com.asakusafw.dmdl.model

Class AstSummarize

java.lang.Object

com.asakusafw.dmdl.model.AbstractAstNode

com.asakusafw.dmdl.model.AstSummarize

All Implemented Interfaces:

AstExpression<AstSummarize>, AstNode, AstTerm<AstSummarize>

public class AstSummarize
extends AbstractAstNode
implements AstTerm<AstSummarize>

Represents a term of join model.

Since:

0.2.0

Nested Class Summary

Nested classes/interfaces inherited from interface com.asakusafw.dmdl.model.AstNode

AstNode.AbstractVisitor<C,R>, AstNode.Visitor<C,R>

Field Summary

Fields

Modifier and Type	Field and Description
AstModelFolding	folding The folding function how to convert summarize target to the result model.
AstGrouping	grouping The grouping properties for aggregation.
AstModelReference	reference The reference to the summarize target model.

Constructor Summary

Constructors

Constructor and Description
AstSummarize(Region region, AstModelReference reference, AstModelFolding folding, AstGrouping grouping) Creates and returns a new instance.

Method Summary

Modifier and Type	Method and Description
<C,R> R	accept(C context, AstNode.Visitor<C,R> visitor) Accepts and calls back the visitor.
boolean	equals(Object obj)
Region	getRegion() Returns the region of this node.
AstSummarize	getUnit() Returns itself.
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

reference

public final AstModelReference reference

The reference to the summarize target model.

folding

public final AstModelFolding folding

The folding function how to convert summarize target to the result model.

grouping

public final AstGrouping grouping

The grouping properties for aggregation.

This can be null if use total grouping.

Constructor Detail

AstSummarize

public AstSummarize(Region region,
                    AstModelReference reference,
                    AstModelFolding folding,
                    AstGrouping grouping)

Creates and returns a new instance.

Parameters:

region - the region of this node on the enclosing script, or null if unknown

reference - the reference to the summarize target model

folding - the folding function

grouping - the grouping properties, or null on total grouping

Throws:

IllegalArgumentException - if some parameters were null

Method Detail

getRegion

public Region getRegion()

Description copied from interface: AstNode

Returns the region of this node.

Specified by:

getRegion in interface AstNode

Returns:

the region, or null if unknown

getUnit

public AstSummarize getUnit()

Description copied from interface: AstTerm

Returns itself.

Specified by:

getUnit in interface AstTerm<AstSummarize>

Returns:

this

accept

public <C,R> R accept(C context,
                      AstNode.Visitor<C,R> visitor)

Description copied from interface: AstNode

Accepts and calls back the visitor.

Specified by:

accept in interface AstNode

Type Parameters:

C - type of visitor context

R - type of visitor result

Parameters:

context - the visitor context

visitor - the visitor to call back

Returns:

call back result

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object