net.sf.reportengine.core.steps.crosstab

Class IntermedRowMangerStep

java.lang.Object

net.sf.reportengine.core.algorithm.steps.AbstractAlgoMainStep<T,U,V>

net.sf.reportengine.core.AbstractReportStep<T,U,V>

net.sf.reportengine.core.steps.crosstab.AbstractCrosstabStep<IntermediateReportRow,String,String>

net.sf.reportengine.core.steps.crosstab.IntermedRowMangerStep

All Implemented Interfaces:

AlgorithmMainStep<IntermediateReportRow,String,String>

public class IntermedRowMangerStep
extends AbstractCrosstabStep<IntermediateReportRow,String,String>

This is the manager of the intermediate crosstab row. The intermediate crosstab row holds CrosstabData (and some other useful info) until the grouping level is changed. At this moment the intermediate manager is resetting the intermediate row.

Since:

0.4

Author:

dragos balan (dragos dot balan at gmail dot com)

Field Summary

Fields inherited from class net.sf.reportengine.core.AbstractReportStep

GRAND_TOTAL_GROUPING_LEVEL

Constructor Summary

Constructors

Constructor and Description
IntermedRowMangerStep()

Method Summary

Modifier and Type	Method and Description
int	computeAggLevelForCalcRowNumber(StepInput stepInput, int calcRowNumber) computes the aggregation level for the given row of the calculators matrix
int	computeCalcRowNumberForAggLevel(StepInput stepInput, int level) computes the row number (from the calculators matrix) where the totals are for the given level
StepResult<String>	execute(NewRowEvent rowEvent, StepInput stepInput) callback method called for each row
StepResult<String>	exit(StepInput stepInput) called when finishing the algorithm execution
StepResult<IntermediateReportRow>	init(StepInput stepInput) this method is called only once for a report and represents the construction step where you can define the keys and values used inside the execute method.

Methods inherited from class net.sf.reportengine.core.steps.crosstab.AbstractCrosstabStep

getCrosstabData, getCrosstabHeaderRows, getCrosstabHeaderRowsLength, getDistinctValuesHolder, getIntermCrosstabOutput, getIntermediateCrosstabDataInfo, getIntermediateRow, getPositionOfTotal, getShowTotalsInHeader

Methods inherited from class net.sf.reportengine.core.AbstractReportStep

getCalcIntermResultsMatrix, getCalculatorDistributionInColumnDataArray, getDataColumns, getDataColumnsLength, getDataRowCount, getGroupColumns, getGroupColumnsCount, getGroupingLevel, getPreviousRowOfGroupValues, getShowGrandTotal, getShowTotals, getTotalStringForGroupingLevel, getTotalStringForGroupingLevelAndPredecessors, getTotalStringForGroupingLevelAndPredecessors

Methods inherited from class java.lang.Object

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

Constructor Detail

IntermedRowMangerStep

public IntermedRowMangerStep()

Method Detail

init

public StepResult<IntermediateReportRow> init(StepInput stepInput)

Description copied from interface: AlgorithmMainStep

this method is called only once for a report and represents the construction step where you can define the keys and values used inside the execute method. Warning: this is the only place where you can add keys to the report context

Parameters:

stepInput - TODO

Returns:

TODO

computeCalcRowNumberForAggLevel

public int computeCalcRowNumberForAggLevel(StepInput stepInput,
                                           int level)

computes the row number (from the calculators matrix) where the totals are for the given level

Overrides:

computeCalcRowNumberForAggLevel in class AbstractReportStep<IntermediateReportRow,String,String>

Parameters:

level - the aggregation level

Returns:

computeAggLevelForCalcRowNumber

public int computeAggLevelForCalcRowNumber(StepInput stepInput,
                                           int calcRowNumber)

computes the aggregation level for the given row of the calculators matrix

Overrides:

computeAggLevelForCalcRowNumber in class AbstractReportStep<IntermediateReportRow,String,String>

Parameters:

calcRowNumber -

Returns:

execute

public StepResult<String> execute(NewRowEvent rowEvent,
                                  StepInput stepInput)

Description copied from interface: AlgorithmMainStep

callback method called for each row

stepInput - TODO

Returns:

TODO

exit

public StepResult<String> exit(StepInput stepInput)

Description copied from interface: AlgorithmMainStep

called when finishing the algorithm execution