Package net.hydromatic.morel.ast

Class Core.Unorder

java.lang.Object

net.hydromatic.morel.ast.AstNode

net.hydromatic.morel.ast.Core.BaseNode

net.hydromatic.morel.ast.Core.FromStep

net.hydromatic.morel.ast.Core.Unorder

Enclosing class:

Core

public static class Core.Unorder
extends Core.FromStep

Step that converts the stream to an unordered collection.

Field Summary

Fields inherited from class net.hydromatic.morel.ast.Core.FromStep

env

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

op, pos

Constructor Summary

Constructors

Constructor	Description
Unorder(Core.StepEnv env)

Method Summary

Modifier and Type	Method	Description
Core.Unorder	accept(Shuttle shuttle)	Accepts a shuttle, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.
void	accept(Visitor visitor)	Accepts a visitor, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.
Core.Unorder	copy(Core.StepEnv env)
boolean	isOrdered(boolean inputIsOrdered)	Returns whether the output of this step is ordered, given whether the input is ordered.
protected AstWriter	unparse(AstWriter w, Core.From from, int ordinal, int left, int right)

Methods inherited from class net.hydromatic.morel.ast.Core.FromStep

unparse

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

toString, unparse

Methods inherited from class java.lang.Object

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

Constructor Details

Unorder

Unorder(Core.StepEnv env)

Method Details

isOrdered

public boolean isOrdered(boolean inputIsOrdered)

Description copied from class: Core.FromStep

Returns whether the output of this step is ordered, given whether the input is ordered.

For example, Core.Where and Core.Yield are ordered if and only if their input is ordered; Core.Order is always ordered; Core.Group is unordered.

Overrides:

isOrdered in class Core.FromStep

unparse

protected AstWriter unparse(AstWriter w,
 Core.From from,
 int ordinal,
 int left,
 int right)

Specified by:

unparse in class Core.FromStep

accept

public Core.Unorder accept(Shuttle shuttle)

Description copied from class: AstNode

Accepts a shuttle, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.

Specified by:

accept in class Core.FromStep

accept

public void accept(Visitor visitor)

Description copied from class: AstNode

Accepts a visitor, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.

Overrides:

accept in class Core.BaseNode

copy

public Core.Unorder copy(Core.StepEnv env)