Realm Japan meetup #8

Realm Objective-C/Swift 0.96
- Null support
- Collection Keypath query
- Improve error handling

Realm Java 0.84
- Null support
- Async queary

Transcript

1. Realm Japan Meetup #8
2. #realm_jp
3. https://github.com/kishikawakatsumi/ kishikawa katsumi http://kishikawakatsumi.hatenablog.com/ Realm
4. Recent Updates
5. Makoto Yamazaki joins Realm ࢁ㟒 ੣͕RealmͷϝϯόʔʹՃΘΓ·ͨ͠
6. Makoto Yamazaki twitter: @zaki50 Realm and https://github.com/zaki50
7. Realm Java 0.84.0 (was 0.82.2)
8. Realm Java 0.83.0 w /6--ϓϩύςΟ
   w ৽͍͠ϑΝΠϧϑΥʔϚοτ
   w ཁϚΠάϨʔγϣϯʢ·ͨ͸!3FRVJSFEΞϊςʔγϣϯʣ
   w ϓϦϛςΟϒϥούʔΫϥεͷαϙʔτ *OUFHFS
   -POH
   ʜ
   w OVMMʹର͢ΔΫΤϦ
   w ूܭʢBWFSBHFɺTVNɺNBYͳͲʣͷมߋ
   w Y@αϙʔτ
   w %BUF
   ܕ͕දݱͰ͖Δൣғͷ֦େ ਫ਼౓͸ඵͷ··
9. NULLϓϩύςΟ (Java) class User extends RealmObject { @PrimaryKey int id; @Required String name; Date birthday; // Nullable Integer age; // Nullable }
10. NULLʹର͢ΔΫΤϦ // isNull()ɺisNotNull()͕֦ு͞Ε·ͨ͠ // RealmObject, RealmListʹՃ͑ͯNullableͳϑΟʔϧυʹ΋࢖༻Մ query.isNull("age"); // ωετͨ͠ΦϒδΣΫτʹ΋࢖༻Մೳʹ query.isNull("friends.age");
11. Ξοϓσʔτ͢ΔͱMigration͕ඞཁʹͳΓ·͢ class User extends RealmObject { @Required // <= ௥Ճ String name; } // ·ͨ͸ Table userTable = realm.getTable(User.class);
 long nameIndex = userTable.getColumnIndex("name");
 userTable.convertColumnToNullable(nameIndex);
    !3FRVJSFEΛࢦఆɺ΋͘͠͸ϚΠάϨʔγϣϯॲཧ
12. Realm Java 0.84.0 w ඇಉظΫΤϦɾτϥϯβΫγϣϯ
    w ࣌ؒͷ͔͔ΔΫΤϦ΍ॻ͖ࠐΈΛόοΫάϥ΢ϯυͰߦ͏
    w JT&NQUZ ɺEJTUJODU
    w ۭจࣈɺۭϦετʢ/6--Ͱͳ͍ʣͷ൑ఆͱɺॏෳΛআ͘
    w JT$MPTFE ɺJT*O5SBOTBDUJPO ɺJT7BMJE
    w ૢ࡞ͷલʹ3FBMN΍ΦϒδΣΫτͷঢ়ଶ͕Θ͔ΔΑ͏ʹ
    w 3FBMN1SJNBSZ,FZ$POTUSBJOU&YDFQUJPOͷಋೖ
13. ඇಉظΫΤϦ RealmResults<User> result = realm.where(User.class) .contains("name", searchText) .findAllAsync(); result.addChangeListener( new RealmChangeListener() { @Override public void onChange() { // ΫΤϦ׬ྃޙɺߋ৽͕͋Δͨͼʹݺͼग़͞Ε·͢ɻ } }); // onStop() ౳Ͱొ࿥ղআΛ๨Εͣʹ result.removeChangeListeners(); // ొ࿥͞Ε͍ͯΔશͯͷϦεφͷొ࿥Λղআ
14. ඇಉظτϥϯβΫγϣϯ realm.executeTransaction(new Realm.Transaction() { @Override public void execute(Realm bgRealm) { // ͜͜ʹߋ৽ॲཧΛهड़ } }, new Realm.Transaction.Callback() { @Override public void onSuccess() { // commit ͕׬ྃͨ࣌͠ } @Override public void onError(Exception e) { // Τϥʔ͕ൃੜͯ͠τϥϯβΫγϣϯ͕ϩʔϧόοΫ͞Εͨ࣌ } });
15. ։ൃத w 3Y+BWBରԠ
    w IUUQTHJUIVCDPNSFBMNSFBMNKBWBQVMM
    w IUUQTHJUIVCDPNSFBMNSFBMNKBWBJTTVFT
    w /FX
    .JHSBUJPO
    "1*
    w IUUQTHJUIVCDPNSFBMNSFBMNKBWBQVMM
    w IUUQTHJUIVCDPNSFBMNSFBMNKBWBQVMM
16. Realm Objective-C/Swift 0.96.2 (was 0.95.2)
17. Realm Objective-C/Swift 0.96.0 w /6--ϓϩύςΟ
    w ৽͍͠ϑΝΠϧϑΥʔϚοτ
    w ཁϚΠάϨʔγϣϯʢ·ͨ͸
    
    SFRVJSFE1SPQFSUJFTʣ
    w ΩʔύεɾίϨΫγϣϯɾΫΤϦ
    w SFBMNPCKFDUT "SUJDMF pMUFS DPNNFOUT!DPVOU
    
    
    w ΤϥʔϋϯυϦϯάͷվળ
    w ίϛοτ࣌ͷΤϥʔΛΩϟονͯ͠෮ؼͰ͖ΔΑ͏ʹ
18. Realm Objective-C/Swift 0.96.2 w 9DPEF
    ͰϏϧυ
19. NULLϓϩύςΟ (Swift) class User: Object { dynamic var id = 0 dynamic var name = "" dynamic var birthday: NSDate? // Nullable let age = RealmOptional<Int>(0) // Nullable override static func primaryKey() -> String? { return "id" } }
20. NULLϓϩύςΟ (Objective-C) @interface User : RLMObject @property NSInteger identifier; @property NSString *name; @property NSDate *birthday; // Nullable @property NSNumber<RLMInt> *age; // Nullable @end @implementation User + (NSString *)primaryKey { return @"identifier"; } + (NSArray *)requiredProperties { return @[@"name"]; } @end
21. Ξοϓσʔτ͢ΔͱMigration͕ඞཁʹͳΓ·͢ Migration is required for object type 'User' due to the following errors: - Property 'birthday' has been made optional. - Property 'name' has been made optional.
22. Ξοϓσʔτ͢ΔͱMigration͕ඞཁʹͳΓ·͢ Migration is required for object type 'User' due to the following errors: - Property 'birthday' has been made optional. - Property 'name' has been made optional.
    SFRVJSFE1SPQFSUJFTΛࢦఆ͢Δ͔ɺϚΠάϨʔγϣϯॲཧΛ ॻ͖·͢ɻ
23. ίϨΫγϣϯɾΩʔύεɾΫΤϦ class Comment: Object { dynamic var id = 0 dynamic var user: User dynamic var text = "" } class Article: Object { dynamic var id = 0 dynamic var title = "" dynamic var text = "" let comments = List<Comment>() } let articles = realm.objects(Article).filter("comments.@count > 0")
24. tvOSରԠʢਐߦதʣ • https://github.com/realm/realm-cocoa/pull/2721 • https://github.com/realm/realm-cocoa/issues/2691
25. Where to find us • $ Realm Japan User Group: facebook.com/groups/realmjp • $ Twitter: twitter.com/realmJapan • GitHub: github.com/realm • $ StackOverflow: ja.stackoverflow.com/questions/tagged/realm • $ Email: help@realm.io • $ Slack: slack.realm.io/
26. Realm Japan User Group $ facebook.com/groups/realmjp
27. Public Realm Slack $ slack.realm.io/
28. Official Twitter/Facebook twitter.com/realm facebook.com/655569387879379
29. Official Web site realm.io/jp
30. Next Realm Meetup • 11/?? • 19:30ʙ • Sansanגࣜձࣾ
31. http://bit.ly/RealmJP_8 ୹͍Ξϯέʔτʹ͝ڠྗ͍ͩ͘͞