ScanSchemaOrchestrator.ScanSchemaOptions (Drill : 1.20.3 API)

java.lang.Object
- org.apache.drill.exec.physical.impl.scan.project.ScanSchemaOrchestrator.ScanSchemaOptions

public static class ScanSchemaOrchestrator.ScanSchemaOptions
extends Object

Fields
Modifier and Type	Field and Description
`boolean`	`allowRequiredNullColumns`
`CustomErrorContext`	`context` Context for error messages.
`long`	`limit`
`TypeProtos.MajorType`	`nullType` Custom null type, if provided by the operator.
`List<ScanLevelProjection.ScanProjectionParser>`	`parsers`
`List<SchemaPath>`	`projection`
`TupleMetadata`	`providedSchema`
`int`	`scanBatchByteLimit`
`int`	`scanBatchRecordLimit`
`List<ReaderLevelProjection.ReaderProjectionResolver>`	`schemaResolvers` List of resolvers used to resolve projection columns for each new schema.
`boolean`	`useSchemaSmoothing`

Constructors
Modifier	Constructor and Description
`protected`	`ScanSchemaOptions(ScanSchemaOrchestrator.ScanOrchestratorBuilder builder)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected TupleMetadata`	`providedSchema()`

nullType
```
public final TypeProtos.MajorType nullType
```
Custom null type, if provided by the operator. If not set, the null type is the Drill default.

public final List<ScanLevelProjection.ScanProjectionParser> parsers

schemaResolvers
```
public final List<ReaderLevelProjection.ReaderProjectionResolver> schemaResolvers
```
List of resolvers used to resolve projection columns for each new schema. Allows operators to introduce custom functionality as a plug-in rather than by copying code or subclassing this mechanism.

public final List<SchemaPath> projection

public final boolean useSchemaSmoothing

public final boolean allowRequiredNullColumns

public final TupleMetadata providedSchema

public final CustomErrorContext context

Context for error messages.

protected ScanSchemaOptions(ScanSchemaOrchestrator.ScanOrchestratorBuilder builder)

protected TupleMetadata providedSchema()

Class ScanSchemaOrchestrator.ScanSchemaOptions