Package io.jmix.reports.yarg.formatters.impl.jasper

Class JRBandDataDataSource

java.lang.Object

io.jmix.reports.yarg.formatters.impl.jasper.JRBandDataDataSource

All Implemented Interfaces:

net.sf.jasperreports.engine.JRDataSource

public class JRBandDataDataSource
extends Object
implements net.sf.jasperreports.engine.JRDataSource

Provides bypass of BandData tree.

Field Summary

Fields

Modifier and Type	Field	Description
protected BandData	currentBand
protected Iterator<BandData>	currentIterator
protected Set<BandData>	readBands
protected BandData	root
protected Map<BandData,Iterator<BandData>>	visitedBands

Constructor Summary

Constructors

Constructor	Description
JRBandDataDataSource(BandData root)	Accepts root element.

Method Summary

Modifier and Type	Method	Description
protected boolean	containsVisitedBand(String bandName)
protected BandData	createNewBand(String bandName)
Object	getFieldValue(net.sf.jasperreports.engine.JRField jrField)
boolean	next()	Maintains visitedBands to continue bypass on the same level after return from deeper level of hierarchy.
JRBandDataDataSource	subDataSource(String bandName)	Search for first level children band with specified name and return new datasource with this band as root element.

Methods inherited from class java.lang.Object

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

Field Details

root

protected BandData root

currentBand

protected BandData currentBand

currentIterator

protected Iterator<BandData> currentIterator

visitedBands

protected Map<BandData,Iterator<BandData>> visitedBands

readBands

protected Set<BandData> readBands

Constructor Details

JRBandDataDataSource

public JRBandDataDataSource(BandData root)

Accepts root element. Goes down one level because root must not have elements.

Parameters:

root - of the tree

Method Details

next

public boolean next()
             throws net.sf.jasperreports.engine.JRException

Maintains visitedBands to continue bypass on the same level after return from deeper level of hierarchy. Creates iterator for each level.

Specified by:

next in interface net.sf.jasperreports.engine.JRDataSource

Throws:

net.sf.jasperreports.engine.JRException

getFieldValue

public Object getFieldValue(net.sf.jasperreports.engine.JRField jrField)
                     throws net.sf.jasperreports.engine.JRException

Specified by:

getFieldValue in interface net.sf.jasperreports.engine.JRDataSource

Throws:

net.sf.jasperreports.engine.JRException

subDataSource

public JRBandDataDataSource subDataSource(String bandName)

Search for first level children band with specified name and return new datasource with this band as root element.

createNewBand

protected BandData createNewBand(String bandName)

containsVisitedBand

protected boolean containsVisitedBand(String bandName)