Pacchetto | mx.collections |
Classe | public class DefaultSummaryCalculator |
Ereditarietà | DefaultSummaryCalculator Object |
Implementa | ISummaryCalculator |
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
SUM
, MIN
, MAX
, AVG
, and COUNT
operations.
Elementi API correlati
Metodo | Definito da | ||
---|---|---|---|
Flex calls this method when a new value needs to be added to the summary value. | DefaultSummaryCalculator | ||
Flex calls this method when a new summary value needs to be added to the already computed summary. | DefaultSummaryCalculator | ||
Indica se per un oggetto è definita una proprietà specifica. | Object | ||
Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | ||
Indica se la proprietà specificata esiste ed è enumerabile. | Object | ||
Flex calls this method to end the computation of the summary value. | DefaultSummaryCalculator | ||
Flex calls this method to end the summary calculation. | DefaultSummaryCalculator | ||
Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | ||
Flex calls this method to start the computation of a summary value. | DefaultSummaryCalculator | ||
Flex calls this method to start calculation of summary out of summary values. | DefaultSummaryCalculator | ||
Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | ||
Restituisce la rappresentazione in formato stringa dell'oggetto specificato. | Object | ||
Restituisce il valore di base dell'oggetto specificato. | Object |
calculateSummary | () | metodo |
public function calculateSummary(data:Object, field:SummaryField2, rowData:Object):void
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
Flex calls this method when a new value needs to be added to the summary value.
Parametri
data:Object — The Object returned by the call to the summaryCalculationBegin() method,
or calculated by a previous call to the calculateSummary() method.
Use this Object to hold information necessary to perform the calculation.
This method modifies this Object; it does not return a value.
| |
field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
| |
rowData:Object — The object representing the rows data that is being analyzed.
|
calculateSummaryOfSummary | () | metodo |
public function calculateSummaryOfSummary(oldValue:Object, newValue:Object, field:SummaryField2):void
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
Flex calls this method when a new summary value needs to be added to the already computed summary.
Parametri
oldValue:Object — The Object returned by a call the summaryOfSummaryCalculationBegin() method,
or calculated by a previous call to the calculateSummaryOfSummary() method.
This method modifies this Object; it does not return a value.
| |
newValue:Object — The Object returned by the call to the returnSummary() method
for a previous aggregation.
| |
field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
|
returnSummary | () | metodo |
public function returnSummary(data:Object, field:SummaryField2):Number
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
Flex calls this method to end the computation of the summary value.
Parametri
data:Object — The Object returned by the call to the calculateSummary() method.
Use this Object to hold information necessary to perform the calculation.
| |
field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
|
Number — The summary value.
|
returnSummaryOfSummary | () | metodo |
public function returnSummaryOfSummary(oldValue:Object, field:SummaryField2):Number
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
Flex calls this method to end the summary calculation.
Parametri
oldValue:Object — The Object returned by a call to the calculateSummaryOfSummary() method
that is used to store the summary calculation results.
This method modifies this Object; it does not return a value.
| |
field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
|
Number — The summary value.
|
summaryCalculationBegin | () | metodo |
public function summaryCalculationBegin(field:SummaryField2):Object
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
Flex calls this method to start the computation of a summary value.
Parametri
field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
|
Object — An Object initialized for the summary calculation.
Use this Object to hold any information necessary to perform the calculation.
You pass this Object to subsequent calls to the calculateSummary()
and returnSummary() methods.
|
summaryOfSummaryCalculationBegin | () | metodo |
public function summaryOfSummaryCalculationBegin(value:Object, field:SummaryField2):Object
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 9, AIR 1.1 |
Flex calls this method to start calculation of summary out of summary values. Calculating the average value of a group of averages is an example of an calculation of summary out of summary values.
Parametri
value:Object — The Object returned by the call to the calculateSummary() method
for a previous summary calculation.
Use this Object to hold the information necessary to perform the calculation.
| |
field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
|
Object — An Object initialized for the summary calculation.
Use this Object to hold any information necessary to perform the calculation.
You pass this Object to subsequent calls to the calculateSummaryOfSummary()
and returnSummaryOfSummary() methods.
|
Tue Jun 12 2018, 02:44 PM Z