Package com.here.platform.data.client.v2.api.javadsl.versioned

Interface CachingVersionedGenericLayerReader<T>

All Superinterfaces:

VersionedGenericLayerReader<T>

All Known Implementing Classes:

JavaScalaConverters.AsJavaCachingVersionedGenericLayerReader

public interface CachingVersionedGenericLayerReader<T>
extends VersionedGenericLayerReader<T>

Method Summary

Modifier and Type	Method	Description
void	preload(Iterable<Long> versions, Iterable<String> partitionIds)	Downloads the data for the requested versions of the given partitionIds and puts it into the cache for later retrieval.
CompletionStage<Void>	preloadAsync(Iterable<Long> versions, Iterable<String> partitionIds, Executor executor)	Downloads the data for the requested versions of the given partitionIds and puts it into the cache for later retrieval.

Methods inherited from interface com.here.platform.data.client.v2.api.javadsl.versioned.VersionedGenericLayerReader

read

Method Details

preload

void preload(Iterable<Long> versions,
 Iterable<String> partitionIds)

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.

preloadAsync

CompletionStage<Void> preloadAsync(Iterable<Long> versions,
 Iterable<String> partitionIds,
 Executor executor)

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.