org.jfree.report.function
Class HideNullValuesFunction

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

public class HideNullValuesFunction

extends AbstractElementFormatFunction

Hides the specified elements if the given field contains empty strings or zero numbers.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

HideNullValuesFunction()

Method Summary

java.lang.String	getField()
java.lang.Object	getValue() Return the current expression value.
protected boolean	isVisible(java.lang.Object value)
protected void	processRootBand(Band b)
void	setField(java.lang.String field)

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

HideNullValuesFunction

public HideNullValuesFunction()

Method Detail

getField

public java.lang.String getField()

setField

public void setField(java.lang.String field)

processRootBand

protected void processRootBand(Band b)

Overrides:

processRootBand in class AbstractElementFormatFunction

isVisible

protected boolean isVisible(java.lang.Object value)

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.