Package org.codehaus.jackson.map

Class TypeSerializer

java.lang.Object

org.codehaus.jackson.map.TypeSerializer

Direct Known Subclasses:

TypeSerializerBase

public abstract class TypeSerializer
extends java.lang.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.

Since:

1.5

Author:

tatus

Constructor Summary

Constructors

Constructor	Description
TypeSerializer()

Method Summary

Modifier and Type	Method	Description
abstract java.lang.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	writeTypePrefixForArray(java.lang.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(java.lang.Object value, JsonGenerator jgen, java.lang.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(java.lang.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(java.lang.Object value, JsonGenerator jgen, java.lang.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(java.lang.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(java.lang.Object value, JsonGenerator jgen, java.lang.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(java.lang.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, org.codehaus.jackson.JsonGenerator).
abstract void	writeTypeSuffixForObject(java.lang.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, org.codehaus.jackson.JsonGenerator).
abstract void	writeTypeSuffixForScalar(java.lang.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, org.codehaus.jackson.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

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 java.lang.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(java.lang.Object value,
                                              JsonGenerator jgen)
                                       throws java.io.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). 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:

java.io.IOException

JsonProcessingException

writeTypePrefixForObject

public abstract void writeTypePrefixForObject(java.lang.Object value,
                                              JsonGenerator jgen)
                                       throws java.io.IOException,
                                              JsonProcessingException

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:

java.io.IOException

JsonProcessingException

writeTypePrefixForArray

public abstract void writeTypePrefixForArray(java.lang.Object value,
                                             JsonGenerator jgen)
                                      throws java.io.IOException,
                                             JsonProcessingException

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:

java.io.IOException

JsonProcessingException

writeTypeSuffixForScalar

public abstract void writeTypeSuffixForScalar(java.lang.Object value,
                                              JsonGenerator jgen)
                                       throws java.io.IOException,
                                              JsonProcessingException

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

Throws:

java.io.IOException

JsonProcessingException

writeTypeSuffixForObject

public abstract void writeTypeSuffixForObject(java.lang.Object value,
                                              JsonGenerator jgen)
                                       throws java.io.IOException,
                                              JsonProcessingException

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

Throws:

java.io.IOException

JsonProcessingException

writeTypeSuffixForArray

public abstract void writeTypeSuffixForArray(java.lang.Object value,
                                             JsonGenerator jgen)
                                      throws java.io.IOException,
                                             JsonProcessingException

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

Throws:

java.io.IOException

JsonProcessingException

writeTypePrefixForScalar

public void writeTypePrefixForScalar(java.lang.Object value,
                                     JsonGenerator jgen,
                                     java.lang.Class<?> type)
                              throws java.io.IOException,
                                     JsonProcessingException

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:

java.io.IOException

JsonProcessingException

Since:

1.8

writeTypePrefixForObject

public void writeTypePrefixForObject(java.lang.Object value,
                                     JsonGenerator jgen,
                                     java.lang.Class<?> type)
                              throws java.io.IOException,
                                     JsonProcessingException

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:

java.io.IOException

JsonProcessingException

Since:

1.8

writeTypePrefixForArray

public void writeTypePrefixForArray(java.lang.Object value,
                                    JsonGenerator jgen,
                                    java.lang.Class<?> type)
                             throws java.io.IOException,
                                    JsonProcessingException

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:

java.io.IOException

JsonProcessingException

Since:

1.8