org.geotools.feature.visitor

Class AverageVisitor.AverageResult

Object

AbstractCalcResult

AverageVisitor.AverageResult

All Implemented Interfaces:

CalcResult

Enclosing class:

AverageVisitor

public static class AverageVisitor.AverageResult
extends AbstractCalcResult

Field Summary

Fields inherited from interface CalcResult

NULL_RESULT

Constructor Summary

Constructors

Constructor and Description
AverageResult(int newCount, Object newSum)
AverageResult(Object newAverageStrategy)
AverageResult(Object newAverageStrategy, boolean isOptimized)

Method Summary

Modifier and Type	Method and Description
int	getCount() The count used to calculate the average
Object	getResult()
Object	getSum() The sum used to calculate the average
Object	getValue() Actual answer
boolean	isCompatible(CalcResult targetResults) Determines if the target CalcResult object can be merged with this CalcResult object
CalcResult	merge(CalcResult resultsToAdd) Merges the contents of a CalcResult Object with another CalcResult Object.

Methods inherited from class AbstractCalcResult

toArray, toDouble, toEnvelope, toFloat, toGeometry, toInt, toList, toLong, toMap, toPoint, toSet, toString, toStringArray

Methods inherited from class Object

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

Constructor Detail

AverageResult

public AverageResult(Object newAverageStrategy)

AverageResult

public AverageResult(Object newAverageStrategy,
                     boolean isOptimized)

AverageResult

public AverageResult(int newCount,
                     Object newSum)

Method Detail

getResult

public Object getResult()

getValue

public Object getValue()

Description copied from interface: CalcResult

Actual answer

Specified by:

getValue in interface CalcResult

Overrides:

getValue in class AbstractCalcResult

Returns:

the calculation result as a generic object

getCount

public int getCount()

The count used to calculate the average

Returns:

the count, or -1 if unknown

getSum

public Object getSum()

The sum used to calculate the average

isCompatible

public boolean isCompatible(CalcResult targetResults)

Determines if the target CalcResult object can be merged with this CalcResult object

Specified by:

isCompatible in interface CalcResult

Overrides:

isCompatible in class AbstractCalcResult

Parameters:

targetResults - a second CalcResult object (target)

Returns:

boolean

merge

public CalcResult merge(CalcResult resultsToAdd)

Merges the contents of a CalcResult Object with another CalcResult Object. If the two CalcResult objects are compatible, the merged result (a new object) is returned.

Specified by:

merge in interface CalcResult

Overrides:

merge in class AbstractCalcResult

Parameters:

resultsToAdd - the CalcResult to merge the results with

Returns:

a new merged CalcResult object

Throws:

IllegalArgumentException - when the resultsToAdd are inappropriate