Package net.sf.jasperreports.barcode4j

Class BarcodeFillComponent

java.lang.Object

net.sf.jasperreports.engine.component.BaseFillComponent

net.sf.jasperreports.barcode4j.BarcodeFillComponent

All Implemented Interfaces:

FillComponent

public class BarcodeFillComponent
extends BaseFillComponent

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Field Summary

Fields inherited from class net.sf.jasperreports.engine.component.BaseFillComponent

fillContext, printElementOriginator

Constructor Summary

Constructors

Constructor	Description
BarcodeFillComponent(BarcodeComponent barcodeComponent)
BarcodeFillComponent(BarcodeFillComponent barcode)

Method Summary

Modifier and Type	Method	Description
void	evaluate(byte evaluation)	Evaluates the fill component.
protected void	evaluateBarcode(byte evaluation)
void	evaluateDelayedElement(JRPrintElement element, byte evaluation)	The default implementation throws UnsupportedOperationException.
JRPrintElement	fill()	Fills the component by creating a print element which will be included in the generated report.
protected JRTemplateImage	getTemplateImage()
protected boolean	isEvaluateNow()
FillPrepareResult	prepare(int availableHeight)
FillPrepareResult	prepare(int availableHeight, boolean isOverflowAllowed)	Prepares to fill the component by deciding whether the component will print, and how much vertical space it will require.
protected void	setBarcodeImage(JRTemplatePrintImage image)

Methods inherited from class net.sf.jasperreports.engine.component.BaseFillComponent

deduplicate, evaluateExpression, initialize, rewind

Methods inherited from class java.lang.Object

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

Constructor Details

BarcodeFillComponent

public BarcodeFillComponent(BarcodeComponent barcodeComponent)

BarcodeFillComponent

public BarcodeFillComponent(BarcodeFillComponent barcode)

Method Details

evaluate

public void evaluate(byte evaluation)
              throws JRException

Description copied from interface: FillComponent

Evaluates the fill component.

This method would evaluate the component expressions and store the results to be used in FillComponent.fill().

If the component needs to delay the evaluation of some of its expressions, it would call FillContext.registerDelayedEvaluation(JRPrintElement, EvaluationTimeEnum, String) to register a delayed evaluation print element, and perform the delayed evaluations on FillComponent.evaluateDelayedElement(JRPrintElement, byte).

Parameters:

evaluation - the evaluation type

Throws:

JRException

See Also:

• FillContext.evaluate(net.sf.jasperreports.engine.JRExpression, byte)

isEvaluateNow

protected boolean isEvaluateNow()

evaluateBarcode

protected void evaluateBarcode(byte evaluation)

prepare

public FillPrepareResult prepare(int availableHeight)

prepare

public FillPrepareResult prepare(int availableHeight,
 boolean isOverflowAllowed)

Description copied from interface: FillComponent

Prepares to fill the component by deciding whether the component will print, and how much vertical space it will require.

Parameters:

availableHeight - the amount of vertical space available for the component, starting from the top of the component element.

isOverflowAllowed - flag indicating if overflow is allowed for the component.

Returns:

the result of the preparation, which specifies whether the component will print and how much it will stretch vertically.

fill

public JRPrintElement fill()

Description copied from interface: FillComponent

Fills the component by creating a print element which will be included in the generated report.

This method will get called only if FillComponent.prepare(int) returned a result that indicated that the component will print.

Returns:

the print element generated by the component

getTemplateImage

protected JRTemplateImage getTemplateImage()

setBarcodeImage

protected void setBarcodeImage(JRTemplatePrintImage image)

evaluateDelayedElement

public void evaluateDelayedElement(JRPrintElement element,
 byte evaluation)
                            throws JRException

Description copied from class: BaseFillComponent

The default implementation throws UnsupportedOperationException.

If a component supports delayed evaluation, it needs to override this method.

Specified by:

evaluateDelayedElement in interface FillComponent

Overrides:

evaluateDelayedElement in class BaseFillComponent

Parameters:

element - the print element for which delayed evaluation has been registered

evaluation - the evaluation type

Throws:

JRException

See Also:

• FillComponent.evaluate(byte)