net.sf.jasperreports.crosstabs.design
Class JRDesignCrosstabDataset

java.lang.Object
  net.sf.jasperreports.engine.base.JRBaseElementDataset
      net.sf.jasperreports.engine.design.JRDesignElementDataset
          net.sf.jasperreports.crosstabs.design.JRDesignCrosstabDataset

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, JRCrosstabDataset, JRChangeEventsSupport, JRCloneable, JRElementDataset

public class JRDesignCrosstabDataset
extends JRDesignElementDataset
implements JRCrosstabDataset

Input crosstab dataset implementation to be used at design time.

Version:

$Id: JRDesignCrosstabDataset.java 5180 2012-03-29 13:23:12Z teodord $

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

See Also:

Serialized Form

Field Summary

protected boolean	dataPreSorted
static java.lang.String	PROPERTY_DATA_PRE_SORTED

Fields inherited from class net.sf.jasperreports.engine.design.JRDesignElementDataset

PROPERTY_DATASET_RUN, PROPERTY_INCREMENT_GROUP, PROPERTY_INCREMENT_TYPE, PROPERTY_INCREMENT_WHEN_EXPRESSION, PROPERTY_RESET_GROUP, PROPERTY_RESET_TYPE

Fields inherited from class net.sf.jasperreports.engine.base.JRBaseElementDataset

datasetRun, incrementGroup, incrementTypeValue, incrementWhenExpression, resetGroup, resetTypeValue

Constructor Summary

JRDesignCrosstabDataset()
Creates a crosstab dataset.

Method Summary

void	collectExpressions(JRExpressionCollector collector)
boolean	isDataPreSorted() Returns whether the crosstab data is pre-sorted according to the crosstab's groups.
void	setDataPreSorted(boolean dataPreSorted) Sets the presorted flag for the dataset.

Methods inherited from class net.sf.jasperreports.engine.design.JRDesignElementDataset

clone, getEventSupport, setDatasetRun, setIncrementGroup, setIncrementType, setIncrementWhenExpression, setResetGroup, setResetType

Methods inherited from class net.sf.jasperreports.engine.base.JRBaseElementDataset

getDatasetRun, getIncrementGroup, getIncrementTypeValue, getIncrementWhenExpression, getResetGroup, getResetTypeValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.jasperreports.engine.JRElementDataset

getDatasetRun, getIncrementGroup, getIncrementTypeValue, getIncrementWhenExpression, getResetGroup, getResetTypeValue

Methods inherited from interface net.sf.jasperreports.engine.JRCloneable

clone

Field Detail

PROPERTY_DATA_PRE_SORTED

public static final java.lang.String PROPERTY_DATA_PRE_SORTED

See Also:

Constant Field Values

dataPreSorted

protected boolean dataPreSorted

Constructor Detail

JRDesignCrosstabDataset

public JRDesignCrosstabDataset()

Creates a crosstab dataset.

Method Detail

collectExpressions

public void collectExpressions(JRExpressionCollector collector)

Specified by:

collectExpressions in interface JRElementDataset

isDataPreSorted

public boolean isDataPreSorted()

Description copied from interface: JRCrosstabDataset

Returns whether the crosstab data is pre-sorted according to the crosstab's groups.

The crosstab calculation engine can optimize the calculations if the data is sorted by the row groups and column groups. For example, if there are two row groups R1 and R2 (subgroup of R1) and three column groups C1, C2 and C3 the data should be sorted by R1, R2, C1, C2, C3.

Specified by:

isDataPreSorted in interface JRCrosstabDataset

Returns:

whether the crosstab data is pre-sorted

setDataPreSorted

public void setDataPreSorted(boolean dataPreSorted)

Sets the presorted flag for the dataset.

Parameters:

dataPreSorted - whether the input data is presorted

See Also:

JRCrosstabDataset.isDataPreSorted()