org.apache.drill.exec.physical.impl.scan.project

Class ScanLevelProjection.Builder

java.lang.Object

org.apache.drill.exec.physical.impl.scan.project.ScanLevelProjection.Builder

Enclosing class:

ScanLevelProjection

public static class ScanLevelProjection.Builder
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected CustomErrorContext	errorContext Context used with error messages.

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
ScanLevelProjection	build()
ScanLevelProjection.Builder	errorContext(CustomErrorContext context)
ScanLevelProjection.Builder	parsers(List<ScanLevelProjection.ScanProjectionParser> parsers)
ScanLevelProjection.Builder	projection(List<SchemaPath> projectionList) Specify the set of columns in the SELECT list.
List<SchemaPath>	projectionList()
TupleMetadata	providedSchema()
ScanLevelProjection.Builder	providedSchema(TupleMetadata providedSchema)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

errorContext

protected CustomErrorContext errorContext

Context used with error messages.

Constructor Detail

Builder

public Builder()

Method Detail

projection

public ScanLevelProjection.Builder projection(List<SchemaPath> projectionList)

Specify the set of columns in the SELECT list. Since the column list comes from the query planner, assumes that the planner has checked the list for syntax and uniqueness.

Parameters:

queryCols - list of columns in the SELECT list in SELECT list order

Returns:

this builder

parsers

public ScanLevelProjection.Builder parsers(List<ScanLevelProjection.ScanProjectionParser> parsers)

providedSchema

public ScanLevelProjection.Builder providedSchema(TupleMetadata providedSchema)

errorContext

public ScanLevelProjection.Builder errorContext(CustomErrorContext context)

build

public ScanLevelProjection build()

providedSchema

public TupleMetadata providedSchema()

projectionList

public List<SchemaPath> projectionList()