Package io.substrait.relation

Class VirtualTableScan

java.lang.Object

io.substrait.relation.AbstractRel

io.substrait.relation.ZeroInputRel

io.substrait.relation.AbstractReadRel

io.substrait.relation.VirtualTableScan

All Implemented Interfaces:

HasExtension, Rel

Direct Known Subclasses:

ImmutableVirtualTableScan

@Immutable
public abstract class VirtualTableScan
extends AbstractReadRel

Nested Class Summary

Nested classes/interfaces inherited from interface io.substrait.relation.Rel

Rel.Remap

Constructor Summary

Constructors

Constructor	Description
VirtualTableScan()

Method Summary

Modifier and Type	Method	Description
<O, C extends VisitationContext, E extends Exception> O	accept(RelVisitor<O,C,E> visitor, C context)
static ImmutableVirtualTableScan.Builder	builder()
protected void	check()	Checks the following invariants when construction a VirtualTableScan no null field names no null rows row shape must match field-list row field types must match schema types
abstract List<Expression.NestedStruct>	getRows()

Methods inherited from class io.substrait.relation.AbstractReadRel

deriveRecordType, getBestEffortFilter, getFilter, getInitialSchema

Methods inherited from class io.substrait.relation.ZeroInputRel

getInputs

Methods inherited from class io.substrait.relation.AbstractRel

getRecordType

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.substrait.relation.HasExtension

getExtension

Methods inherited from interface io.substrait.relation.Rel

getCommonExtension, getHint, getRemap

Constructor Details

VirtualTableScan

public VirtualTableScan()

Method Details

getRows

public abstract List<Expression.NestedStruct> getRows()

check

@Check
protected void check()

Checks the following invariants when construction a VirtualTableScan

• no null field names
• no null rows
• row shape must match field-list
• row field types must match schema types

accept

public <O,
C extends VisitationContext,
E extends Exception>
O accept(RelVisitor<O,C,E> visitor,
 C context)
  throws E

Throws:

E extends Exception

builder

public static ImmutableVirtualTableScan.Builder builder()