Room: Add support for FTS3/FTS4 virtual tables [62356416]

Fixed

Feature Request

Status Update

No update yet.

Description

ch...@beyls.net

created issue #1

Jun 5, 2017 11:57PM

Component used: Room
Version used: 1.0.0-alpha2
Devices/Android versions reproduced on: N/A

Room does not currently support FTS3 or FTS4 virtual tables. These tables are however supported by all Android versions.

Example SQL statement to create one of those tables:

CREATE VIRTUAL TABLE event_titles USING FTS3(title TEXT, subtitle TEXT);

I suggest adding a parameter to the @Entity annotation. Example:

@Entity(tableName = "event_titles", tableType = FTS3)

Those tables only support String columns, in addition to the integer primary key. This can be enforced by Room at compile time.
Then, a DAO can query these columns using full-text search:

@Query("SELECT * FROM event_titles WHERE title MATCH :word")
List<Event> findEvents(String word);

Comments

yb...@google.com <yb...@google.com> Jun 6, 2017 04:18AM

Assigned to yb...@google.com.

[Deleted User] <[Deleted User]> #2Oct 4, 2017 02:23PM

+1, but Deferred does not solve the Observer problem that Rx and LiveData do, so I guess Google should implement Channels instead of LiveData which is actually a Kotlin Coroutine counterpart. Looking forward to this as I've decided not to use RxJava in most of future projects due to Kotlin Coroutines..

ch...@beyls.net <ch...@beyls.net> #3Oct 4, 2017 02:54PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit e78cceffeac28f0028342990c1391c640edf453c
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Wed Nov 28 12:40:24 2018

Room Support for Coroutines

This change allows users to define suspend functions in DAOs with
@Query, @Insert, @Update and @Delete. The new artifact room-coroutine
defines a helper classes for supporting the feature.

Bug: 69474692
Test: ./gradlew room:integration-tests:kotlintestapp:cC
Change-Id: Id73a6b845df3f21f99d14cb6980130dcf3885c81

M buildSrc/src/main/kotlin/androidx/build/PublishDocsRules.kt
A room/compiler/src/main/kotlin/androidx/room/ext/KotlinMetadataElement.kt
D room/compiler/src/main/kotlin/androidx/room/ext/KotlinMetadataProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/ext/element_ext.kt
M room/compiler/src/main/kotlin/androidx/room/ext/javapoet_ext.kt
M room/compiler/src/main/kotlin/androidx/room/processor/DeletionMethodProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/InsertionMethodProcessor.kt
A room/compiler/src/main/kotlin/androidx/room/processor/MethodProcessorDelegate.kt
M room/compiler/src/main/kotlin/androidx/room/processor/PojoProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt
M room/compiler/src/main/kotlin/androidx/room/processor/QueryMethodProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/RawQueryMethodProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/ShortcutMethodProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/UpdateMethodProcessor.kt
A room/compiler/src/main/kotlin/androidx/room/solver/query/result/CoroutineResultBinder.kt
M room/compiler/src/main/kotlin/androidx/room/solver/query/result/PojoRowAdapter.kt
A room/compiler/src/main/kotlin/androidx/room/solver/shortcut/binder/CoroutineDeleteOrUpdateMethodBinder.kt
A room/compiler/src/main/kotlin/androidx/room/solver/shortcut/binder/CoroutineInsertMethodBinder.kt
M room/compiler/src/main/kotlin/androidx/room/solver/shortcut/result/DeleteOrUpdateMethodAdapter.kt
M room/compiler/src/main/kotlin/androidx/room/solver/shortcut/result/InsertMethodAdapter.kt
M room/compiler/src/main/kotlin/androidx/room/vo/RelationCollector.kt
M room/compiler/src/test/kotlin/androidx/room/processor/QueryMethodProcessorTest.kt
A room/coroutines/build.gradle
A room/coroutines/src/main/AndroidManifest.xml
A room/coroutines/src/main/java/androidx/room/CoroutinesRoom.kt
M room/integration-tests/kotlintestapp/build.gradle
M room/integration-tests/kotlintestapp/src/androidTest/java/androidx/room/integration/kotlintestapp/dao/BooksDao.kt
M room/integration-tests/kotlintestapp/src/androidTest/java/androidx/room/integration/kotlintestapp/test/BooksDaoTest.kt
A room/integration-tests/kotlintestapp/src/androidTest/java/androidx/room/integration/kotlintestapp/test/SuspendRoomDispatcherTest.kt
M settings.gradle

https://android-review.googlesource.com/833705

https://goto.google.com/android-sha1/e78cceffeac28f0028342990c1391c640edf453c

ro...@gmail.com <ro...@gmail.com> #4Oct 4, 2017 03:36PM

So do you support any Coroutine "observables" like channels? Or these are just one-off suspending calls?

ch...@beyls.net <ch...@beyls.net> #5Oct 4, 2017 03:45PM

For now we'll be just supporting one-off suspend functions in Room 2.1.0-alpha03. Coroutines stream functionality with channels is still a work in progress.

[Deleted User] <[Deleted User]> #6Feb 19, 2018 12:54PM

Relating to the original request, how about allowing a return type of Deferred<LiveData<T>> which suspends until LiveData<T>'s value has been set the first time?

ch...@gmail.com <ch...@gmail.com> #7Apr 4, 2018 06:28AM

I just tested out Room 2.1.0-alpha03 and added suspend to all of my functions.... there appears to be an issue with functions that use @Query() and UPDATE and DELETE queries. Examples:

Code Example 1:
@Query("DELETE FROM individual")
suspend fun deleteAll()
Error:
Deletion methods must either return void or return int (the number of deleted rows).

Code Example 2:
@Query("UPDATE individual SET firstName = :firstName WHERE id = :id")
suspend fun updateFirstName(id: Long, firstName: String)
Error:
Not sure how to convert a Cursor to this method's return type (kotlin.Unit).

yb...@google.com <yb...@google.com> #8Apr 4, 2018 06:37AM

Async return types with @Query that perform UPDATE, DELETE or INSERT are not yet supported. This also applies to coroutines. We are actively working on adding this for the next alpha of 2.1.0. Subscribe to the bug for updates:

https://issuetracker.google.com/issues/120227284

ch...@gmail.com <ch...@gmail.com> #9Apr 4, 2018 06:44AM

Hello.
Any updates on returning Channel<T> from DAO?
Will contributions be accepted for that feature?

mm...@commonsware.com <mm...@commonsware.com> #10Apr 4, 2018 10:45AM

Channels are experimental right now so we probably want to wait until it is stable.

yb...@google.com <yb...@google.com> #11Apr 4, 2018 04:15PM

Channels +1

zh...@gmail.com <zh...@gmail.com> #12Jul 3, 2018 10:16AM

Marking as fix since core coroutines are supported in 2.1, in the mean time we'll keep an eye on the Channels API to potentially support it once its upgraded out of experimental.

https://issuetracker.google.com/issues/127328278

sa...@gmail.com <sa...@gmail.com> #13Jul 20, 2018 02:54AM

Is it expected that we still have to ensure that suspended functions aren't dispatched from the main thread?
The first call (eg `final SupportSQLiteStatement _stmt = __preparedStmtOfDeleteAll.acquire();`) is not wrapped in a callable and can't be done on the ui thread, so we still have to wrap suspensions with our own context.

da...@google.com <da...@google.com> Jul 24, 2018 07:52PM

Reassigned to da...@google.com.

pa...@gmail.com <pa...@gmail.com> #14Aug 2, 2018 10:20AM

Kotlinx.coroutines 1.2 released with cold stream abstraction Flow:

https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-flow/index.html

It's in "preview" status, but maybe we also could expect some experimental version of Room with Flow support for observable requests

ap...@google.com <ap...@google.com> #15Aug 22, 2018 06:19PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit 07f547ca76ad20790b51b52bf969d45b6070295a
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Mon Aug 20 13:24:31 2018

Room FTS Support - Annotations

Created Fts3Entity & Fts4Entity annotations to declare a class as an
entity of an FTS table. FTS options are supported through annotation
parameters.

Bug: 62356416
Test: N/A
Change-Id: Ic627e38fd3ee5b1138146c2d1fd69e2a2f1365a1

M room/common/api/current.txt
A room/common/src/main/java/androidx/room/Fts3Entity.java
A room/common/src/main/java/androidx/room/Fts4Entity.java
A room/common/src/main/java/androidx/room/FtsOptions.java

https://android-review.googlesource.com/735152

https://goto.google.com/android-sha1/07f547ca76ad20790b51b52bf969d45b6070295a

ap...@google.com <ap...@google.com> #16Aug 22, 2018 10:00PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit 94867f06a611c3ada3dc95aa394d9e8485be2db5
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Mon Aug 20 13:38:26 2018

Room FTS Support - Processor

Created FtsEntityProcessor to process classes annotated with @FtsEntity.
EntityProcessor & FtsEntityProcessor now implement a common interface
BaseEntityProcessor that will either create the Entity or FtsEntity
value object based on the element annotation. FtsEntity extends Entity
which keep intact most of the Entity class reference around the compiler
code .

Created migration bundle class for FtsEntity to later handle migration.

Bug: 62356416
Test: ./gradlew room:room-compiler:test \
room:integration-tests:testapp:cC

Change-Id: I867635165b7e1dcb37806273c1c097fa4f450408

M room/compiler/src/main/kotlin/androidx/room/ext/element_ext.kt
M room/compiler/src/main/kotlin/androidx/room/parser/SqlParser.kt
A room/compiler/src/main/kotlin/androidx/room/processor/BaseEntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/DatabaseProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/FieldProcessor.kt
A room/compiler/src/main/kotlin/androidx/room/processor/FtsTableEntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt
M room/compiler/src/main/kotlin/androidx/room/processor/RawQueryMethodProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/ShortcutMethodProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/ShortcutParameterProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/TableEntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/solver/TypeAdapterStore.kt
M room/compiler/src/main/kotlin/androidx/room/vo/Entity.kt
A room/compiler/src/main/kotlin/androidx/room/vo/FtsEntity.kt
A room/compiler/src/main/kotlin/androidx/room/vo/FtsOptions.kt
A room/compiler/src/main/kotlin/androidx/room/vo/LanguageId.kt
M room/compiler/src/main/kotlin/androidx/room/vo/Pojo.kt
M room/compiler/src/test/kotlin/androidx/room/processor/BaseEntityParserTest.kt
A room/compiler/src/test/kotlin/androidx/room/processor/BaseFtsEntityParserTest.kt
M room/compiler/src/test/kotlin/androidx/room/processor/FieldProcessorTest.kt
A room/compiler/src/test/kotlin/androidx/room/processor/Fts3TableEntityProcessorTest.kt
A room/compiler/src/test/kotlin/androidx/room/processor/Fts4TableEntityProcessorTest.kt
M room/compiler/src/test/kotlin/androidx/room/processor/PojoProcessorTest.kt
M room/compiler/src/test/kotlin/androidx/room/processor/TableEntityProcessorTest.kt
M room/compiler/src/test/kotlin/androidx/room/testing/test_util.kt
M room/compiler/src/test/kotlin/androidx/room/verifier/DatabaseVerifierTest.kt
M room/compiler/src/test/kotlin/androidx/room/vo/EntityTest.kt
A room/compiler/src/test/kotlin/androidx/room/vo/FtsEntityTest.kt
M room/integration-tests/autovaluetestapp/src/androidTest/java/androidx/room/integration/autovaluetestapp/TestDatabase.java
A room/integration-tests/autovaluetestapp/src/androidTest/java/androidx/room/integration/autovaluetestapp/vo/Mail.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/TestDatabase.java
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/dao/MailDao.java
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/FtsTableTest.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/TestDatabaseTest.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/TestUtil.java
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/vo/Mail.java
M room/migration/src/main/java/androidx/room/migration/bundle/EntityBundle.java
A room/migration/src/main/java/androidx/room/migration/bundle/FtsEntityBundle.java
A room/migration/src/main/java/androidx/room/migration/bundle/FtsOptionsBundle.java

https://android-review.googlesource.com/735153

https://goto.google.com/android-sha1/94867f06a611c3ada3dc95aa394d9e8485be2db5

ap...@google.com <ap...@google.com> #17Aug 22, 2018 10:58PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit 82c5c2d2588cb443aa44ebdf9549a3945aac7153
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Tue Aug 21 11:28:45 2018

Room FTS Support - BaseEntityProcessor Rename

Rename BaseEntityProcessor to EntityProcessor. This is done in a
separate commit than the renaming of EntityProcessor to
TableEntityProcessor so that we don't lose git history and it properly
shows as a rename and not an add / remove change.

Bug: 62356416
Test: N/A
Change-Id: I8f7f7e3d64453856cd062a956203b89ed1450cc5

M room/compiler/src/main/kotlin/androidx/room/processor/EntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/FtsTableEntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/TableEntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/vo/Pojo.kt

https://android-review.googlesource.com/735894

https://goto.google.com/android-sha1/82c5c2d2588cb443aa44ebdf9549a3945aac7153

ap...@google.com <ap...@google.com> #18Aug 23, 2018 04:46PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit ff5d15a5e9aca547eb6a6756fb11aec0186e6a64
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Mon Aug 20 13:42:42 2018

Room FTS Support - InvalidationTracker

Updated InvalidationTracker to support adding triggers to FTS shadow
tables based on a lookup map provided. This enables reactive return
types for virtual table entities such as FTS.

Bug: 62356416
Test: ./gradlew room:room-compiler:test \
room:room-runtime:test \
room:integration-tests:testapp:cC
Change-Id: Ib8b2ac7b72e7ad6e170043b57035cf91f052ddf9

M room/compiler/src/main/kotlin/androidx/room/writer/DatabaseWriter.kt
M room/compiler/src/test/data/databasewriter/output/ComplexDatabase.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/LiveDataQueryTest.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/RxJava2Test.java
M room/runtime/src/main/java/androidx/room/InvalidationTracker.java
M room/runtime/src/test/java/androidx/room/InvalidationTrackerTest.java

https://android-review.googlesource.com/735154

https://goto.google.com/android-sha1/ff5d15a5e9aca547eb6a6756fb11aec0186e6a64

ap...@google.com <ap...@google.com> #19Aug 30, 2018 11:01PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit 8cce609814cb86d4a5ddeafefc07f7a0d07b841a
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Mon Aug 20 13:58:55 2018

Room FTS Support - Migration

Added fts entity migration validator that uses the sql create statement
for validation. This is necessary since fts options are not stored in
any public metadata table nor are available through any known pragma.

Created a FtsTableInfoValidatorWriter that will generate the code that
uses FtsTableInfo to get the create sql from sqlite_master so that FTS
options can be parsed and compared. TableInfoValidationWriter and
FtsTableInfoValidatorWriter now implement a common interface named
ValidationWriter that counts statement to be written.

Added a TypeAdapterFactory to SchemaBundle's GSON instance so that both
FtsEntityBundle and EntityBundle can be deserialized from the schema
json file.

Bug: 62356416
Test: ./gradlew room:room-compiler:test \
room:integration-tests:testapp:cC

Change-Id: I34c4d0206ef75f47e1541f7c1f0543c0f2b1e853

M room/compiler/src/main/kotlin/androidx/room/ext/javapoet_ext.kt
M room/compiler/src/main/kotlin/androidx/room/vo/FtsOptions.kt
A room/compiler/src/main/kotlin/androidx/room/writer/FtsTableInfoValidationWriter.kt
M room/compiler/src/main/kotlin/androidx/room/writer/SQLiteOpenHelperWriter.kt
M room/compiler/src/main/kotlin/androidx/room/writer/TableInfoValidationWriter.kt
A room/compiler/src/main/kotlin/androidx/room/writer/ValidationWriter.kt
M room/compiler/src/test/kotlin/androidx/room/vo/FtsEntityTest.kt
A room/integration-tests/testapp/schemas/androidx.room.integration.testapp.migration.FtsMigrationTest.FtsMigrationDb/1.json
A room/integration-tests/testapp/schemas/androidx.room.integration.testapp.migration.FtsMigrationTest.FtsMigrationDb/2.json
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/migration/FtsMigrationTest.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/FtsTableTest.java
M room/migration/src/main/java/androidx/room/migration/bundle/SchemaBundle.java
A room/runtime/src/main/java/androidx/room/util/FtsTableInfo.java
A room/runtime/src/test/java/androidx/room/util/FtsTableInfoTest.java
M room/testing/src/main/java/androidx/room/testing/MigrationTestHelper.java

https://android-review.googlesource.com/735155

https://goto.google.com/android-sha1/8cce609814cb86d4a5ddeafefc07f7a0d07b841a

ap...@google.com <ap...@google.com> #20Sep 6, 2018 02:23AM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit 641db546c6439004e83fb393e6ee5d2b6cf7b193
Author: Daniel Santiago Rivera <danysantiago@google.com>
Date: Thu Aug 30 15:05:50 2018

Room FTS Support - External Content

Support the content= FTS option in external content mode only. This
option allows users to specify another @Entity class in the FTS
annotation. The specified entity table will be used as content instead
of the FTS table creating its own content table.

To keep tables in sync as recommended by the SQLite documentation, Room
creates sync triggers so that all write operations are only done in the
reference table, avoiding bad indexed data in the FTS table due to the
user not performing write operations in both tables.

Bug: 62356416
Test: ./gradlew room:room-compiler:test \
room:room-migration:test \
room:integration-tests:testapp:cC

Change-Id: I26073295193618b211cc48e30aa8824b5130ed8e

M room/common/src/main/java/androidx/room/Fts4Entity.java
M room/compiler/src/main/kotlin/androidx/room/processor/DatabaseProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/FtsTableEntityProcessor.kt
M room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt
M room/compiler/src/main/kotlin/androidx/room/vo/FtsEntity.kt
M room/compiler/src/main/kotlin/androidx/room/vo/FtsOptions.kt
M room/compiler/src/main/kotlin/androidx/room/writer/FtsTableInfoValidationWriter.kt
M room/compiler/src/main/kotlin/androidx/room/writer/SQLiteOpenHelperWriter.kt
M room/compiler/src/test/data/databasewriter/output/ComplexDatabase.java
M room/compiler/src/test/kotlin/androidx/room/processor/DatabaseProcessorTest.kt
M room/compiler/src/test/kotlin/androidx/room/processor/Fts4TableEntityProcessorTest.kt
M room/compiler/src/test/kotlin/androidx/room/vo/FtsEntityTest.kt
M room/integration-tests/testapp/schemas/androidx.room.integration.testapp.migration.FtsMigrationTest.FtsMigrationDb/1.json
M room/integration-tests/testapp/schemas/androidx.room.integration.testapp.migration.FtsMigrationTest.FtsMigrationDb/2.json
A room/integration-tests/testapp/schemas/androidx.room.integration.testapp.migration.FtsMigrationTest.FtsMigrationDb/3.json
A room/integration-tests/testapp/schemas/androidx.room.integration.testapp.migration.FtsMigrationTest.FtsMigrationDb/4.json
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/FtsTestDatabase.java
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/dao/SongDao.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/migration/FtsMigrationTest.java
M room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/FtsTableTest.java
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/vo/Song.java
A room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/vo/SongDescription.java
M room/migration/build.gradle
M room/migration/src/main/java/androidx/room/migration/bundle/DatabaseBundle.java
M room/migration/src/main/java/androidx/room/migration/bundle/FtsEntityBundle.java
M room/migration/src/main/java/androidx/room/migration/bundle/FtsOptionsBundle.java
M room/migration/src/main/java/androidx/room/migration/bundle/SchemaBundle.java
A room/migration/src/test/java/androidx/room/migration/bundle/DatabaseBundleTest.java
M room/runtime/src/main/java/androidx/room/RoomOpenHelper.java
M room/runtime/src/main/java/androidx/room/util/DBUtil.java

https://android-review.googlesource.com/742701

https://goto.google.com/android-sha1/641db546c6439004e83fb393e6ee5d2b6cf7b193

da...@google.com <da...@google.com> #21Sep 6, 2018 07:38PM

Marked as fixed.

This feature will be available in Room 2.1.0

[Deleted User] <[Deleted User]> #22Oct 10, 2018 02:27PM

Hi, I have a problem with the Fts4 annotation, when I mark the Entity class with the Fts4 annotation, my binding classes are not generated

yb...@google.com <yb...@google.com> #23Oct 10, 2018 07:12PM

can you please file a new bug with more details on what is wrong with it?
A sample app that reproduces would make it much better.
Thanks.

sr...@gmail.com <sr...@gmail.com> #24Nov 3, 2018 10:39AM

Hi,
Is there an example to show how how to use this in an entity? I was trying to look for test code which could help but did not find any annotation usage.

thanks

sr...@gmail.com <sr...@gmail.com> #25Nov 3, 2018 02:20PM

I found the example in 'SongDescription' class, I also tried it, it works for me.

thanks a lot!!

yb...@google.com <yb...@google.com> #26Nov 5, 2018 02:58PM

We are updating the docs so should be available soon.
Meanwhile, the FTS integration test class might give some directions:

https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/FtsTableTest.java

da...@gmail.com <da...@gmail.com> #27Nov 5, 2018 06:52PM

#25 can you post a link to the "SongDescription" class you're talking about? Can't find it anywhere :-(

da...@google.com <da...@google.com> #28Nov 5, 2018 07:00PM

SongDescription.java can be found in the AOSP examples:

https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/vo/SongDescription.java

da...@google.com <da...@google.com> #29Nov 5, 2018 10:02PM

Note that we also have FTS usage examples in the GitHub demos:

https://github.com/googlesamples/android-architecture-components/blob/master/BasicSample/app/src/main/java/com/example/android/persistence/db/entity/ProductFtsEntity.java

xm...@gmail.com <xm...@gmail.com> #30Nov 15, 2018 12:21PM

When support icu Tokenizer?

to...@gmail.com <to...@gmail.com> #31Aug 20, 2019 12:50PM

Is there any plan support icu tokenizer?

ji...@gmail.com <ji...@gmail.com> #32Nov 4, 2019 01:47PM

It seems that the icu tokenizer is still not supported in version 2.2.1