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

Class StringSerializer

java.lang.Object

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

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

com.fasterxml.jackson.databind.ser.std.StdScalarSerializer<Object>

com.fasterxml.jackson.databind.ser.std.StringSerializer

All Implemented Interfaces:

JsonFormatVisitable, SchemaAware, Serializable

public final class StringSerializer
extends StdScalarSerializer<Object>

This is the special serializer for regular Strings.

Since this is one of "native" types, no type information is ever included on serialization (unlike for most scalar types as of 1.5)

See Also:

• Serialized Form

Nested Class Summary

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

JsonSerializer.None

Constructor Summary

Constructors

Constructor	Description
StringSerializer()

Method Summary

Modifier and Type	Method	Description
void	acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)	Default implementation specifies no format.
JsonNode	getSchema(SerializerProvider provider, Type typeHint)	Deprecated. Since 2.15
boolean	isEmpty(SerializerProvider prov, Object value)	Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).
void	serialize(Object value, JsonGenerator gen, SerializerProvider provider)	Method that can be called to ask implementation to serialize values of type this serializer handles.
final void	serializeWithType(Object value, JsonGenerator gen, 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.

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, withIgnoredProperties

Methods inherited from class java.lang.Object

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

Constructor Details

StringSerializer

public StringSerializer()

Method Details

isEmpty

public boolean isEmpty(SerializerProvider prov,
 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<Object>

serialize

public void serialize(Object 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 StdSerializer<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:

IOException

serializeWithType

public final void serializeWithType(Object value,
 JsonGenerator gen,
 SerializerProvider provider,
 TypeSerializer typeSer)
                             throws IOException

Description copied from class: StdScalarSerializer

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 StdScalarSerializer<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.

typeSer - Type serializer to use for including type information

Throws:

IOException

getSchema

@Deprecated
public JsonNode getSchema(SerializerProvider provider,
 Type typeHint)

Deprecated.

Since 2.15

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 StdScalarSerializer<Object>

Parameters:

provider - The serializer provider.

typeHint - A hint about the type.

Returns:

Json-schema for this serializer.

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 StdScalarSerializer<Object>

Parameters:

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

Throws:

JsonMappingException