AutoValue: Gson Extension

An extension for Google's AutoValue that creates a simple Gson TypeAdapterFactory for each AutoValue annotated object.

Usage

Simply include auto-value-gson in your project and add a public static method to your @AutoValue annotated class returning a TypeAdapter. You can also annotate your properties using @SerializedName to define an alternate name for de/serialization.

@AutoValue public abstract class Foo {
  abstract String bar();
  @SerializedName("Baz") abstract String baz();

  // The public static method returning a TypeAdapter<Foo> is what
  // tells auto-value-gson to create a TypeAdapter for Foo.
  public static TypeAdapter<Foo> typeAdapter(Gson gson) {
    return new AutoValue_Foo.GsonTypeAdapter(gson);
  }
}

final Gson gson = new GsonBuilder()
  .registerTypeAdapterFactory(new AutoValueGsonTypeAdapterFactory())
  .create();

Now build your project and de/serialize your Foo.

In addition to generating implementations of your @AutoValue annotated classes, auto-value-gson also generates an AutoValueGsonTypeAdapterFactory class which you can register with your GsonBuilder to automatically add all of your generated TypeAdapters.

Download

Add a Gradle dependency:

apt 'com.ryanharter.auto.value:auto-value-gson:0.3.2-rc1'

(Using the android-apt plugin)

Snapshots of the latest development version are available in Sonatype's snapshots repository.

License

Copyright 2015 Ryan Harter.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.