Sample JRXML Report - CUBA Platform. Report Generator

5.3. Sample JRXML Report

The example is also based the sample Library application, which source code is available on GitHub.

To use reports in your project, activate the reports item in the App components list on the Project properties page of CUBA Studio.

Open the Reports → Reports screen and click on the Import button to import the report. Choose Reports.zip in the project root directory. Two reports will appear in the table, one of them will be Book availability in department. This report displays the list of book publications in the selected department; the default output format is XLS. Let’s create the new JasperReports template for this report.

Report data structure.

Figure 65. Report data structure

Let’s consider report bands.

Header band - report header. It contains the dataset with the Groovy script which outputs the report external parameters value:
```
[['library_department_name' : params['library_department'].name]]
```

Data band outputs the list of book instances in the department passed as a parameter by running the following Groovy script:

import com.haulmont.cuba.core.global.AppBeans

def persistence = AppBeans.get('cuba_Persistence')
def tx = persistence.createTransaction()
try {
    def result = []

    def em = persistence.getEntityManager()
    def ltList = em.createQuery('select lt from library$LiteratureType lt').getResultList()
    ltList.each { lt ->
        def count = em.createQuery(''' select count(bi) from library$BookInstance bi where bi.libraryDepartment.id = ?1 and bi.bookPublication.book.literatureType.id = ?2 ''')
                .setParameter(1, params['library_department'])
                .setParameter(2, lt)
                .getSingleResult()
        def refCount = em.createQuery(''' select count(bi) from library$BookInstance bi where bi.libraryDepartment.id = ?1 and bi.bookPublication.book.literatureType.id = ?2 and bi.isReference = true''')
                .setParameter(1, params['library_department'])
                .setParameter(2, lt)
                .getSingleResult()

        result.add(['literature_type_name': lt.name,
                    'books_instances_amount': count,
                    'reference_books_instances_amount': refCount])
    }
    return result
} finally {
    tx.end()
}

This query uses the external report parameter - library_department. The parameter has the Entity type, however you can compare it directly with entity identifier fields; the conversion will be done automatically.

Report parameters.

The Parameters and Formats tab contains one declared report external parameter - Department:

Figure 66. Report parameters

When running the report, the user will have to enter this parameter. The department selection will be performed via the library$LibraryDepartment.lookup screen, available in the application.

Report template.

The Templates tab contains a single defined XLS template, loaded from BookAvailability.xls.

Create the new JRXML file with the following content:

BookAvailability.jrxml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.4.0.final using JasperReports Library version 6.4.1 -->
<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="books" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="535" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <property name="template.engine" value="tabular_template"/>
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <style name="Table_TH" mode="Opaque" backcolor="#066990">
 <box> <topPen lineWidth="0.5" lineColor="#000000"/> <bottomPen lineWidth="0.5" lineColor="#000000"/> </box>
    </style>
    <style name="Table_CH" mode="Opaque" forecolor="#FFFFFF" backcolor="#06618F" hTextAlign="Center" fontSize="12">
 <box> <topPen lineWidth="0.5" lineColor="#000000"/> <bottomPen lineWidth="0.5" lineColor="#000000"/> </box>
    </style>
    <style name="Table_TD" mode="Opaque" backcolor="#FFFFFF" hTextAlign="Center">
 <box> <topPen lineWidth="0.5" lineColor="#000000"/> <bottomPen lineWidth="0.5" lineColor="#000000"/> </box>
    </style>
    <subDataset name="Data">
        <field name="literature_type_name" class="java.lang.String"/>
        <field name="books_instances_amount" class="java.lang.Long"/>
        <field name="reference_books_instances_amount" class="java.lang.Long"/>
    </subDataset>
    <field name="library_department_name" class="java.lang.String"/>
    <title>
        <band height="72">
            <frame>
                <reportElement mode="Opaque" x="-20" y="-20" width="595" height="92" backcolor="#006699"/>
                <staticText>
                    <reportElement x="20" y="10" width="555" height="30" forecolor="#FFFFFF"/>
                    <textElement textAlignment="Center">
                        <font size="20" isBold="true"/>
                    </textElement>
                    <text><![CDATA[Book availability in department]]></text>
                </staticText>
                <textField>
                    <reportElement x="20" y="50" width="555" height="30" forecolor="#FFFFFF"/>
                    <box>
                        <pen lineWidth="1.0" lineColor="#FFFFFF"/>
                        <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                        <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                        <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                        <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                    </box>
                    <textElement textAlignment="Center" verticalAlignment="Middle">
                        <font fontName="SansSerif" size="20" isBold="true"/>
                    </textElement>
                    <textFieldExpression><![CDATA[$F{library_department_name}]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </title>
    <detail>
        <band height="204">
            <componentElement>
                <reportElement x="0" y="4" width="555" height="200" forecolor="#FFFFFF">
                    <property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.VerticalRowLayout"/>
                    <property name="com.jaspersoft.studio.table.style.table_header" value="Table_TH"/>
                    <property name="com.jaspersoft.studio.table.style.column_header" value="Table_CH"/>
                    <property name="com.jaspersoft.studio.table.style.detail" value="Table_TD"/>
                    <property name="net.sf.jasperreports.export.headertoolbar.table.name" value=""/>
                    <property name="com.jaspersoft.studio.components.autoresize.proportional" value="true"/>
                </reportElement>
                <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                    <datasetRun subDataset="Data">
                        <dataSourceExpression><![CDATA[$P{REPORTING}.dataset("Data")]]></dataSourceExpression>
                    </datasetRun>
                    <jr:column width="188">
                        <jr:columnHeader style="Table_CH" height="30">
                            <staticText>
                                <reportElement x="0" y="0" width="188" height="30" forecolor="#FFFFFF"/>
                                <box>
                                    <pen lineColor="#FFFFFF"/>
                                </box>
                                <textElement textAlignment="Center" verticalAlignment="Middle">
                                    <font fontName="SansSerif" size="12" isBold="true"/>
                                </textElement>
                                <text><![CDATA[Literature Type]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="Table_TD" height="30">
                            <textField>
                                <reportElement x="0" y="0" width="188" height="30"/>
                                <textElement textAlignment="Center" verticalAlignment="Middle">
                                    <font fontName="SansSerif" size="12"/>
                                </textElement>
                                <textFieldExpression><![CDATA[$F{literature_type_name}]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                    <jr:column width="186">
                        <jr:columnHeader style="Table_CH" height="30">
                            <staticText>
                                <reportElement x="0" y="0" width="186" height="30" forecolor="#FFFFFF"/>
                                <textElement textAlignment="Center" verticalAlignment="Middle">
                                    <font fontName="SansSerif" size="12" isBold="true"/>
                                </textElement>
                                <text><![CDATA[Book Amount]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="Table_TD" height="30">
                            <textField>
                                <reportElement x="0" y="0" width="186" height="30"/>
                                <textElement textAlignment="Center" verticalAlignment="Middle">
                                    <font size="12"/>
                                </textElement>
                                <textFieldExpression><![CDATA[$F{books_instances_amount}]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                    <jr:column width="181">
                        <jr:columnHeader style="Table_CH" height="30">
                            <staticText>
                                <reportElement x="0" y="0" width="181" height="30" forecolor="#FFFFFF"/>
                                <textElement textAlignment="Center" verticalAlignment="Middle">
                                    <font fontName="SansSerif" size="12" isBold="true"/>
                                </textElement>
                                <text><![CDATA[Reference Book Amount]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="Table_TD" height="30">
                            <textField isBlankWhenNull="false">
                                <reportElement x="0" y="0" width="181" height="30" forecolor="#000000"/>
                                <textElement textAlignment="Center" verticalAlignment="Middle">
                                    <font size="12"/>
                                </textElement>
                                <textFieldExpression><![CDATA[$F{reference_books_instances_amount}]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                </jr:table>
            </componentElement>
        </band>
    </detail>
    <pageFooter>
        <band height="17">
            <textField>
                <reportElement mode="Opaque" x="0" y="4" width="515" height="13" backcolor="#E6E6E6"/>
                <textElement textAlignment="Right"/>
                <textFieldExpression><![CDATA["Page "+$V{PAGE_NUMBER}+" of"]]></textFieldExpression>
            </textField>
            <textField evaluationTime="Report">
                <reportElement mode="Opaque" x="515" y="4" width="40" height="13" backcolor="#E6E6E6"/>
                <textFieldExpression><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression>
            </textField>
            <textField pattern="M/d/yy">
                <reportElement x="0" y="4" width="280" height="13"/>
                <textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
            </textField>
        </band>
    </pageFooter>
</jasperReport>

The table in this template is bound to a subDataset. The title element uses the Header band data directly. You can open the template file in JasperReports visual designer to see the report layout.

Upload the new template to the application, selecting any output type, and make it default:

Figure 67. Report templates

Run the report to make sure it works:

Figure 68. Report result