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

Class ProjectionFilter.ImplicitProjectionFilter

java.lang.Object

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

All Implemented Interfaces:

ProjectionFilter

Enclosing interface:

ProjectionFilter

public static class ProjectionFilter.ImplicitProjectionFilter
extends Object
implements ProjectionFilter

Implied projection: either project all or project none. Never projects special columns (those marked as not being expanded in SELECT *).

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

logger, NOT_PROJECTED, PROJECT_ALL, PROJECT_NONE, PROJECTED

Constructor Summary

Constructors

Constructor	Description
ImplicitProjectionFilter(boolean projectAll)

Method Summary

Modifier and Type	Method	Description
boolean	isEmpty()
boolean	isProjected(String name)
ProjectionFilter.ProjResult	projection(ColumnMetadata col)

Methods inherited from class java.lang.Object

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

Constructor Details

ImplicitProjectionFilter

public ImplicitProjectionFilter(boolean projectAll)

Method Details

projection

public ProjectionFilter.ProjResult projection(ColumnMetadata col)

Specified by:

projection in interface ProjectionFilter

isProjected

public boolean isProjected(String name)

Specified by:

isProjected in interface ProjectionFilter

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface ProjectionFilter