use AutoValue class as @CombinedState in example project

example/build.gradle

@@ -40,11 +40,17 @@ dependencies {
     compile project(':lib')
     compile project(':rx-store')
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:24.2.0'
-    compile 'com.android.support:recyclerview-v7:24.2.0'
+    compile 'com.android.support:appcompat-v7:24.2.1'
+    compile 'com.android.support:recyclerview-v7:24.2.1'
     compile 'org.pcollections:pcollections:2.1.2'
 
     compile 'com.facebook.stetho:stetho:1.3.1'
     compile 'com.facebook.stetho:stetho-js-rhino:1.3.1'
     compile 'com.google.code.gson:gson:2.7'
+
+
+    provided 'com.google.auto.value:auto-value:1.3'
+    apt      'com.google.auto.value:auto-value:1.3'
+    provided 'com.ryanharter.auto.value:auto-value-gson:0.4.2'
+    apt 'com.ryanharter.auto.value:auto-value-gson:0.4.2'
 }

example/src/main/java/com/yheriatovych/reductor/example/MyAdapterFactory.java

@@ -0,0 +1,11 @@
+package com.yheriatovych.reductor.example;
+
+import com.google.gson.TypeAdapterFactory;
+import com.ryanharter.auto.value.gson.GsonTypeAdapterFactory;
+
+@GsonTypeAdapterFactory
+public abstract class MyAdapterFactory implements TypeAdapterFactory {
+    public static TypeAdapterFactory create() {
+        return new AutoValueGson_MyAdapterFactory();
+    }
+}

example/src/main/java/com/yheriatovych/reductor/example/ReductorApp.java

@@ -2,14 +2,15 @@
 
 import android.app.Application;
 import android.os.Handler;
+import android.support.annotation.NonNull;
 import android.util.Log;
 import com.facebook.stetho.Stetho;
 import com.facebook.stetho.inspector.console.RuntimeReplFactory;
 import com.facebook.stetho.rhino.JsRuntimeReplFactoryBuilder;
 import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 import com.yheriatovych.reductor.Store;
 import com.yheriatovych.reductor.example.model.AppState;
-import com.yheriatovych.reductor.example.model.AppStateImpl;
 import com.yheriatovych.reductor.example.model.AppStateReducer;
 import com.yheriatovych.reductor.example.reducers.NotesFilterReducerImpl;
 import com.yheriatovych.reductor.example.reducers.NotesListReducer;
@@ -23,7 +24,9 @@
 public class ReductorApp extends Application {
 
     public Store<AppState> store;
-    Gson gson = new Gson();
+    Gson gson = new GsonBuilder()
+            .registerTypeAdapterFactory(MyAdapterFactory.create())
+            .create();
 
     @Override
     public void onCreate() {
@@ -64,7 +67,7 @@ public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] ar
                         Function stringifyFunction = (Function) json.get("stringify", scope);
                         String jsonString = (String) stringifyFunction.call(cx, json, scope, new Object[]{args[0]});
 
-                        final AppState arg = gson.fromJson(jsonString, AppStateImpl.class);
+                        final AppState arg = gson.fromJson(jsonString, AppState.class);
                         Log.d("ReductorApp", arg.toString());
                         handler.post(() -> store.dispatch(SetStateReducer.setStateAction(arg)));
                         return arg;

example/src/main/java/com/yheriatovych/reductor/example/model/AppState.java

@@ -1,12 +1,20 @@
 package com.yheriatovych.reductor.example.model;
 
+import com.google.auto.value.AutoValue;
+import com.google.gson.Gson;
+import com.google.gson.TypeAdapter;
 import com.yheriatovych.reductor.annotations.CombinedState;
 
 import java.util.List;
 
 @CombinedState
-public interface AppState {
-    List<Note> notes();
+@AutoValue
+public abstract class AppState {
+    public abstract List<Note> notes();
 
-    NotesFilter filter();
+    public abstract NotesFilter filter();
+
+    public static TypeAdapter<AppState> typeAdapter(Gson gson) {
+        return new AutoValue_AppState.GsonTypeAdapter(gson);
+    }
 }