net.sf.reportengine.core.calc

Class AbstractGroupCalculator<R,I extends CalcIntermResult<R>,V>

java.lang.Object

net.sf.reportengine.core.calc.AbstractGroupCalculator<R,I,V>

All Implemented Interfaces:

GroupCalculator<R,I,V>

Direct Known Subclasses:

AvgGroupCalculator, CountGroupCalculator, FirstGroupCalculator, LastGroupCalculator, MaxGroupCalculator, MinGroupCalculator, SumGroupCalculator

public abstract class AbstractGroupCalculator<R,I extends CalcIntermResult<R>,V>
extends Object
implements GroupCalculator<R,I,V>

This is just a holder for the label of group calculators. More properties could be added in the future.

Author:

dragos balan

Constructor Summary

Constructors

Constructor and Description
AbstractGroupCalculator(String label)

Method Summary

Modifier and Type	Method and Description
String	getLabel() returns the label to be displayed at the beginning of the total row.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.reportengine.core.calc.GroupCalculator

compute, init

Constructor Detail

AbstractGroupCalculator

public AbstractGroupCalculator(String label)

Method Detail

getLabel

public String getLabel()

Description copied from interface: GroupCalculator

returns the label to be displayed at the beginning of the total row. Example: 1. for a SumGroupCalculator this label should be "Total" so that each total row to display Total and Grand Total at the end 2. for a AvgGroupCalculator this label should be "Average"

Specified by:

getLabel in interface GroupCalculator<R,I extends CalcIntermResult<R>,V>

Returns: