Uses of Interface
org.apache.drill.exec.physical.impl.scan.ScanOperatorEvents
Package
Description
Defines the scan operation implementation.
Handles the special "columns" column used by the text reader,
and available to similar readers.
Handles optional file metadata columns: implicit columns and
partition columns.
Defines the projection, vector continuity and other operations for
a set of one or more readers.
Provides run-time semantic analysis of the projection list for the
scan operator.
Implements the details of the scan lifecycle for a set of readers,
primarily the process of resolving the scan output schema from a variety
of input schemas, then running each reader, each of which will produce
some number of batches.
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Uses of ScanOperatorEvents in org.apache.drill.exec.physical.impl.scan
ModifierConstructorDescriptionScanOperatorExec
(ScanOperatorEvents factory, boolean allowEmptyResult) -
Uses of ScanOperatorEvents in org.apache.drill.exec.physical.impl.scan.columns
Modifier and TypeClassDescriptionclass
Scan framework for a file that supports the special "columns" column. -
Uses of ScanOperatorEvents in org.apache.drill.exec.physical.impl.scan.file
Modifier and TypeClassDescriptionclass
The file scan framework adds into the scan framework support for implicit reading from DFS splits (a file and a block). -
Uses of ScanOperatorEvents in org.apache.drill.exec.physical.impl.scan.framework
Modifier and TypeClassDescriptionclass
Basic scan framework for a "managed" reader which uses the scan schema mechanisms encapsulated in the scan schema orchestrator. -
Uses of ScanOperatorEvents in org.apache.drill.exec.physical.impl.scan.project
Modifier and TypeMethodDescriptionabstract ScanOperatorEvents
ScanSchemaOrchestrator.ScanOrchestratorBuilder.buildEvents()
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Uses of ScanOperatorEvents in org.apache.drill.exec.physical.impl.scan.v3.lifecycle
Modifier and TypeClassDescriptionclass
Binds the scan lifeycle to the scan operator.