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Java Source Code / Java Documentation » Report » pentaho report » org.jfree.report.layout.output

Source Cross Reference

Class Diagram

Java Document (Java Doc)

org.jfree.report.function .AbstractFunction

org.jfree.report.layout.output .DefaultOutputFunction

DefaultOutputFunction
public class DefaultOutputFunction extends AbstractFunction implements OutputFunction,PageEventListener(Code)
	Creation-Date: 08.04.2007, 16:22:18 author: Thomas Morgner

Field Summary
final public static String	HANDLE_PENDING_GROUP_FOOTER_KEY

Constructor Summary
public	DefaultOutputFunction() Creates an unnamed function.

Method Summary
protected void	clearCurrentEvent() Clears the current event.
final public Object	clone() Clones the function.
protected static LayouterLevel[]	collectSubReportStates(ReportEvent event, ExpressionRuntime parent)
public OutputFunction	deriveForPagebreak() Creates a cheaper version of the deep-copy of the output function.
public OutputFunction	deriveForStorage() Creates a storage-copy of the output function.
protected ReportEvent	getCurrentEvent() Returns the current report event.
public Expression	getInstance()
public Renderer	getRenderer()
public Object	getValue() Return the current expression value.
public void	groupFinished(ReportEvent event) Receives notification that a group has finished.
public void	groupStarted(ReportEvent event) Receives notification that a group has started.
protected boolean	isLastPagebreak()
public void	itemsAdvanced(ReportEvent event) Receives notification that a row of data is being processed.
public void	itemsStarted(ReportEvent event) Receives notification that a group of item bands is about to be processed.
public void	pageFinished(ReportEvent event) Receives notification that a page has ended. This prints the PageFooter.
public void	pageStarted(ReportEvent event) Receives notification that a page has started.
protected void	print(ExpressionRuntime dataRow, Band band) Prints the given band at the current cursor position.
public void	reportDone(ReportEvent event) Receives notification that report generation has completed, the report footer was printed, no more output is done.
public void	reportFinished(ReportEvent event) Receives notification that the report has finished.
public void	reportInitialized(ReportEvent event)
public void	reportStarted(ReportEvent event) Receives notification that the report has started.
protected void	setCurrentEvent(ReportEvent currentEvent) Sets the current event (also updates the report reference).
public void	setRenderer(Renderer renderer)
protected void	updateFooterArea(ReportEvent event)
protected void	updateHeaderArea(ReportEvent event)

Field Detail

HANDLE_PENDING_GROUP_FOOTER_KEY
final public static String HANDLE_PENDING_GROUP_FOOTER_KEY(Code)

Constructor Detail

DefaultOutputFunction
public DefaultOutputFunction()(Code)
	Creates an unnamed function. Make sure the name of the function is set using DefaultOutputFunction.setName before the function is added to the report's function collection.

Method Detail

clearCurrentEvent
protected void clearCurrentEvent()(Code)
	Clears the current event.

clone
final public Object clone() throws CloneNotSupportedException(Code)
	Clones the function. Be aware, this does not create a deep copy. If you have complex strucures contained in objects, you have to override this function. a clone of this function. throws: CloneNotSupportedException - this should never happen.

collectSubReportStates
protected static LayouterLevel[] collectSubReportStates(ReportEvent event, ExpressionRuntime parent)(Code)

deriveForPagebreak
public OutputFunction deriveForPagebreak()(Code)
	Creates a cheaper version of the deep-copy of the output function. A pagebreak-derivate is created on every possible pagebreak position and must contain all undo/rollback information to restore the state of any shared object when a roll-back is requested. Any failure to implement this method correctly will be a great source of very subtle bugs. the deep clone.

deriveForStorage
public OutputFunction deriveForStorage()(Code)
	Creates a storage-copy of the output function. A storage copy must create a deep clone of all referenced objects so that it is guaranteed that changes to either the original or the clone do not affect the other instance. Any failure to implement this method correctly will be a great source of very subtle bugs. the deep clone.

getCurrentEvent
protected ReportEvent getCurrentEvent()(Code)
	Returns the current report event. the event.

getInstance
public Expression getInstance()(Code)

getRenderer
public Renderer getRenderer()(Code)

getValue
public Object getValue()(Code)
	Return the current expression value. The value depends (obviously) on the expression implementation. the value of the function.

groupFinished
public void groupFinished(ReportEvent event)(Code)
	Receives notification that a group has finished. Prints the GroupFooter. Parameters: event - Information about the event.

groupStarted
public void groupStarted(ReportEvent event)(Code)
	Receives notification that a group has started. Prints the GroupHeader Parameters: event - Information about the event.

isLastPagebreak
protected boolean isLastPagebreak()(Code)

itemsAdvanced
public void itemsAdvanced(ReportEvent event)(Code)
	Receives notification that a row of data is being processed. prints the ItemBand. Parameters: event - Information about the event.

itemsStarted
public void itemsStarted(ReportEvent event)(Code)
	Receives notification that a group of item bands is about to be processed. The next events will be itemsAdvanced events until the itemsFinished event is raised. Parameters: event - The event.

pageFinished

public void pageFinished(ReportEvent event)(Code)

Receives notification that a page has ended.

This prints the PageFooter. If this is the first page, the footer is not printed if the pagefooter style-flag DISPLAY_ON_FIRSTPAGE is set to false. If this event is known to be the last pageFinished event, the DISPLAY_ON_LASTPAGE is evaluated and the footer is printed only if this flag is set to TRUE.

Parameters:
event - the report event.

pageStarted

public void pageStarted(ReportEvent event)(Code)

Receives notification that a page has started.

This prints the PageHeader. If this is the first page, the header is not printed if the pageheader style-flag DISPLAY_ON_FIRSTPAGE is set to false. If this event is known to be the last pageStarted event, the DISPLAY_ON_LASTPAGE is evaluated and the header is printed only if this flag is set to TRUE.

If there is an active repeating GroupHeader, print the last one. The GroupHeader is searched for the current group and all parent groups, starting at the current group and ascending to the parents. The first goupheader that has the StyleFlag REPEAT_HEADER set to TRUE is printed.

The PageHeader and the repeating GroupHeader are spooled until the first real content is printed. This way, the LogicalPage remains empty until an other band is printed.
Parameters:
event - Information about the event.

print
protected void print(ExpressionRuntime dataRow, Band band)(Code)
	Prints the given band at the current cursor position. Parameters: dataRow - the datarow for evaluating the band's value-expressions. Parameters: band - the band to be printed.

reportDone
public void reportDone(ReportEvent event)(Code)
	Receives notification that report generation has completed, the report footer was printed, no more output is done. This is a helper event to shut down the output service. Parameters: event - The event.

reportFinished
public void reportFinished(ReportEvent event)(Code)
	Receives notification that the report has finished. Prints the ReportFooter and forces the last pagebreak. Parameters: event - Information about the event.

reportInitialized
public void reportInitialized(ReportEvent event)(Code)

reportStarted
public void reportStarted(ReportEvent event)(Code)
	Receives notification that the report has started. Also invokes the start of the first page ... Layout and draw the report header after the PageStartEvent was fired. Parameters: event - the event.

setCurrentEvent
protected void setCurrentEvent(ReportEvent currentEvent)(Code)
	Sets the current event (also updates the report reference). Parameters: currentEvent - event.

setRenderer
public void setRenderer(Renderer renderer)(Code)

updateFooterArea
protected void updateFooterArea(ReportEvent event) throws ReportProcessingException(Code)

updateHeaderArea
protected void updateHeaderArea(ReportEvent event) throws ReportProcessingException(Code)

Methods inherited from org.jfree.report.function.AbstractFunction

public void groupFinished(ReportEvent event)(Code)(Java Doc)
public void groupStarted(ReportEvent event)(Code)(Java Doc)
public void itemsAdvanced(ReportEvent event)(Code)(Java Doc)
public void itemsFinished(ReportEvent event)(Code)(Java Doc)
public void itemsStarted(ReportEvent event)(Code)(Java Doc)
public void reportDone(ReportEvent event)(Code)(Java Doc)
public void reportFinished(ReportEvent event)(Code)(Java Doc)
public void reportInitialized(ReportEvent event)(Code)(Java Doc)
public void reportStarted(ReportEvent event)(Code)(Java Doc)

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