org.javers.core.json

Interface JsonTypeAdapter<T>

Type Parameters:

T - user type, mapped to ValueType or CustomType

All Known Implementing Classes:

BasicStringTypeAdapter, CdoSnapshotStateTypeAdapter, JsonTypeAdapterTemplate

public interface JsonTypeAdapter<T>

Javers abstraction over native Gson TypeAdapter.

Implement JsonTypeAdapter to add custom JSON serialization and deserialization behaviour, depending on your domain model.

ValueType or CustomType eligible for deserialization should have a no-argument constructor (public or private).

Implementation shouldn't take care about nulls (nulls are handled by Gson engine)

For implementation example see org.javers.core.json.typeadapter.joda.LocalDateTimeTypeAdapter.

See Also:

JsonConverter

Method Summary

Modifier and Type	Method and Description
T	fromJson(com.google.gson.JsonElement json, com.google.gson.JsonDeserializationContext jsonDeserializationContext)
java.util.List<java.lang.Class>	getValueTypes() Target class.
com.google.gson.JsonElement	toJson(T sourceValue, com.google.gson.JsonSerializationContext jsonSerializationContext)

Method Detail

fromJson

T fromJson(com.google.gson.JsonElement json,
           com.google.gson.JsonDeserializationContext jsonDeserializationContext)

Parameters:

json - not null and not JsonNull

jsonDeserializationContext - use it to invoke default deserialization on the specified object

toJson

com.google.gson.JsonElement toJson(T sourceValue,
                                   com.google.gson.JsonSerializationContext jsonSerializationContext)

Parameters:

sourceValue - not null

jsonSerializationContext - use it to invoke default serialization on the specified object

getValueTypes

java.util.List<java.lang.Class> getValueTypes()

Target class. If adapter is designed to handle single class, return List with one element. If adapter is polymorfic, return list captaining all supported clazz