Class GsonJsonObjectUnmarshaller<T>

java.lang.Object

org.springframework.batch.infrastructure.item.json.GsonJsonObjectUnmarshaller<T>

Type Parameters:

T - type of objects to unmarshal

All Implemented Interfaces:

JsonObjectUnmarshaller<T>

public class GsonJsonObjectUnmarshaller<T>
extends Object
implements JsonObjectUnmarshaller<T>

A json object unmarshaller that uses Google Gson to unmarshal a json representation into an object.

Since:

6.1

Author:

Mahmoud Ben Hassine

Constructor Summary

Constructors

Constructor	Description
GsonJsonObjectUnmarshaller(com.google.gson.Gson gson, com.google.gson.reflect.TypeToken<T> type)	Create a new GsonJsonObjectUnmarshaller with the provided Gson.
GsonJsonObjectUnmarshaller(com.google.gson.Gson gson, Class<T> type)	Create a new GsonJsonObjectUnmarshaller with the provided Gson.
GsonJsonObjectUnmarshaller(com.google.gson.reflect.TypeToken<T> type)	Create a new GsonJsonObjectUnmarshaller with a default Gson.
GsonJsonObjectUnmarshaller(Class<T> type)	Create a new GsonJsonObjectUnmarshaller with a default Gson.

Method Summary

Modifier and Type	Method	Description
T	unmarshal(String json)	Unmarshal the provided json into an object of the target type.

Methods inherited from class Object

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

Constructor Details

GsonJsonObjectUnmarshaller

public GsonJsonObjectUnmarshaller(Class<T> type)

Create a new GsonJsonObjectUnmarshaller with a default Gson.

Parameters:

type - the target type

GsonJsonObjectUnmarshaller

public GsonJsonObjectUnmarshaller(com.google.gson.reflect.TypeToken<T> type)

Create a new GsonJsonObjectUnmarshaller with a default Gson. Use this constructor for parameterized target types, for example new TypeToken<Map<String, Object>>() {}.

Parameters:

type - the target type

GsonJsonObjectUnmarshaller

public GsonJsonObjectUnmarshaller(com.google.gson.Gson gson,
 Class<T> type)

Create a new GsonJsonObjectUnmarshaller with the provided Gson.

Parameters:

gson - the gson object to use

type - the target type

GsonJsonObjectUnmarshaller

public GsonJsonObjectUnmarshaller(com.google.gson.Gson gson,
 com.google.gson.reflect.TypeToken<T> type)

Create a new GsonJsonObjectUnmarshaller with the provided Gson. Use this constructor for parameterized target types, for example new TypeToken<Map<String, Object>>() {}.

Parameters:

gson - the gson object to use

type - the target type

Method Details

unmarshal

public T unmarshal(String json)

Unmarshal the provided json into an object of the target type.

Specified by:

unmarshal in interface JsonObjectUnmarshaller<T>

Parameters:

json - the json representation of the object

Returns:

the unmarshalled object

Throws:

ParseException - if the json cannot be unmarshalled