Package org.coliper.ibean.extension

Class GsonSerializerDeserializerForIBeans

java.lang.Object

org.coliper.ibean.extension.GsonSerializerDeserializerForIBeans

All Implemented Interfaces:

JsonDeserializer<GsonSupport>, JsonSerializer<GsonSupport>

public class GsonSerializerDeserializerForIBeans
extends Object
implements JsonSerializer<GsonSupport>, JsonDeserializer<GsonSupport>

JSON serializer/deserializer used with Gson to convert IBeans with extension interface GsonSupport from and to JSON. Three prerequisites need to be fulfilled so that an IBean can be converted to and from JSON with Gson:

• Gson version 2.4 or higher must be found on the classpath.
• IBean must implement extension interface GsonSupport.
• Gson used for convertion needs to have GsonSerializerDeserializerForIBeans added to its configuration.

Following code snippets show an example usage:

 
    IBeanFactory factory = null;

    // Create a Gson JSON converter with IBean serializer/deserializer configured
    final Gson gson = new GsonBuilder().registerTypeHierarchyAdapter(GsonSupport.class,
            new GsonSerializerDeserializerForIBeans(factory)).create();
    
    // BeanType must extend interface GsonSupport
    BeanType someBean = factory.create(BeanType.class);
    
    // Serialize and deserialize IBean
    String json = gson.toJson(someBean);
    BeanType deserializedBean = gson.fromJson(json, BeanType.class);
 
 

Constructor Summary

Constructors

Constructor	Description
GsonSerializerDeserializerForIBeans()	Creates a new GsonSerializerDeserializerForIBeans with no IBeanFactory preset.
GsonSerializerDeserializerForIBeans(IBeanFactory iBeanFactory)	Creates a new GsonSerializerDeserializerForIBeans with a given IBeanFactory preset.

Method Summary

Modifier and Type	Method	Description
GsonSupport	deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
JsonElement	serialize(GsonSupport src, Type typeOfSrc, JsonSerializationContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

GsonSerializerDeserializerForIBeans

public GsonSerializerDeserializerForIBeans()

Creates a new GsonSerializerDeserializerForIBeans with no IBeanFactory preset. In this case default factory in IBean will be used for creation of new IBeans during deserializaion.

GsonSerializerDeserializerForIBeans

public GsonSerializerDeserializerForIBeans(IBeanFactory iBeanFactory)

Creates a new GsonSerializerDeserializerForIBeans with a given IBeanFactory preset. In this case the provided factory will be used for creation of new IBeans during deserializaion.

Parameters:

iBeanFactory - the factory to use by the deserializer to create new IBeans. If null default factory in IBean will be used for creation of new IBeans during deserializaion.

Method Detail

deserialize

public GsonSupport deserialize(JsonElement json,
                               Type typeOfT,
                               JsonDeserializationContext context)
                        throws JsonParseException

Specified by:

deserialize in interface JsonDeserializer<GsonSupport>

Throws:

JsonParseException

serialize

public JsonElement serialize(GsonSupport src,
                             Type typeOfSrc,
                             JsonSerializationContext context)

Specified by:

serialize in interface JsonSerializer<GsonSupport>