org.apache.drill.exec.physical.resultSet.impl

Class ProjectionFilter.BaseSchemaProjectionFilter

java.lang.Object

org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.BaseSchemaProjectionFilter

All Implemented Interfaces:

ProjectionFilter

Direct Known Subclasses:

ProjectionFilter.SchemaProjectionFilter, ProjectionFilter.TypeProjectionFilter

Enclosing interface:

ProjectionFilter

public abstract static class ProjectionFilter.BaseSchemaProjectionFilter
extends Object
implements ProjectionFilter

Schema-based projection.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter

ProjectionFilter.BaseSchemaProjectionFilter, ProjectionFilter.CompoundProjectionFilter, ProjectionFilter.DirectProjectionFilter, ProjectionFilter.ImplicitProjectionFilter, ProjectionFilter.ProjResult, ProjectionFilter.SchemaProjectionFilter, ProjectionFilter.TypeProjectionFilter

Field Summary

Fields

Modifier and Type	Field and Description
protected CustomErrorContext	errorContext
protected TupleMetadata	schema

Fields inherited from interface org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter

logger, NOT_PROJECTED, PROJECT_ALL, PROJECT_NONE, PROJECTED

Method Summary

Modifier and Type	Method and Description
boolean	isEmpty()
protected void	validateColumn(ColumnMetadata schemaCol, ColumnMetadata readerCol)
protected void	validateMap(ColumnMetadata schemaCol)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter

definedSchemaFilter, isProjected, projection, projectionFilter, providedSchemaFilter

Field Detail

schema

protected final TupleMetadata schema

errorContext

protected final CustomErrorContext errorContext

Method Detail

validateColumn

protected void validateColumn(ColumnMetadata schemaCol,
                              ColumnMetadata readerCol)

validateMap

protected void validateMap(ColumnMetadata schemaCol)

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface ProjectionFilter