implement room database

app/build.gradle

@@ -45,5 +45,9 @@ dependencies {
     annotationProcessor 'com.google.dagger:dagger-android-processor:2.11'
     implementation 'com.google.dagger:dagger-android:2.11'
     compileOnly 'javax.annotation:jsr250-api:1.0'
+
+    // Room
+    implementation 'android.arch.persistence.room:runtime:1.0.0'
+    annotationProcessor 'android.arch.persistence.room:compiler:1.0.0'
 }
 

app/src/main/java/me/szaki/xkcd/xkcdbrowser/XKCDBrowserApplication.java

@@ -2,6 +2,7 @@ package me.szaki.xkcd.xkcdbrowser;
 
 import android.app.Application;
 
+import me.szaki.xkcd.xkcdbrowser.database.DBModule;
 import me.szaki.xkcd.xkcdbrowser.ui.UIModule;
 
 public class XKCDBrowserApplication extends Application {
@@ -10,6 +11,6 @@ public class XKCDBrowserApplication extends Application {
     @Override
     public void onCreate() {
         super.onCreate();
-        injector = DaggerXKCDBrowserApplicationComponent.builder().uIModule(new UIModule(this)).build();
+        injector = DaggerXKCDBrowserApplicationComponent.builder().uIModule(new UIModule(this)).dBModule(new DBModule(this)).build();
     }
 }

app/src/main/java/me/szaki/xkcd/xkcdbrowser/XKCDBrowserApplicationComponent.java

@@ -4,6 +4,7 @@ package me.szaki.xkcd.xkcdbrowser;
 import javax.inject.Singleton;
 
 import dagger.Component;
+import me.szaki.xkcd.xkcdbrowser.database.DBModule;
 import me.szaki.xkcd.xkcdbrowser.interactor.InteractorModule;
 import me.szaki.xkcd.xkcdbrowser.interactor.comics.ComicsInteractor;
 import me.szaki.xkcd.xkcdbrowser.ui.UIModule;
@@ -12,7 +13,7 @@ import me.szaki.xkcd.xkcdbrowser.ui.favorites.FavoritesActivity;
 import me.szaki.xkcd.xkcdbrowser.ui.main.MainActivity;
 
 @Singleton
-@Component(modules = {UIModule.class, InteractorModule.class})
+@Component(modules = {UIModule.class, InteractorModule.class, DBModule.class})
 public interface XKCDBrowserApplicationComponent {
 
     void inject(MainActivity mainActivity);

app/src/main/java/me/szaki/xkcd/xkcdbrowser/database/ComicsDAO.java

+package me.szaki.xkcd.xkcdbrowser.database;
+
+import android.arch.persistence.room.Dao;
+import android.arch.persistence.room.Delete;
+import android.arch.persistence.room.Insert;
+import android.arch.persistence.room.Query;
+import android.arch.persistence.room.Update;
+
+import java.util.List;
+
+import me.szaki.xkcd.xkcdbrowser.model.ComicStrip;
+
+@Dao
+public interface ComicsDAO {
+    @Query("SELECT * FROM ComicStrip")
+    public List<ComicStrip> getAllComics();
+
+    @Query("SELECT * FROM ComicStrip WHERE id = :id")
+    public ComicStrip getComic(Long id);
+
+    @Insert
+    public void insertAll(ComicStrip... comic);
+
+    @Update
+    public void update(ComicStrip comic);
+
+    @Delete
+    public void delete(ComicStrip comic);
+}

app/src/main/java/me/szaki/xkcd/xkcdbrowser/database/ComicsDatabase.java

+package me.szaki.xkcd.xkcdbrowser.database;
+
+import android.arch.persistence.room.Database;
+import android.arch.persistence.room.RoomDatabase;
+
+import me.szaki.xkcd.xkcdbrowser.model.ComicStrip;
+
+@Database(entities = {ComicStrip.class}, version = 1)
+public abstract class ComicsDatabase extends RoomDatabase {
+    public abstract ComicsDAO getDAO();
+}
\ No newline at end of file

app/src/main/java/me/szaki/xkcd/xkcdbrowser/database/DBModule.java

+package me.szaki.xkcd.xkcdbrowser.database;
+
+import android.arch.persistence.room.Room;
+import android.content.Context;
+
+import javax.inject.Singleton;
+
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+public class DBModule {
+    private  Context context;
+
+    public DBModule(Context context) {
+        this.context = context;
+    }
+
+    @Provides
+    @Singleton
+    public ComicsDatabase provideComicsDatabase() {
+        return Room.databaseBuilder(this.context, ComicsDatabase.class, "ComicStrip").build();
+    }
+}

app/src/main/java/me/szaki/xkcd/xkcdbrowser/model/ComicStrip.java

+package me.szaki.xkcd.xkcdbrowser.model;
+
+import android.arch.persistence.room.Entity;
+import android.arch.persistence.room.PrimaryKey;
+
+@Entity
+public class ComicStrip {
+    @PrimaryKey(autoGenerate = true)
+    int id;
+    String month;
+    Long num;
+    String link;
+    String year;
+    String news;
+    String safe_title;
+    String transcript;
+    String alt;
+    String img;
+    String title;
+    String day;
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getMonth() {
+        return month;
+    }
+
+    public void setMonth(String month) {
+        this.month = month;
+    }
+
+    public Long getNum() {
+        return num;
+    }
+
+    public void setNum(Long num) {
+        this.num = num;
+    }
+
+    public String getLink() {
+        return link;
+    }
+
+    public void setLink(String link) {
+        this.link = link;
+    }
+
+    public String getYear() {
+        return year;
+    }
+
+    public void setYear(String year) {
+        this.year = year;
+    }
+
+    public String getNews() {
+        return news;
+    }
+
+    public void setNews(String news) {
+        this.news = news;
+    }
+
+    public String getSafe_title() {
+        return safe_title;
+    }
+
+    public void setSafe_title(String safe_title) {
+        this.safe_title = safe_title;
+    }
+
+    public String getTranscript() {
+        return transcript;
+    }
+
+    public void setTranscript(String transcript) {
+        this.transcript = transcript;
+    }
+
+    public String getAlt() {
+        return alt;
+    }
+
+    public void setAlt(String alt) {
+        this.alt = alt;
+    }
+
+    public String getImg() {
+        return img;
+    }
+
+    public void setImg(String img) {
+        this.img = img;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getDay() {
+        return day;
+    }
+
+    public void setDay(String day) {
+        this.day = day;
+    }
+}

app/src/main/java/me/szaki/xkcd/xkcdbrowser/ui/favorites/FavoritesPresenter.java

@@ -3,6 +3,7 @@ package me.szaki.xkcd.xkcdbrowser.ui.favorites;
 
 import javax.inject.Inject;
 
+import me.szaki.xkcd.xkcdbrowser.database.ComicsDatabase;
 import me.szaki.xkcd.xkcdbrowser.interactor.comics.ComicsInteractor;
 import me.szaki.xkcd.xkcdbrowser.ui.Presenter;
 
@@ -10,6 +11,9 @@ public class FavoritesPresenter extends Presenter<FavoritesScreen> {
     @Inject
     ComicsInteractor comicsInteractor;
 
+    @Inject
+    ComicsDatabase db;
+
     @Override
     public void attachScreen(FavoritesScreen screen) {
         super.attachScreen(screen);

app/src/main/java/me/szaki/xkcd/xkcdbrowser/ui/main/MainPresenter.java

@@ -3,6 +3,7 @@ package me.szaki.xkcd.xkcdbrowser.ui.main;
 
 import javax.inject.Inject;
 
+import me.szaki.xkcd.xkcdbrowser.database.ComicsDatabase;
 import me.szaki.xkcd.xkcdbrowser.interactor.comics.ComicsInteractor;
 import me.szaki.xkcd.xkcdbrowser.ui.Presenter;
 
@@ -10,6 +11,9 @@ public class MainPresenter extends Presenter<MainScreen> {
     @Inject
     ComicsInteractor comicsInteractor;
 
+    @Inject
+    ComicsDatabase db;
+
     @Override
     public void attachScreen(MainScreen screen) {
         super.attachScreen(screen);