A new chapter: Hive v4 #1225

simc · 2023-08-01T23:21:59Z

Dear Hive Community,

I'd like to apologize for my lack of support and updates for Hive over the past year. Despite this, your commitment to the community has ensured that the package is still in a remarkably good state, and for that, I'm incredibly grateful.

As many of you know, I have spent a lot of time optimizing Isar to be as fast, reliable, and fun to use as possible. However, I recognize that a lot of you truly appreciate the simplicity of Hive. The thought of discontinuing Hive did cross my mind, but I now see a much more constructive way forward:

Over the next several weeks and months, I plan to invest my energy into the development of Hive v4. The primary focus will be to maintain the user-friendly interface and feature set that you've come to love. However, instead of continuing with the custom storage engine that has been causing several issues, we will transition Hive's data storage to Isar.

This significant change comes with several exciting advantages, including support for multiple isolates, significantly improving resource efficiency and reducing startup time, among others. Moreover, this will simplify the maintenance of Hive, ensuring its longevity through sustained support.

I cannot thank you enough for your continued support and use of Hive. Together, let's continue to make it a tool we all love and rely on. 💜

Simon

Zchandev · 2023-08-04T18:04:35Z

Great news!

I love Isar, but I also still use Hive in the same project, because it's just a simple key-value storage.

I use it to store cache, counters, json responses, lists and maps. I don't need complex stuff like indexes and queries, because I already have that data in isar.

themisir · 2023-08-07T22:57:16Z

Hey Simon, thanks for an update! I am wondering what's your plans regarding storage migration. How do you think to handle the transition to make sure existing applications won't lose any data.

Also considering both hive and isar has (or had) their own way of encoding data types, not sure about isar, but hive also have support for writing custom encoders/serializers. What's the plan for migrating them?

simc · 2023-08-09T08:09:53Z

I am wondering what's your plans regarding storage migration.

That's indeed the biggest problem to solve. I think the best approach for now is to let the hive generator generate migration code.

For custom encoders & decoders I didn't find a solution yet. Maybe we can just deprecate them and ask users who rely on them to stay on Hive v2

themisir · 2023-08-09T10:13:55Z

Are you planning to support database queries like Isar does? If so, then it's tough, I don't have an idea to create smooth migration plan.

If not (only key to value lookups), maybe we can continue using the existing hive generated (and custom) encoders to encode structs into byte stream and store it within isar with its respective key.

jamesdixon · 2023-08-11T15:14:57Z

This is really exciting news!

Are you planning to support database queries like Isar does? If so, then it's tough, I don't have an idea to create smooth migration plan.

In my opinion, a migration to Isar as the data store should focus solely on that and leave out advanced functionality that Isar could provide. That simplifies the migration and maintains the simplicity of Hive. If you need more advanced functionality, using Isar directly is likely a better fit.

simc · 2023-08-14T10:01:09Z

Are you planning to support database queries

In my opinion, a migration to Isar as the data store should focus solely on that

Yeah agreed! I think Hive has a good feature set and if someone is looking for queries, Isar should be used directly. The only feature I think would be valuable for Hive is (optional) atomic transactions.

simc · 2023-08-21T23:07:11Z

I merged my work in the main branch. Check it out and provide feedback please 💜

t-kozak · 2023-08-21T23:46:25Z

Hey @simc , that plan sounds great!

I wanted to use Isar but decided to stick with Hive, as Hive supports Flutter on the web. With the migration to Isar as the engine for Hive, will it still work over IndexedDB?

holocronweaver · 2023-08-22T00:06:28Z

This is promising, but I have a few questions.

Is there a list of things that Hive v4 will lack vs. v2?

Will there be a v2 support branch if v4 will not have feature parity?

Also what of Hive v3, is it being abandoned?

BTW, thanks for all this work! Glad to hear Hive will live on in one form or another.

simc · 2023-08-22T12:18:29Z

With the migration to Isar as the engine for Hive, will it still work over IndexedDB?

No. Isar web uses SQLite compiled to WASM and so will Hive.

Is there a list of things that Hive v4 will lack

I don't think there is anything Hive v4 will lack. The API is almost identical with a few minor differences.

Edit: HiveObject and HiveList will be removed.

Also what of Hive v3, is it being abandoned?

To my knowledge Hive v3 was never released as a stable version and I don't have time to maintain it unfortunately.

simc · 2023-08-22T12:18:48Z

I published the first version of Hive v4 and I'd love to hear your feedback

978bobs · 2023-08-23T14:15:18Z

Does "No more code generation" mean that we don't need to reference a generated file like part 'main.g.dart';?

If so sounds pretty good. As a follow-on, does this also hold for Isar 4.0?

t-kozak · 2023-08-24T04:21:45Z

@simc, thanks for reply. Can you confirm that given this issue: isar/isar#1362 (Isar on the web supports only in-memory sqlite), in practice, Hive v4 cannot be used as a persistency service on the web?

simc · 2023-08-24T08:14:08Z

Not right now that's correct @t-kozak. I hope to implement that before a stable release

pishguy · 2023-09-01T17:52:49Z

Because MY_APP depends on hive ^4.0.0 which doesn't match any versions, version solving failed.

You can try the following suggestion to make the pubspec resolve:

Consider downgrading your constraint on hive: flutter pub add hive:^2.2.3

sprimm98 · 2023-09-02T10:00:06Z

@pishguy You can use hive: ^4.0.0-dev.2 to get access to the pre-release :)

jamesdixon · 2023-09-15T19:13:58Z

@simc we're working on testing this and noticed that it's leveraging Isar 4 Alpha. Any timeline on Isar 4 getting to stable? Also, any chance that Hive 4 could leverage Isar 3?

Yetispapa · 2023-09-20T16:03:29Z

Hi @simc,

First of all, I want to express my sincere appreciation for all your hard work on Hive and the dedication you've shown to the community. Hive has been an invaluable tool for me, and I'm excited to see its future unfold with Hive v4.

I'm sure many of us are eager to get our hands on the new Hive v4. Do you have a rough estimate of when we can expect a release candidate or a beta version?

Lastly, cheers from Munich! 🍻

Looking forward to Hive's continued evolution and success.

rivella50 · 2023-10-14T13:10:48Z

@simc Do you have any rough time schedule when a stable release for Hive v4 will be available?

sonysm · 2024-02-06T08:30:55Z

Please make it happen i can't wait to see Hive V4.0.0 official release

Macacoazul01 · 2024-02-17T16:21:02Z

@simc Do you have any rough time schedule when a stable release for Hive v4 will be available?

At the same week US starts using metric system 👀.

giridat · 2024-02-28T15:03:40Z

LGTM!

xxxIxxxx · 2024-06-27T04:37:18Z

flutter: 3.19.6
hive: ^4.0.0-dev.2
isar_flutter_libs: ^4.0.0-dev.14
path_provider: ^2.1.0

static Box  settingBox = Hive.box(name: "setting", maxSizeMiB: 128);

When I call settingBox.clear();, the data is indeed cleared, and after restarting the app, there is no data. However, in the sandbox, the .isar size is 20MB, and I noticed that almost all .isar files are 20MB in size, but I'm sure the data they store is less than 1MB. Why is this happening?

some error

"DbError (12): Cannot allocate memory"

I am sure that the phone has enough RAM and enough disk storage space.

carsh in:

case ERROR_DB_FULL:
       throw DatabaseFullError();
     default:
       final length = IsarCore.b.isar_get_error(IsarCore.stringPtrPtr);
       final ptr = IsarCore.stringPtr;
       if (length != 0 && !ptr.isNull) {
         final error = utf8.decode(ptr.asU8List(length));
         throw DatabaseError(error);

Fethi-Hamdani · 2024-07-26T13:39:39Z

Any updates V4 stable release?

Rexios80 · 2024-07-26T13:47:06Z

For anyone still on v2, I released hive_ce that supports WASM compilation and Sets. Also the hive_ce_generator generates a HiveRegistrar extension so you can register all your adapters in one call (and not forget to register new ones like I used to every single time):

import 'package:your_package/hive_registrar.g.dart';

void main() {
  final path = Directory.current.path;
  Hive
    ..init(path)
    ..registerAdapters();
}

appconsultio · 2024-08-07T16:03:17Z

hive_flutter: ^1.1.0
hive: ^2.2.3

Hive is not persisting data after flutter mobile app gets terminated.. Is there any solution for this ??
@simc

azmasamy · 2024-08-08T15:29:52Z

hive_flutter: ^1.1.0 hive: ^2.2.3

Hive is not persisting data after flutter mobile app gets terminated.. Is there any solution for this ?? @simc

Flutter secured storage

rivella50 · 2024-08-08T16:47:09Z

I switched to objectbox recently.

Rexios80 · 2024-08-08T16:52:26Z

I just use hive_ce since that was easier than migrating to an entirely different storage solution

mrasityilmaz · 2024-08-08T17:15:36Z

I just use hive_ce since that was easier than migrating to an entirely different storage solution

Actually, it's not different, it's just a package with a different name that contains traces of each version of Hive.
I recommend the Hive 4.x.x and my Hive extension https://pub.dev/packages/bee_hive

Also Hive 4.x.x doesn't need any generator.

Rexios80 · 2024-08-08T17:28:20Z

I'm the maintainer of hive_ce so I know what it is. I have many apps that are using Hive v2 in production, and I see no easy way to migrate to v4. Even if there was a way to migrate from v2 to v4, I have little to no faith in the future support of Hive. Please do not recommend using Hive v4 in production applications. I wouldn't even recommend using hive_ce for new projects unless you intend to contribute.

I am aware of Hive v4 not requiring code generation, but you lose the efficient binary storage of Hive v2 which was like... the entire point of choosing Hive over other options...

mrasityilmaz · 2024-08-08T18:38:56Z

I'm the maintainer of hive_ce so I know what it is. I have many apps that are using Hive v2 in production, and I see no easy way to migrate to v4. Even if there was a way to migrate from v2 to v4, I have little to no faith in the future support of Hive. Please do not recommend using Hive v4 in production applications. I wouldn't even recommend using hive_ce for new projects unless you intend to contribute.

I am aware of Hive v4 not requiring code generation, but you lose the efficient binary storage of Hive v2 which was like... the entire point of choosing Hive over other options...

Actually, I'm not fully aware of the advantages of binary storage. But based on my research, I believe the new Hive may be faster than the old one.

Rexios80 · 2024-08-08T18:45:26Z

Actually, I'm not fully aware of the advantages of binary storage. But based on my research, I believe the new Hive may be faster than the old one.

Well it doesn't really matter if it's a dead package

mrasityilmaz · 2024-08-08T18:47:21Z

Actually, I'm not fully aware of the advantages of binary storage. But based on my research, I believe the new Hive may be faster than the old one.

Well it doesn't really matter if it's a dead package

Okay, I respect your decisions.
Good luck

appconsultio · 2024-08-09T03:38:05Z

I switched to objectbox recently.

do you face any issue while application move to terminate state?? on restart does it restore previous save data ??

appconsultio · 2024-08-09T04:00:49Z

I just use hive_ce since that was easier than migrating to an entirely different storage solution

does it keep you data saved when mobile app gets terminated or crash ??

rivella50 · 2024-08-09T04:45:52Z

do you face any issue while application move to terminate state?? on restart does it restore previous save data ??

@appconsultio Sure it does, and tbh i would be suprised if hive wouldn't do that too. Are you sure you're doing everything correctly on app startup?

oscarshaitan · 2024-08-09T08:28:29Z

I'm still using Hive and is working fine after phone restart or crash, the only place I have issues is on web.
@Rexios80 at this point I'm considering moving away from hive. do hive_ce has any improvement for web? I love the binary storage, but if the phone is a budget phone and you have stored a massive Box the app could suffer opening if you open that box in launch.

Rexios80 · 2024-08-09T13:03:34Z

@oscarshaitan
hive_ce supports Flutter web WASM compilation which drastically improves performance.

If you're having issues opening boxes on startup, does making them lazy help?

appconsultio · 2024-08-10T04:18:40Z

hive_flutter: ^1.1.0 hive: ^2.2.3

Hive is not persisting data after flutter mobile app gets terminated.. Is there any solution for this ?? @simc

@simc plz reply how to solve this issue ??

oscarshaitan · 2024-08-10T06:08:49Z

@oscarshaitan hive_ce supports Flutter web WASM compilation which drastically improves performance.

If you're having issues opening boxes on startup, does making them lazy help?

Yes Im thinking on moving some to lazy.

I'm going to join to your discord so I can make more questions there

tomvanoost · 2024-08-16T14:14:49Z

@simc Thank you for all the great work. Any idea when we can expect a release version of Hive v4 based on Isar?
Would it be possible to execute queries on a Hive box using Isar?

vishnuagbly · 2024-09-08T15:22:41Z

I believe @simc has stopped supporting this package. The sad truth of the Open-Source Community is that we do not get paid, and hence the wobbly support for packages.

nhCoder · 2024-10-01T00:43:28Z

RIP peace dear Bees

chunghei0116 · 2024-10-30T09:46:38Z

Can someone suggest alternative since the V4 is dead now.

vizakenjack · 2024-10-30T09:50:21Z

Can someone suggest alternative since the V4 is dead now.

I use Hive Community Edition:
https://pub.dev/packages/hive_ce

chunghei0116 · 2024-10-31T01:33:30Z

Can someone suggest alternative since the V4 is dead now.

I use Hive Community Edition: https://pub.dev/packages/hive_ce

I love the way Hive V4 does, code-gen make the folder a bit messy tbh

Rexios80 · 2024-10-31T02:23:52Z

@chunghei0116
I'm the maintainer of hive_ce

Doesn't Hive v4 still need code-gen from json_serializable to work?

Also I'm making code-gen much better in this PR. With that change, you only need one generated adapters file per project. You can see how it works in the updated README. I'm waiting on feedback from users to release the feature. If you could try it out and put any feedback in a comment on that PR that would be very helpful!

chunghei0116 · 2024-10-31T03:27:17Z

@Rexios80

Thank you for your contribution! I’ll definitely give it a try in my new project. Since I’m currently working on an enterprise project, I need a stable and well-maintained package. Cheers!

Rexios80 · 2024-11-01T00:13:07Z

@chunghei0116

I just benchmarked Hive v2 vs v4 and the results are... not looking good...

Here's the PR for the benchmark if you want to check it out: IO-Design-Team/hive_ce#43

simc added problem An unconfirmed bug. enhancement New feature or request and removed problem An unconfirmed bug. labels Aug 1, 2023

simc pinned this issue Aug 1, 2023

themisir mentioned this issue Aug 10, 2023

Add a method to list all boxes #1230

Closed

p4-k4 mentioned this issue Sep 29, 2023

[web] Hive 4.0.0-dev.2 - issues initializing #1239

Open

themisir mentioned this issue Oct 12, 2023

Update README.md with adapter example #1252

Closed

Namli1 mentioned this issue Jan 30, 2024

Dependency conflict with hive package supabase/supabase-flutter#812

Closed

This comment was marked as resolved.

Sign in to view

murali-shris mentioned this issue Oct 30, 2024

uptake hive 4.x beta version atsign-foundation/at_server#2005

Open

A new chapter: Hive v4 #1225

A new chapter: Hive v4 #1225

Comments

simc commented Aug 1, 2023

Zchandev commented Aug 4, 2023

themisir commented Aug 7, 2023

simc commented Aug 9, 2023

themisir commented Aug 9, 2023 • edited Loading

jamesdixon commented Aug 11, 2023

simc commented Aug 14, 2023 • edited Loading

simc commented Aug 21, 2023

t-kozak commented Aug 21, 2023

holocronweaver commented Aug 22, 2023 • edited Loading

simc commented Aug 22, 2023 • edited Loading

simc commented Aug 22, 2023

978bobs commented Aug 23, 2023

t-kozak commented Aug 24, 2023

simc commented Aug 24, 2023

pishguy commented Sep 1, 2023

sprimm98 commented Sep 2, 2023

jamesdixon commented Sep 15, 2023

Yetispapa commented Sep 20, 2023

rivella50 commented Oct 14, 2023

sonysm commented Feb 6, 2024

Macacoazul01 commented Feb 17, 2024

giridat commented Feb 28, 2024

xxxIxxxx commented Jun 27, 2024

flutter: 3.19.6 hive: ^4.0.0-dev.2 isar_flutter_libs: ^4.0.0-dev.14 path_provider: ^2.1.0

Fethi-Hamdani commented Jul 26, 2024

Rexios80 commented Jul 26, 2024

This comment was marked as resolved.

appconsultio commented Aug 7, 2024 • edited Loading

azmasamy commented Aug 8, 2024

rivella50 commented Aug 8, 2024

Rexios80 commented Aug 8, 2024

mrasityilmaz commented Aug 8, 2024 • edited Loading

Rexios80 commented Aug 8, 2024

mrasityilmaz commented Aug 8, 2024

Rexios80 commented Aug 8, 2024

mrasityilmaz commented Aug 8, 2024

appconsultio commented Aug 9, 2024

appconsultio commented Aug 9, 2024 • edited Loading

rivella50 commented Aug 9, 2024

oscarshaitan commented Aug 9, 2024

Rexios80 commented Aug 9, 2024

appconsultio commented Aug 10, 2024

oscarshaitan commented Aug 10, 2024

tomvanoost commented Aug 16, 2024

vishnuagbly commented Sep 8, 2024

nhCoder commented Oct 1, 2024

chunghei0116 commented Oct 30, 2024

vizakenjack commented Oct 30, 2024

chunghei0116 commented Oct 31, 2024

Rexios80 commented Oct 31, 2024

chunghei0116 commented Oct 31, 2024

Rexios80 commented Nov 1, 2024

themisir commented Aug 9, 2023 •

edited

Loading

simc commented Aug 14, 2023 •

edited

Loading

holocronweaver commented Aug 22, 2023 •

edited

Loading

simc commented Aug 22, 2023 •

edited

Loading

flutter: 3.19.6
hive: ^4.0.0-dev.2
isar_flutter_libs: ^4.0.0-dev.14
path_provider: ^2.1.0

appconsultio commented Aug 7, 2024 •

edited

Loading

mrasityilmaz commented Aug 8, 2024 •

edited

Loading

appconsultio commented Aug 9, 2024 •

edited

Loading