class AsScalaCachingVersionedGenericLayerReader[T] extends AsScalaVersionedGenericLayerReader[T] with CachingVersionedGenericLayerReader[T]
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- new AsScalaCachingVersionedGenericLayerReader(asJava: CachingVersionedGenericLayerReader[T])
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- val asJava: CachingVersionedGenericLayerReader[T]
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- AsScalaCachingVersionedGenericLayerReader → AsScalaVersionedGenericLayerReader
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- def preload(versions: Iterable[Long], partitionIds: Iterable[String]): Unit
Downloads the data for the requested versions of the given partitionIds and puts it into the cache for later retrieval.
Downloads the data for the requested versions of the given partitionIds and puts it into the cache for later retrieval.
If the data does not fit into the cache completely, this might evict entries from the cache.
- Definition Classes
- AsScalaCachingVersionedGenericLayerReader → CachingVersionedGenericLayerReader
- def preloadAsync(versions: Iterable[Long], partitionIds: Iterable[String])(implicit ec: ExecutionContext): Future[Unit]
Downloads the data for the requested versions of the given partitionIds and puts it into the cache for later retrieval.
Downloads the data for the requested versions of the given partitionIds and puts it into the cache for later retrieval.
If the data does not fit into the cache completely, this might evict entries from the cache.
Please note that using a work stealing thread pool might lead to starvation.
- Definition Classes
- AsScalaCachingVersionedGenericLayerReader → CachingVersionedGenericLayerReader
- def read(version: Long, partitionId: String): Option[T]
Get data from a versioned layer with a given version and partition id (String).
Get data from a versioned layer with a given version and partition id (String).
- version
Catalog version against which to run the query.
- partitionId
Partition id.
- returns
an Option with the data retrieved (None if no data is retrieved).
- Definition Classes
- AsScalaVersionedGenericLayerReader → VersionedGenericLayerReader
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- Deprecated
(Since version 9)