org.jfree.report.function
Class NegativeNumberPaintChangeFunction

java.lang.Object
  |
  +--org.jfree.report.function.AbstractExpression
        |
        +--org.jfree.report.function.AbstractFunction
              |
              +--org.jfree.report.function.AbstractElementFormatFunction
                    |
                    +--org.jfree.report.function.NegativeNumberPaintChangeFunction

public class NegativeNumberPaintChangeFunction

extends AbstractElementFormatFunction

This function changes the color of the named elements according to the current value of a numeric field. If the value of the field is not numeric (or null), the positive color is set.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

NegativeNumberPaintChangeFunction()

Method Summary

java.lang.String	getField()
java.awt.Color	getNegativeColor()
java.awt.Color	getPositiveColor()
java.lang.Object	getValue() Return the current expression value.
java.awt.Color	getZeroColor()
protected void	processRootBand(Band b)
protected java.awt.Color	selectColor()
void	setField(java.lang.String field)
void	setNegativeColor(java.awt.Color negativeColor)
void	setPositiveColor(java.awt.Color positiveColor)
void	setZeroColor(java.awt.Color zeroColor)

Methods inherited from class org.jfree.report.function.AbstractElementFormatFunction

getElement, groupFinished, groupStarted, itemsAdvanced, pageCanceled, pageFinished, pageRolledBack, pageStarted, reportFinished, reportStarted, setElement

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

clone, itemsFinished, itemsStarted, reportDone, reportInitialized

Methods inherited from class org.jfree.report.function.AbstractExpression

getDataRow, getDependencyLevel, getInstance, getName, getReportConfiguration, getResourceBundleFactory, getRuntime, isActive, setActive, setDependencyLevel, setName, setRuntime

Methods inherited from class java.lang.Object

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

Constructor Detail

NegativeNumberPaintChangeFunction

public NegativeNumberPaintChangeFunction()

Method Detail

processRootBand

protected void processRootBand(Band b)

Overrides:

processRootBand in class AbstractElementFormatFunction

selectColor

protected java.awt.Color selectColor()

getPositiveColor

public java.awt.Color getPositiveColor()

setPositiveColor

public void setPositiveColor(java.awt.Color positiveColor)

getNegativeColor

public java.awt.Color getNegativeColor()

setNegativeColor

public void setNegativeColor(java.awt.Color negativeColor)

getZeroColor

public java.awt.Color getZeroColor()

setZeroColor

public void setZeroColor(java.awt.Color zeroColor)

getField

public java.lang.String getField()

setField

public void setField(java.lang.String field)

getValue

public java.lang.Object getValue()

Description copied from interface: Expression

Return the current expression value.

The value depends (obviously) on the expression implementation.

Tags copied from interface: Expression

Returns:

the value of the function.