com.facebook.presto.spi.relation

Class SpecialFormExpression

java.lang.Object

com.facebook.presto.spi.relation.RowExpression

com.facebook.presto.spi.relation.SpecialFormExpression

@Immutable
public class SpecialFormExpression
extends RowExpression

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SpecialFormExpression.Form

Constructor Summary

Constructors

Constructor and Description
SpecialFormExpression(Optional<SourceLocation> sourceLocation, SpecialFormExpression.Form form, Type returnType, List<RowExpression> arguments)
SpecialFormExpression(Optional<SourceLocation> sourceLocation, SpecialFormExpression.Form form, Type returnType, RowExpression... arguments)
SpecialFormExpression(SpecialFormExpression.Form form, Type returnType, List<RowExpression> arguments)
SpecialFormExpression(SpecialFormExpression.Form form, Type returnType, RowExpression... arguments)

Method Summary

Modifier and Type	Method and Description
<R,C> R	accept(RowExpressionVisitor<R,C> visitor, C context)
RowExpression	canonicalize()
boolean	equals(Object obj)
List<RowExpression>	getArguments()
SpecialFormExpression.Form	getForm()
Type	getType()
int	hashCode()
String	toString()

Methods inherited from class com.facebook.presto.spi.relation.RowExpression

getSourceLocation

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SpecialFormExpression

public SpecialFormExpression(Optional<SourceLocation> sourceLocation,
                             SpecialFormExpression.Form form,
                             Type returnType,
                             RowExpression... arguments)

SpecialFormExpression

public SpecialFormExpression(SpecialFormExpression.Form form,
                             Type returnType,
                             RowExpression... arguments)

SpecialFormExpression

public SpecialFormExpression(SpecialFormExpression.Form form,
                             Type returnType,
                             List<RowExpression> arguments)

SpecialFormExpression

public SpecialFormExpression(Optional<SourceLocation> sourceLocation,
                             SpecialFormExpression.Form form,
                             Type returnType,
                             List<RowExpression> arguments)

Method Detail

getForm

public SpecialFormExpression.Form getForm()

getType

public Type getType()

Specified by:

getType in class RowExpression

getArguments

public List<RowExpression> getArguments()

toString

public String toString()

Specified by:

toString in class RowExpression

hashCode

public int hashCode()

Specified by:

hashCode in class RowExpression

equals

public boolean equals(Object obj)

Specified by:

equals in class RowExpression

accept

public <R,C> R accept(RowExpressionVisitor<R,C> visitor,
                      C context)

Specified by:

accept in class RowExpression

canonicalize

public RowExpression canonicalize()

Specified by:

canonicalize in class RowExpression

Returns:

Canonical form of RowExpression by removing non-critical information from the node, like source location. Does NOT canonicalize the child expressions.