Package net.hydromatic.morel.ast

Class Ast.SetStep

java.lang.Object

net.hydromatic.morel.ast.AstNode

net.hydromatic.morel.ast.Ast.FromStep

net.hydromatic.morel.ast.Ast.SetStep

Direct Known Subclasses:

Ast.Except, Ast.Intersect, Ast.Union

Enclosing class:

Ast

public abstract static class Ast.SetStep
extends Ast.FromStep

Base class for a step that is a set operation (union, intersect, except).

Field Summary

Fields

Modifier and Type	Field	Description
final com.google.common.collect.ImmutableList<Ast.Exp>	args
final boolean	distinct

Fields inherited from class net.hydromatic.morel.ast.AstNode

op, pos

Constructor Summary

Constructors

Constructor	Description
SetStep(Pos pos, Op op, boolean distinct, com.google.common.collect.ImmutableList<Ast.Exp> args)

Method Summary

Modifier and Type	Method	Description
abstract Ast.SetStep	copy(boolean distinct, List<Ast.Exp> args)
boolean	equals(Object obj)
int	hashCode()
(package private) AstWriter	unparse(AstWriter w, int left, int right)

Methods inherited from class net.hydromatic.morel.ast.AstNode

accept, accept, toString, unparse

Methods inherited from class java.lang.Object

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

Field Details

args

public final com.google.common.collect.ImmutableList<Ast.Exp> args

distinct

public final boolean distinct

Constructor Details

SetStep

SetStep(Pos pos,
 Op op,
 boolean distinct,
 com.google.common.collect.ImmutableList<Ast.Exp> args)

Method Details

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

unparse

AstWriter unparse(AstWriter w,
 int left,
 int right)

Specified by:

unparse in class AstNode

copy

public abstract Ast.SetStep copy(boolean distinct,
 List<Ast.Exp> args)