Package io.substrait.relation

Class AbstractReadRel

java.lang.Object

io.substrait.relation.AbstractRel

io.substrait.relation.ZeroInputRel

io.substrait.relation.AbstractReadRel

All Implemented Interfaces:

HasExtension, Rel

Direct Known Subclasses:

EmptyScan, ExtensionTable, LocalFiles, NamedScan, VirtualTableScan

public abstract class AbstractReadRel
extends ZeroInputRel
implements HasExtension

Nested Class Summary

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

Rel.Remap

Constructor Summary

Constructors

Constructor	Description
AbstractReadRel()

Method Summary

Modifier and Type	Method	Description
protected final Type.Struct	deriveRecordType()
abstract Optional<Expression>	getBestEffortFilter()
abstract Optional<Expression>	getFilter()
abstract NamedStruct	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

accept, getCommonExtension, getHint, getRemap

Constructor Details

AbstractReadRel

public AbstractReadRel()

Method Details

getInitialSchema

public abstract NamedStruct getInitialSchema()

getFilter

public abstract Optional<Expression> getFilter()

getBestEffortFilter

public abstract Optional<Expression> getBestEffortFilter()

deriveRecordType

protected final Type.Struct deriveRecordType()

Specified by:

deriveRecordType in class AbstractRel