Hello,
I want to print my report to pdf and it did already work though I got an
OutOfMemoryException.
Then I found some posts where the JRVirtualizer was mentioned and played a
bit with it. But it did not really work and I erased it from my code.
Now I can't get the report to work properly anymore. I can only get it to
work with one item but if I want to add more rows I get the OutOfMemory
Exception again.
It doesn't make much sense to me and I can't really get my hand on what is
really wrong.
Hope someone can point me in the right way!
Thanks a lot!
Karola
Here's a bit of code:
The method printing the report to pdf:
public void generatePDF(JobChart jobChart) throws IOException, JRException
{
Object[] objects = new Object[]{jobChart};
Map parameters = new HashMap();
...
response.setContentType("application/pdf");
JasperRunManager.runReportToPdfStream(
getClass().getClassLoader().getResourceAsStream("MasterJobChart.jasper"),
response.getOutputStream(),
parameters,
new JRBeanArrayDataSource(objects)
);
}
The MasterReport with the problematic subreport in the detail band:
<?xml version="1.0" encoding="UTF-8" ?>
<!-- Created with iReport - A designer for JasperReports -->
<!DOCTYPE jasperReport PUBLIC "//JasperReports//DTD Report Design//EN" "
http://jasperreports.sourceforge.net/dtds/jasperreport.dtd";>
<jasperReport
name="MasterJobChart"
columnCount="1"
printOrder="Vertical"
orientation="Landscape"
pageWidth="2168"
pageHeight="1100"
columnWidth="2090"
columnSpacing="0"
leftMargin="40"
rightMargin="38"
topMargin="20"
bottomMargin="20"
whenNoDataType="NoPages"
isTitleNewPage="false"
isSummaryNewPage="false">
<property name="ireport.scriptlethandling" value="0" />
<property name="ireport.encoding" value="UTF-8" />
<import value="java.util.*" />
<import value="net.sf.jasperreports.engine.*" />
<import value="net.sf.jasperreports.engine.data.*" />
<field name="jobs" class="java.util.Collection"/>
<field name="calendar" class="java.util.Collection"/>
<columnHeader>
<band height="40" isSplitAllowed="true" >
...
<subreport isUsingCache="true">
<reportElement
x="240"
y="26"
width="1849"
height="14"
key="subreport-1"
isRemoveLineWhenBlank="true"/>
<dataSourceExpression><![CDATA[new
net.sf.jasperreports.engine.data.JRBeanCollectionDataSource((Collection)
$F{calendar})]]></dataSourceExpression>
<subreportExpression
class="java.lang.String"><![CDATA["Calendar.jasper"]]></subreportExpression>
</subreport>
...
</band>
</columnHeader>
<detail>
<band height="1020" isSplitAllowed="true" >
<subreport isUsingCache="true">
<reportElement
x="0"
y="0"
width="2090"
height="7"
key="subreport-2"
isPrintWhenDetailOverflows="true"/>
<dataSourceExpression><![CDATA[new
net.sf.jasperreports.engine.data.JRBeanCollectionDataSource((Collection)
$F{jobs})]]></dataSourceExpression>
<subreportExpression
class="java.lang.String"><![CDATA["JobChart.jasper"]]></subreportExpression>
</subreport>
</band>
</detail>
</jasperReport>
And the corresponding subreport:
<?xml version="1.0" encoding="UTF-8" ?>
<!-- Created with iReport - A designer for JasperReports -->
<!DOCTYPE jasperReport PUBLIC "//JasperReports//DTD Report Design//EN" "
http://jasperreports.sourceforge.net/dtds/jasperreport.dtd";>
<jasperReport
name="JobChart"
columnCount="1"
printOrder="Vertical"
orientation="Landscape"
pageWidth="2090"
pageHeight="7"
columnWidth="2090"
columnSpacing="0"
leftMargin="0"
rightMargin="0"
topMargin="0"
bottomMargin="0"
whenNoDataType="NoPages"
isTitleNewPage="false"
isSummaryNewPage="false">
<property name="ireport.scriptlethandling" value="0" />
<property name="ireport.encoding" value="UTF-8" />
<import value="java.util.*" />
<import value="net.sf.jasperreports.engine.*" />
<import value="net.sf.jasperreports.engine.data.*" />
<field name="jobname" class="java.lang.String"/>
<field name="jobID" class="java.lang.String"/>
<field name="days" class="java.util.Collection"/>
<detail>
<band height="7" isSplitAllowed="true" >
<textField isStretchWithOverflow="false"
isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"
hyperlinkTarget="Self" >
<reportElement
x="0"
y="0"
width="200"
height="7"
key="textField-1"/>
<box topBorder="None"
topBorderColor="#000000" leftBorder="Thin" leftBorderColor="#000000"
rightBorder="Thin" rightBorderColor="#000000" bottomBorder="Thin"
bottomBorderColor="#000000"/>
<textElement textAlignment="Left"
verticalAlignment="Middle" rotation="None" lineSpacing="Single">
<font fontName="SansSerif"
size="5" isBold="false" isItalic="false" isUnderline="false"
isStrikeThrough="false" />
</textElement>
<textFieldExpression
class="java.lang.String"><![CDATA[$F{jobname}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="false"
isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None"
hyperlinkTarget="Self" >
<reportElement
x="200"
y="0"
width="40"
height="7"
key="textField-2"/>
<box topBorder="None"
topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000"
rightBorder="Thin" rightBorderColor="#000000" rightPadding="5"
bottomBorder="Thin" bottomBorderColor="#000000"/>
<textElement
textAlignment="Right">
<font size="5"/>
</textElement>
<textFieldExpression
class="java.lang.String"><![CDATA[$F{jobID}]]></textFieldExpression>
</textField>
<subreport isUsingCache="true">
<reportElement
x="240"
y="0"
width="1849"
height="7"
key="subreport-1"/>
<dataSourceExpression><![CDATA[new
net.sf.jasperreports.engine.data.JRBeanCollectionDataSource((Collection)
$F{days})]]></dataSourceExpression>
<subreportExpression
class="java.lang.String"><![CDATA["Days.jasper"]]></subreportExpression>
</subreport>
</band>
</detail>
</jasperReport>
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