How to split to new page when isIgnorePagination? - jasper-reports

Question

Using Jaspersoft studio 6.2.
A main report with detail and summary bands. A sub report in the summary band of the main report. The main report itself (when without the subreport) will split into two pages, so I checked isIgnorePagination and the main report (when without subreport) comes out as single page.
The subreport itself split to 9 pages by default, when I checked isIgnorePagination it comes out as one single page. Fine. When I put the subreport in the main report with all the settings above, it comes out as one single page. How can I make the main report in one page and subreport in another page (so two pages in total)?
EDIT
Tried break component, it works but there is still a problem. The page height of the main report has to be set to be big enough to include both main report and subreport, otherwise there will be more than 2 pages, but that will leave too much blank at the bottom of the main report. Below is an example to show what I meant.
main report:
<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.2.0.final using JasperReports Library version 6.2.0 -->
<!-- 2016-04-26T16:13:43 -->
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="test11" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="ce9d78e1-7194-4754-aaf9-93e871d2a5cf">
<property name="com.jaspersoft.studio.data.sql.tables" value=""/>
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="datamart"/>
<property name="com.jaspersoft.studio.unit." value="pixel"/>
<queryString>
<![CDATA[select 1 as a
union all select 2 as a]]>
</queryString>
<field name="a" class="java.lang.Integer"/>
<variable name="Total" class="java.lang.Integer" calculation="Sum">
<variableExpression><![CDATA[$F{a}]]></variableExpression>
</variable>
<background>
<band splitType="Stretch"/>
</background>
<columnHeader>
<band height="50">
<staticText>
<reportElement x="54" y="0" width="100" height="30" uuid="e9116c0f-c827-4cb3-95d1-9155f4be7cb7"/>
<text><![CDATA[a]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="49" splitType="Stretch">
<textField>
<reportElement x="50" y="10" width="100" height="30" uuid="79fa53fa-48e2-43d0-96a4-0cda54e95c25"/>
<textFieldExpression><![CDATA[$F{a}]]></textFieldExpression>
</textField>
</band>
</detail>
<summary>
<band height="297" splitType="Stretch">
<textField>
<reportElement mode="Opaque" x="52" y="16" width="100" height="30" backcolor="#C4E5F6" uuid="2a393151-947e-4f1d-ab24-e456ce56bd19"/>
<textFieldExpression><![CDATA[$V{Total}]]></textFieldExpression>
</textField>
<subreport>
<reportElement x="62" y="97" width="200" height="200" uuid="b342cbae-597b-4ca5-b00d-3a4d047910f8"/>
<connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
<subreportExpression><![CDATA["test12.jasper"]]></subreportExpression>
</subreport>
<break>
<reportElement x="0" y="60" width="619" height="1" uuid="ccc2155d-6a2e-4c23-a972-88bb871cb17d"/>
</break>
</band>
</summary>
</jasperReport>
sub report
<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.2.0.final using JasperReports Library version 6.2.0 -->
<!-- 2016-04-26T16:14:10 -->
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="test12" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="3601f813-f6da-4105-a4d8-5c1ee1dd54d4">
<property name="com.jaspersoft.studio.data.sql.tables" value=""/>
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="datamart"/>
<queryString>
<![CDATA[select 10 as col
union all select 20 as col]]>
</queryString>
<field name="col" class="java.lang.Integer"/>
<variable name="total" class="java.lang.Integer" calculation="Sum">
<variableExpression><![CDATA[$F{col}]]></variableExpression>
</variable>
<background>
<band splitType="Stretch"/>
</background>
<columnHeader>
<band height="61" splitType="Stretch">
<staticText>
<reportElement x="73" y="0" width="100" height="30" uuid="5f2cfa26-c7ab-413e-94cf-80c1f1b288eb"/>
<text><![CDATA[col]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="125" splitType="Stretch">
<textField>
<reportElement x="73" y="90" width="100" height="30" uuid="3af983fb-00e2-4bb9-9e91-2d2214ca95d7"/>
<textFieldExpression><![CDATA[$F{col}]]></textFieldExpression>
</textField>
</band>
</detail>
<summary>
<band height="49" splitType="Stretch">
<textField>
<reportElement mode="Opaque" x="74" y="19" width="100" height="30" backcolor="#FFCC33" uuid="b333fb92-8aa8-4f00-9a1a-db24657d5521"/>
<textFieldExpression><![CDATA[$V{total}]]></textFieldExpression>
</textField>
</band>
</summary>
</jasperReport>
There is a break in the main report, this works fine, 2 pages one for the main report and one for the sub report, but the main report leaves too much blank at the bottom, if I reduce the height of the main report (e.g. to 400 pixel), there will be more than 2 pages. Is it possible to get just 2 pages without too much blank?

Answer 1

To achieve different size for each page you need to use the attribute, isIgnorePagination="true" on the jasperReport tag.
When isIgnorePagination is true the break element is ignored by default you need to enabled it by setting this property net.sf.jasperreports.page.break.no.pagination to apply
ignore - page breaks are ignored in non paginated reports. (default) apply -
page breaks are honoured in non paginated reports.
<property name="net.sf.jasperreports.page.break.no.pagination" value="apply"/>
This will enable the break component and you can manuale break to new page using
<break>
<reportElement x="0" y="0" width="100" height="1" uuid="604c65b5-1127-4874-a63c-9b1a98dbf25c"/>
</break>