Package org.elasticsearch.xpack.esql.datasources.cache

package org.elasticsearch.xpack.esql.datasources.cache

Related Packages

Package	Description
org.elasticsearch.xpack.esql.datasources

Class	Description
ColumnStatsAccumulator	Accumulates per-column null count + min + max across the pages of a single cold scan.
CountingInputStream	Wraps an InputStream and counts the bytes successfully read.
ExternalSourceCacheService	Coordinator-only, in-memory cache service for external source metadata.
ExternalSourceCacheSettings	Cluster settings for ESQL external source caching.
ExternalStats	Serialization vocabulary and value types for external-text aggregate metadata.
ExternalStats.ColumnStats	Per-column statistics.
ExternalStats.Stats	Structured per-file statistics captured during a clean whole-file (or summed-chunk) cold scan.
ExternalStatsCapture	Thread-bound sink for captured per-file source statistics.
ExternalStatsCapture.Handle
FooterByteCache	JVM-wide cache for file footer bytes (Parquet footers, ORC postscripts) shared across columnar format readers.
FooterByteCache.Key	Cache key identifying a file by its storage path and total length.
ListingCacheKey	Cache key for file listing results.
ParsedFooterCache<T>	JVM-wide cache for parsed file metadata (e.g.
SchemaCacheEntry	Cache entry for schema inference results.
SchemaCacheKey	Cache key for schema inference results.
StatsCapturingIterator	Wraps a CloseableIterator so the iterator's close() runs with an ExternalStatsCapture sink bound on the current thread.
StorageProviderCache	LRU cache for StorageProvider instances, keyed by (scheme, config).
StorageProviderCache.CacheKey	Cache key that combines the URI scheme with the config map.
StorageProviderCache.ProviderFactory	Supplier invoked on cache miss; returns the provider plus the keys it consumed from config.
StripeStatsHarvester	Shared canonical-stripe statistics harvester for the row-format readers (CSV / TSV / NDJSON).
StripeStatsHarvester.StripeAccum	One stripe's running stats: row count + per-column min/max/null.
StripeStatsHarvester.StripeRunConsumer	Receives one maximal run of consecutive same-stripe positions [from, to) in a page.
TextFormatStats	Builds a SourceStatistics from a cached ExternalStats.Stats for the line-oriented text-format readers (CSV / TSV / NDJSON).