com.fasterxml.jackson.databind.jsontype

Class TypeSerializer

java.lang.Object

com.fasterxml.jackson.databind.jsontype.TypeSerializer

Direct Known Subclasses:

TypeSerializerBase

public abstract class TypeSerializer
extends Object

Interface for serializing type information regarding instances of specified base type (super class), so that exact subtype can be properly deserialized later on. These instances are to be called by regular JsonSerializers using proper contextual calls, to add type information using mechanism type serializer was configured with.

Constructor Summary

Constructors

Constructor and Description
TypeSerializer()

Method Summary

Modifier and Type	Method and Description
abstract TypeSerializer	forProperty(BeanProperty prop) Method called to create contextual version, to be used for values of given property.
abstract String	getPropertyName() Name of property that contains type information, if property-based inclusion is used.
abstract TypeIdResolver	getTypeIdResolver() Accessor for object that handles conversions between types and matching type ids.
abstract JsonTypeInfo.As	getTypeInclusion() Accessor for type information inclusion method that serializer uses; indicates how type information is embedded in resulting JSON.
abstract void	writeCustomTypePrefixForArray(Object value, JsonGenerator jgen, String typeId)
abstract void	writeCustomTypePrefixForObject(Object value, JsonGenerator jgen, String typeId) Method called to write initial part of type information for given value, when it will be output as JSON Object value (not as JSON Array or scalar), using specified custom type id instead of calling TypeIdResolver.
abstract void	writeCustomTypePrefixForScalar(Object value, JsonGenerator jgen, String typeId) Method called to write initial part of type information for given value, when it will be output as scalar JSON value (not as JSON Object or Array), using specified custom type id instead of calling TypeIdResolver.
abstract void	writeCustomTypeSuffixForArray(Object value, JsonGenerator jgen, String typeId)
abstract void	writeCustomTypeSuffixForObject(Object value, JsonGenerator jgen, String typeId)
abstract void	writeCustomTypeSuffixForScalar(Object value, JsonGenerator jgen, String typeId)
abstract void	writeTypePrefixForArray(Object value, JsonGenerator jgen) Method called to write initial part of type information for given value, when it will be output as JSON Array value (not as JSON Object or scalar).
void	writeTypePrefixForArray(Object value, JsonGenerator jgen, Class<?> type) Alternative version of the prefix-for-array method, which is given actual type to use (instead of using exact type of the value); typically a super type of actual value type
abstract void	writeTypePrefixForObject(Object value, JsonGenerator jgen) Method called to write initial part of type information for given value, when it will be output as JSON Object value (not as JSON Array or scalar).
void	writeTypePrefixForObject(Object value, JsonGenerator jgen, Class<?> type) Alternative version of the prefix-for-object method, which is given actual type to use (instead of using exact type of the value); typically a super type of actual value type
abstract void	writeTypePrefixForScalar(Object value, JsonGenerator jgen) Method called to write initial part of type information for given value, when it will be output as scalar JSON value (not as JSON Object or Array).
void	writeTypePrefixForScalar(Object value, JsonGenerator jgen, Class<?> type) Alternative version of the prefix-for-scalar method, which is given actual type to use (instead of using exact type of the value); typically a super type of actual value type
abstract void	writeTypeSuffixForArray(Object value, JsonGenerator jgen) Method called after value has been serialized, to close any scopes opened by earlier matching call to writeTypeSuffixForScalar(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator).
abstract void	writeTypeSuffixForObject(Object value, JsonGenerator jgen) Method called after value has been serialized, to close any scopes opened by earlier matching call to writeTypePrefixForObject(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator).
abstract void	writeTypeSuffixForScalar(Object value, JsonGenerator jgen) Method called after value has been serialized, to close any scopes opened by earlier matching call to writeTypePrefixForScalar(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator).

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeSerializer

public TypeSerializer()

Method Detail

forProperty

public abstract TypeSerializer forProperty(BeanProperty prop)

Method called to create contextual version, to be used for values of given property. This may be the type itself (as is the case for bean properties), or values contained (for Collection or Map valued properties).

Since:

2.0

getTypeInclusion

public abstract JsonTypeInfo.As getTypeInclusion()

Accessor for type information inclusion method that serializer uses; indicates how type information is embedded in resulting JSON.

getPropertyName

public abstract String getPropertyName()

Name of property that contains type information, if property-based inclusion is used.

getTypeIdResolver

public abstract TypeIdResolver getTypeIdResolver()

Accessor for object that handles conversions between types and matching type ids.

writeTypePrefixForScalar

public abstract void writeTypePrefixForScalar(Object value,
                                              JsonGenerator jgen)
                                       throws IOException

Method called to write initial part of type information for given value, when it will be output as scalar JSON value (not as JSON Object or Array). This means that the context after call can not be that of JSON Object; it may be Array or root context.

Parameters:

value - Value that will be serialized, for which type information is to be written

jgen - Generator to use for writing type information

Throws:

IOException

writeTypePrefixForObject

public abstract void writeTypePrefixForObject(Object value,
                                              JsonGenerator jgen)
                                       throws IOException

Method called to write initial part of type information for given value, when it will be output as JSON Object value (not as JSON Array or scalar). This means that context after call must be JSON Object, meaning that caller can then proceed to output field entries.

Parameters:

value - Value that will be serialized, for which type information is to be written

jgen - Generator to use for writing type information

Throws:

IOException

writeTypePrefixForArray

public abstract void writeTypePrefixForArray(Object value,
                                             JsonGenerator jgen)
                                      throws IOException

Method called to write initial part of type information for given value, when it will be output as JSON Array value (not as JSON Object or scalar). This means that context after call must be JSON Array, that is, there must be an open START_ARRAY to write contents in.

Parameters:

value - Value that will be serialized, for which type information is to be written

jgen - Generator to use for writing type information

Throws:

IOException

writeTypeSuffixForScalar

public abstract void writeTypeSuffixForScalar(Object value,
                                              JsonGenerator jgen)
                                       throws IOException

Method called after value has been serialized, to close any scopes opened by earlier matching call to writeTypePrefixForScalar(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator). Actual action to take may depend on various factors, but has to match with action writeTypePrefixForScalar(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator) did (close array or object; or do nothing).

Throws:

IOException

writeTypeSuffixForObject

public abstract void writeTypeSuffixForObject(Object value,
                                              JsonGenerator jgen)
                                       throws IOException

Method called after value has been serialized, to close any scopes opened by earlier matching call to writeTypePrefixForObject(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator). It needs to write closing END_OBJECT marker, and any other decoration that needs to be matched.

Throws:

IOException

writeTypeSuffixForArray

public abstract void writeTypeSuffixForArray(Object value,
                                             JsonGenerator jgen)
                                      throws IOException

Method called after value has been serialized, to close any scopes opened by earlier matching call to writeTypeSuffixForScalar(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator). It needs to write closing END_ARRAY marker, and any other decoration that needs to be matched.

Throws:

IOException

writeTypePrefixForScalar

public void writeTypePrefixForScalar(Object value,
                                     JsonGenerator jgen,
                                     Class<?> type)
                              throws IOException

Alternative version of the prefix-for-scalar method, which is given actual type to use (instead of using exact type of the value); typically a super type of actual value type

Throws:

IOException

writeTypePrefixForObject

public void writeTypePrefixForObject(Object value,
                                     JsonGenerator jgen,
                                     Class<?> type)
                              throws IOException

Alternative version of the prefix-for-object method, which is given actual type to use (instead of using exact type of the value); typically a super type of actual value type

Throws:

IOException

writeTypePrefixForArray

public void writeTypePrefixForArray(Object value,
                                    JsonGenerator jgen,
                                    Class<?> type)
                             throws IOException

Alternative version of the prefix-for-array method, which is given actual type to use (instead of using exact type of the value); typically a super type of actual value type

Throws:

IOException

writeCustomTypePrefixForScalar

public abstract void writeCustomTypePrefixForScalar(Object value,
                                                    JsonGenerator jgen,
                                                    String typeId)
                                             throws IOException,
                                                    JsonProcessingException

Method called to write initial part of type information for given value, when it will be output as scalar JSON value (not as JSON Object or Array), using specified custom type id instead of calling TypeIdResolver. This means that the context after call can not be that of JSON Object; it may be Array or root context.

Parameters:

value - Value that will be serialized, for which type information is to be written

jgen - Generator to use for writing type information

typeId - Exact type id to use

Throws:

IOException

JsonProcessingException

writeCustomTypePrefixForObject

public abstract void writeCustomTypePrefixForObject(Object value,
                                                    JsonGenerator jgen,
                                                    String typeId)
                                             throws IOException

Method called to write initial part of type information for given value, when it will be output as JSON Object value (not as JSON Array or scalar), using specified custom type id instead of calling TypeIdResolver. This means that context after call must be JSON Object, meaning that caller can then proceed to output field entries.

Parameters:

value - Value that will be serialized, for which type information is to be written

jgen - Generator to use for writing type information

typeId - Exact type id to use

Throws:

IOException

writeCustomTypePrefixForArray

public abstract void writeCustomTypePrefixForArray(Object value,
                                                   JsonGenerator jgen,
                                                   String typeId)
                                            throws IOException

Throws:

IOException

writeCustomTypeSuffixForScalar

public abstract void writeCustomTypeSuffixForScalar(Object value,
                                                    JsonGenerator jgen,
                                                    String typeId)
                                             throws IOException

Throws:

IOException

writeCustomTypeSuffixForObject

public abstract void writeCustomTypeSuffixForObject(Object value,
                                                    JsonGenerator jgen,
                                                    String typeId)
                                             throws IOException

Throws:

IOException

writeCustomTypeSuffixForArray

public abstract void writeCustomTypeSuffixForArray(Object value,
                                                   JsonGenerator jgen,
                                                   String typeId)
                                            throws IOException

Throws:

IOException