androidx.room.rxjava3

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Kotlin |Java

Exceptions

EmptyResultSetException

Thrown by Room when the query in a io.reactivex.rxjava3.core.Single DAO method needs to return a result but the returned result from the database is empty.

Top-level functions summary

Flowable<Any>	createFlowable(database: RoomDatabase, vararg tableNames: String) Creates a Flowable that emits at least once and also re-emits whenever one of the observed tables is updated.
Observable<Any>	createObservable(database: RoomDatabase, vararg tableNames: String) Creates a Observable that emits at least once and also re-emits whenever one of the observed tables is updated.

Top-level properties summary

Any	NOTHING Data dispatched by the publisher created by createFlowable.

Top-level functions

createFlowable

Artifact: androidx.room:room-rxjava3

View Source

Added in 2.3.0

fun createFlowable(database: RoomDatabase, vararg tableNames: String): Flowable<Any>

Creates a Flowable that emits at least once and also re-emits whenever one of the observed tables is updated.

You can easily chain a database operation to downstream of this Flowable to ensure that it re-runs when database is modified.

Since database invalidation is batched, multiple changes in the database may results in just 1 emission.

Parameters
database: RoomDatabase	The database instance
vararg tableNames: String	The list of table names that should be observed

Returns
Flowable<Any>	A Flowable which emits NOTHING when one of the observed tables is modified (also once when the invalidation tracker connection is established).

createObservable

Artifact: androidx.room:room-rxjava3

View Source

Added in 2.3.0

fun createObservable(database: RoomDatabase, vararg tableNames: String): Observable<Any>

Creates a Observable that emits at least once and also re-emits whenever one of the observed tables is updated.

You can easily chain a database operation to downstream of this Observable to ensure that it re-runs when database is modified.

Since database invalidation is batched, multiple changes in the database may results in just 1 emission.

Parameters
database: RoomDatabase	The database instance
vararg tableNames: String	The list of table names that should be observed

Returns
Observable<Any>	A Observable which emits NOTHING when one of the observed tables is modified (also once when the invalidation tracker connection is established).

Top-level properties

NOTHING

Artifact: androidx.room:room-rxjava3

View Source

Added in 2.3.0

val NOTHING: Any

Data dispatched by the publisher created by createFlowable.