Android/app/src/main/java/com/moiseum/wolnelektury/storage/BookStorage.java

   1 package com.moiseum.wolnelektury.storage;
   2
   3 import android.app.Application;
   4 import android.support.annotation.Nullable;
   5
   6 import com.moiseum.wolnelektury.BuildConfig;
   7 import com.moiseum.wolnelektury.connection.models.BookModel;
   8 import com.moiseum.wolnelektury.connection.models.BookModel_;
   9 import com.moiseum.wolnelektury.connection.models.MyObjectBox;
  10
  11 import org.greenrobot.eventbus.EventBus;
  12
  13 import java.util.List;
  14
  15 import io.objectbox.Box;
  16 import io.objectbox.BoxStore;
  17 import io.objectbox.android.AndroidObjectBrowser;
  18 import io.objectbox.query.Query;
  19
  20 /**
  21  * @author golonkos
  22  */
  23
  24 public class BookStorage {
  25
  26
  27         public static class BookAddedEvent {
  28         }
  29
  30         public static class BookDeletedEvent {
  31                 private final String slug;
  32
  33                 public BookDeletedEvent(String slug) {
  34                         this.slug = slug;
  35                 }
  36
  37                 public String getSlug() {
  38                         return slug;
  39                 }
  40         }
  41
  42         private BoxStore boxStore;
  43
  44         public BookStorage(Application application) {
  45                 boxStore = MyObjectBox.builder().androidContext(application).build();
  46                 if (BuildConfig.DEBUG) {
  47                         new AndroidObjectBrowser(boxStore).start(application);
  48                 }
  49         }
  50
  51         private Box<BookModel> getBox() {
  52                 return boxStore.boxFor(BookModel.class);
  53         }
  54
  55         public void add(BookModel book) {
  56                 getBox().put(book);
  57                 EventBus.getDefault().post(new BookAddedEvent());
  58         }
  59
  60         public void update(BookModel book) {
  61                 getBox().put(book);
  62         }
  63
  64         @Nullable
  65         public BookModel find(String slug) {
  66                 Query<BookModel> query = getBox().query().equal(BookModel_.slug, slug).build();
  67                 return query.findFirst();
  68         }
  69
  70         public boolean exists(String slug) {
  71                 return find(slug) != null;
  72         }
  73
  74         public void remove(String slug, boolean notify) {
  75                 BookModel book = find(slug);
  76                 if (book != null) {
  77                         getBox().remove(book);
  78                         if (notify) {
  79                                 EventBus.getDefault().post(new BookDeletedEvent(slug));
  80                         }
  81                 }
  82         }
  83
  84         public List<BookModel> all() {
  85                 return getBox().getAll();
  86         }
  87
  88         public void removeAll() {
  89                 getBox().removeAll();
  90         }
  91 }