com.absio.util

Class JsonHelper

java.lang.Object

com.absio.util.JsonHelper

public class JsonHelper
extends Object

This is a helper class for converting objects to and from JSON

Constructor Summary

Constructors

Constructor and Description
JsonHelper() Default constructor creates the helper with "prettyPrinting" (carriage returns and indentation) and nulls not serialized (when serialized you see the null values in the JSON).
JsonHelper(boolean prettyPrinting, boolean serializeNulls) Create the helper with the given prettyPrinting and serializeNull settings.

Method Summary

Modifier and Type	Method and Description
<T> T	fromJson(com.google.gson.JsonElement json, Class<T> classOfT) Converts the given json element into an object of the given class.
<T> T	fromJson(String json, Class<T> classOfT) Converts the given json into an object of the given class.
<T> T	fromJson(String json, Type typeOfT) Converts the given json into an object of the given type.
protected com.google.gson.Gson	getGson()
protected void	registerTypeAdapters(com.google.gson.GsonBuilder builder)
String	toJson(Object object) Converts the given object into a JSON string.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonHelper

public JsonHelper()

Default constructor creates the helper with "prettyPrinting" (carriage returns and indentation) and nulls not serialized (when serialized you see the null values in the JSON).

JsonHelper

public JsonHelper(boolean prettyPrinting,
                  boolean serializeNulls)

Create the helper with the given prettyPrinting and serializeNull settings.

Parameters:

prettyPrinting - true when you want carriages returns and indentation in the JSON output

serializeNulls - true when you want to see null values in the JSON output

Method Detail

fromJson

public <T> T fromJson(com.google.gson.JsonElement json,
                      Class<T> classOfT)

Converts the given json element into an object of the given class.

Type Parameters:

T - the type of object to be created

Parameters:

json - the json element to convert

classOfT - the class type to convert the element into

Returns:

the converted object

fromJson

public <T> T fromJson(String json,
                      Type typeOfT)

Converts the given json into an object of the given type.

Type Parameters:

T - the type of the object to create

Parameters:

json - the json to parse

typeOfT - the type of object to create

Returns:

the converted object

fromJson

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

Converts the given json into an object of the given class.

Type Parameters:

T - the type of the object to create

Parameters:

json - the json to parse

classOfT - the class type to convert the json into

Returns:

the converted object

getGson

protected com.google.gson.Gson getGson()

registerTypeAdapters

protected void registerTypeAdapters(com.google.gson.GsonBuilder builder)

toJson

public String toJson(Object object)

Converts the given object into a JSON string.

Parameters:

object - the object to convert

Returns:

the json representation of the object