| Package | mx.collections |
| Class | public class DefaultSummaryCalculator |
| Inheritance | DefaultSummaryCalculator  Object |
| Implements | ISummaryCalculator |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
SUM, MIN, MAX, AVG, and COUNT operations.
Related API Elements
Public Properties
Hide Inherited Public Properties
Show Inherited Public PropertiesPublic Methods
| Method | Defined By | ||
|---|---|---|---|
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 | ||
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Indicates whether an object has a specified property defined. | Object | |
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Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
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Indicates whether the specified property exists and is enumerable. | Object | |
Flex calls this method to end the computation of the summary value. | DefaultSummaryCalculator | ||
Flex calls this method to end the summary calculation. | DefaultSummaryCalculator | ||
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Sets the availability of a dynamic property for loop operations. | 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 | ||
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Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
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Returns the string representation of the specified object. | Object | |
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Returns the primitive value of the specified object. | Object | |
Method Detail
calculateSummary | () | method |
public function calculateSummary(data:Object, field:SummaryField2, rowData:Object):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Flex calls this method when a new value needs to be added to the summary value.
Parameters
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.
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field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
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rowData:Object — The object representing the rows data that is being analyzed.
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calculateSummaryOfSummary | () | method |
public function calculateSummaryOfSummary(oldValue:Object, newValue:Object, field:SummaryField2):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Flex calls this method when a new summary value needs to be added to the already computed summary.
Parameters
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.
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field:SummaryField2 — The SummaryField2 for which the summary needs to calculated.
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returnSummary | () | method |
public function returnSummary(data:Object, field:SummaryField2):Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Flex calls this method to end the computation of the summary value.
Parameters
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.
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Number — The summary value.
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returnSummaryOfSummary | () | method |
public function returnSummaryOfSummary(oldValue:Object, field:SummaryField2):Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Flex calls this method to end the summary calculation.
Parameters
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.
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Number — The summary value.
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summaryCalculationBegin | () | method |
public function summaryCalculationBegin(field:SummaryField2):Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Flex calls this method to start the computation of a summary value.
Parameters
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.
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summaryOfSummaryCalculationBegin | () | method |
public function summaryOfSummaryCalculationBegin(value:Object, field:SummaryField2):Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | 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.
Parameters
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.
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Mon Nov 28 2011, 06:48 AM -08:00