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Java Source Code / Java Documentation » Report » jasperreports 2.0.1 » net.sf.jasperreports.engine

Source Cross Reference Class Diagram Java Document (Java Doc)

net.sf.jasperreports.engine .JRElementDataset

All known Subclasses:   net.sf.jasperreports.engine.fill .JRFillElementDataset,  net.sf.jasperreports.engine.base .JRBaseElementDataset,
JRElementDataset
public interface JRElementDataset (Code)
Element datasets are used to represent the report data needed to generate a chart or crosstab. The dataset structure may vary with each chart type or crosstab. This is the superinterface for all datasets and contains common dataset properties.
author:
   Teodor Danciu (teodord@users.sourceforge.net)
version:
   $Id: JRElementDataset.java 1317 2006-06-30 16:02:41Z lucianc $

Method Summary
public void collectExpressions(JRExpressionCollector collector)

public JRDatasetRun getDatasetRun()
     Returns the sub dataset run for this chart dataset.
public JRGroup getIncrementGroup()
     Gets the selected increment group in case of increment type group.
public byte getIncrementType()
     Returns the increment type.
public JRExpression getIncrementWhenExpression()
     Returns the "increment when" expression.
public JRGroup getResetGroup()
     Gets the selected reset group in case of reset type group.
public byte getResetType()
     Gets the reset type.

Method Detail
collectExpressions
public void collectExpressions(JRExpressionCollector collector)(Code)

getDatasetRun
public JRDatasetRun getDatasetRun()(Code)
Returns the sub dataset run for this chart dataset. the sub dataset run for this chart dataset

getIncrementGroup
public JRGroup getIncrementGroup()(Code)
Gets the selected increment group in case of increment type group.

getIncrementType
public byte getIncrementType()(Code)
Returns the increment type. This specifies dataset values increment step. one of the reset constants in JRVariable, since the increment type uses the sameconstants as the reset type.

getIncrementWhenExpression
public JRExpression getIncrementWhenExpression()(Code)
Returns the "increment when" expression.
This expression determines whether a dataset will be incremented or not.
The expression (if not null) is evaluated before each increment of the dataset. The increment will be carried on only when the result of the evaluation is Boolean.TRUE; if the result is null or false, the increment will not be performed. the "increment when" expression

getResetGroup
public JRGroup getResetGroup()(Code)
Gets the selected reset group in case of reset type group.

getResetType
public byte getResetType()(Code)
Gets the reset type. This specifies the range of report data used for filling the dataset. one of the reset constants in JRVariable

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