmpty

public boolean isEmpty(SerializerProvider prov,
                       java.lang.Object value)

Description copied from class: JsonSerializer

Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).

Default implementation will consider only null values to be empty.

NOTE: replaces JsonSerializer.isEmpty(Object), which was deprecated in 2.5

Overrides:

isEmpty in class JsonSerializer<java.lang.Object>

serialize

public void serialize(java.lang.Object value,
                      JsonGenerator gen,
                      SerializerProvider provider)
               throws java.io.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 StdSerializer<java.lang.Object>

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:

java.io.IOException

serializeWithType

public void serializeWithType(java.lang.Object value,
                              JsonGenerator g,
                              SerializerProvider provider,
                              TypeSerializer typeSer)
                       throws java.io.IOException

Default implementation will write type prefix, call regular serialization method (since assumption is that value itself does not need JSON Array or Object start/end markers), and then write type suffix. This should work for most cases; some sub-classes may want to change this behavior.

Overrides:

serializeWithType in class JsonSerializer<java.lang.Object>

Parameters:

value - Value to serialize; can not be null.

g - Generator used to output resulting Json content

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

typeSer - Type serializer to use for including type information

Throws:

java.io.IOException

getSchema

public JsonNode getSchema(SerializerProvider provider,
                          java.lang.reflect.Type typeHint)
                   throws JsonMappingException

Description copied from class: StdSerializer

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

Specified by:

getSchema in interface SchemaAware

Overrides:

getSchema in class StdSerializer<java.lang.Object>

Parameters:

provider - The serializer provider.

typeHint - A hint about the type.

Returns:

Json-schema for this serializer.

Throws:

JsonMappingException

acceptJsonFormatVisitor

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

Description copied from class: StdSerializer

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

Specified by:

acceptJsonFormatVisitor in interface JsonFormatVisitable

Overrides:

acceptJsonFormatVisitor in class StdSerializer<java.lang.Object>

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

Throws:

JsonMappingException

valueToString

public abstract java.lang.String valueToString(java.lang.Object value)