Using Joda DateTime in my custom object

[tarchen]

Is there any way to modify the tinyDB class to be able to save a custom object with a DateTime field? I tried adding the following:
`
private class DateTimeSerializer implements JsonSerializer {
public JsonElement serialize(DateTime src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.toString());
}
}

private class DateTimeDeserializer implements JsonDeserializer<DateTime> {
    public DateTime deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        return new DateTime(json.getAsJsonPrimitive().getAsString());
    }
}

public void retrieveGlobalDataFromStorage(Context context) {

// ...

    final GsonBuilder builder = new GsonBuilder();
    builder.registerTypeAdapter(DateTime.class, new DateTimeSerializer());
    builder.registerTypeAdapter(DateTime.class, new DateTimeDeserializer());

    final Gson gson = builder.create();

// ...
}` but I am still getting a fatal exception
Caused by: java.lang.RuntimeException: Failed to invoke public org.joda.time.Chronology() with no args
at com.google.gson.internal.ConstructorConstructor$3.construct(ConstructorConstructor.java:111)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:210)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:129)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:220)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:129)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:220)
at com.google.gson.Gson.fromJson(Gson.java:887)
at com.google.gson.Gson.fromJson(Gson.java:852)
at com.google.gson.Gson.fromJson(Gson.java:801)
at com.google.gson.Gson.fromJson(Gson.java:773)
at dtcj.badgerme.TinyDB.getListObject(TinyDB.java:358)

Thanks for any advice!
Taryn

[kcochibili]

Using this Converter:
https://github.com/gkopff/gson-javatime-serialisers

do something like this JodaOrg/joda-time#294 (comment)

The suggestion above is from a quick google search, I did not test it.