org.nuiton.wikitty.query.conditions

Class Select

java.lang.Object

org.nuiton.wikitty.query.conditions.AbstractCondition

org.nuiton.wikitty.query.conditions.ContainerOperator

org.nuiton.wikitty.query.conditions.ContainerUnaryOperator

org.nuiton.wikitty.query.conditions.Select

All Implemented Interfaces:

Serializable, Condition, ConditionValue

public class Select
extends ContainerUnaryOperator
implements ConditionValue

Cette condition n'accept pas d'etre utilise dans une autre condition. Il sert a demander l'extraction d'un autre champs que l'id. Si la valeur du champs est retrouvee plusieurs fois, cette valeur n'apparaitra qu'une seule fois dans les resultats (comme 'DISTINCT' en SQL)

Il y a donc deux types d'utilisation possible

 SELECT extName.fieldName WHERE condition
 condition ... IN (SELECT extName.fieldName WHERE other condition)
 

Version:

$Revision: 1530 $ Last update: $Date: 2013-02-20 12:31:06 +0100 (Wed, 20 Feb 2013) $ by : $Author: bpoussin $

Author:

poussin

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected WikittyQueryFunction	function

Fields inherited from class org.nuiton.wikitty.query.conditions.ContainerUnaryOperator

subCondition

Constructor Summary

Constructors

Constructor and Description
Select(WikittyQueryFunction function)
Select(WikittyQueryFunction function, Condition restriction)

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(WikittyQueryVisitor visitor)
WikittyQueryFunction	getFunction()
void	setFunction(WikittyQueryFunction function)

Methods inherited from class org.nuiton.wikitty.query.conditions.ContainerUnaryOperator

addCondition, getSubCondition, waitCondition

Methods inherited from class org.nuiton.wikitty.query.conditions.AbstractCondition

copy, equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nuiton.wikitty.query.conditions.Condition

addCondition, copy, waitCondition

Field Detail

function

protected WikittyQueryFunction function

Constructor Detail

Select

public Select(WikittyQueryFunction function)

Select

public Select(WikittyQueryFunction function,
      Condition restriction)

Method Detail

getFunction

public WikittyQueryFunction getFunction()

setFunction

public void setFunction(WikittyQueryFunction function)

accept

public void accept(WikittyQueryVisitor visitor)

Specified by:

accept in interface Condition

Overrides:

accept in class ContainerUnaryOperator