org.nuiton.wikitty.query.function

Class WikittyQueryFunction

java.lang.Object

org.nuiton.wikitty.query.function.WikittyQueryFunction

Direct Known Subclasses:

FunctionAvg, FunctionCount, FunctionDistinct, FunctionFieldValue, FunctionFusion, FunctionMax, FunctionMin, FunctionSum, FunctionValue, WikittyQueryFunctionWrapper

public abstract class WikittyQueryFunction
extends Object

Herite de Element et utilise value pour stocker la methode a appeler

Version:

$Revision: 1545 $ Last update: $Date: 2013-02-24 02:41:10 +0100 (Sun, 24 Feb 2013) $ by : $Author: bpoussin $

Author:

poussin

Field Summary

Fields

Modifier and Type	Field and Description
protected List<WikittyQueryFunction>	args la liste des arguments de la fonction
protected String	methodName le nom de la methode a appeler
protected String	name le nom que l'utilisateur a donné au resultat: ex: Sum(amount) as Toto
protected int	numArg le nombre d'argument que la function peut prendre.

Constructor Summary

Constructors

Constructor and Description
WikittyQueryFunction(String methodName, String name, List<WikittyQueryFunction> args)

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(WikittyQueryVisitor visitor)
boolean	acceptMoreArgs()
void	addArgs(List<WikittyQueryFunction> args)
void	addArgs(WikittyQueryFunction arg)
abstract List<Map<String,Object>>	call(WikittySearchEngine searchEngine, WikittyTransaction tx, WikittyQuery query, List<Map<String,Object>> data)
static WikittyQueryFunction	create(String methodName, String name, List<WikittyQueryFunction> args)
static WikittyQueryFunction	createFusionIfNeeded(List<WikittyQueryFunction> args)
boolean	equals(Object o)
protected List<Map<String,Object>>	fusion(List<List<Map<String,Object>>> listData)
List<WikittyQueryFunction>	getArgs()
protected Object	getFirstFieldName(List<Map<String,Object>> data)
protected Method	getMethod(String fqMethod)
String	getMethodName()
String	getName()
int	getNumArg()
protected Object	getUniqueValue(List<Map<String,Object>> data)
protected Object	getUniqueValue(Map<String,Object> o)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

methodName

protected String methodName

le nom de la methode a appeler

name

protected String name

le nom que l'utilisateur a donné au resultat: ex: Sum(amount) as Toto

args

protected List<WikittyQueryFunction> args

la liste des arguments de la fonction

numArg

protected int numArg

le nombre d'argument que la function peut prendre. Integer.MAX_VALUE = infini

Constructor Detail

WikittyQueryFunction

public WikittyQueryFunction(String methodName,
                    String name,
                    List<WikittyQueryFunction> args)

Method Detail

createFusionIfNeeded

public static WikittyQueryFunction createFusionIfNeeded(List<WikittyQueryFunction> args)

create

public static WikittyQueryFunction create(String methodName,
                          String name,
                          List<WikittyQueryFunction> args)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

accept

public void accept(WikittyQueryVisitor visitor)

getName

public String getName()

getMethodName

public String getMethodName()

getArgs

public List<WikittyQueryFunction> getArgs()

addArgs

public void addArgs(List<WikittyQueryFunction> args)

addArgs

public void addArgs(WikittyQueryFunction arg)

getNumArg

public int getNumArg()

acceptMoreArgs

public boolean acceptMoreArgs()

call

public abstract List<Map<String,Object>> call(WikittySearchEngine searchEngine,
                            WikittyTransaction tx,
                            WikittyQuery query,
                            List<Map<String,Object>> data)

toString

public String toString()

Overrides:

toString in class Object

fusion

protected List<Map<String,Object>> fusion(List<List<Map<String,Object>>> listData)

getUniqueValue

protected Object getUniqueValue(List<Map<String,Object>> data)

getUniqueValue

protected Object getUniqueValue(Map<String,Object> o)

getFirstFieldName

protected Object getFirstFieldName(List<Map<String,Object>> data)

getMethod

protected Method getMethod(String fqMethod)

Parameters:

fqMethod - une methode d du style le.package.objet#method

Returns: