org.javers.json

Class JsonConverter

java.lang.Object

org.javers.json.JsonConverter

public class JsonConverter
extends Object

Javers is meant to support various persistence stores for any kind of client's data, hence we use JSON format to serialize/deserialize client's domain objects.

Javers uses Gson library which provides neat and pretty JSON representation for well known Java types.

But sometimes Gson's default JSON representation isn't appropriate for your domain model. This is often the case when dealing with Value Objects like Date or Money.

If so, you can easily customize Javers serialization/deserialization behaviour by providing plugins for each of your custom type. Javers accepts several kind of plugins:

• BasicStringTypeAdapter - extend it if you need to represent value as single String and don't want to deal with JSON API. For implementation example see LocalDateTimeTypeAdapter.
• JsonTypeAdapter - use it if you need full control over JSON conversion
• native Gson TypeAdapter //TODO not implemented yet

Javers provides JsonTypeAdapter's for some well known Value Object like LocalDateTime. Those adapters are included by default in Javers setup, see BUILT_IN_ADAPTERS
//TODO add nullSafe story

Author:

bartosz walacik

Constructor Summary

Constructors

Constructor and Description
JsonConverter()
JsonConverter(Collection<JsonTypeAdapter> customAdapters)

Method Summary

Methods

Modifier and Type	Method and Description
<T> T	fromJson(String json, Class<T> expectedType)
String	toJson(Object value)
String	toJson(Object value, Type requiredType)

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonConverter

public JsonConverter()

JsonConverter

public JsonConverter(Collection<JsonTypeAdapter> customAdapters)

Method Detail

toJson

public String toJson(Object value)

toJson

public String toJson(Object value,
            Type requiredType)

fromJson

public <T> T fromJson(String json,
             Class<T> expectedType)