Conditional Horizontal line in jasperreport between results - jasper-reports

Question

I'm using jasperreport 4.7.0
I have a query where I order by name then date .
Now the clients wants that when the name changes that we add an horizontal line (see attached img - red line)
Is there a way to accomplish this without duplicating the query and the fields ?
Result :

Answer 1

For solving your task you can use Data Grouping.
The possible steps (there are a lot of way to reach your target) for adding line are:
Create the report Group (via context menu Add Report Group in iReport) on field
Add Group Footer Band
Add Rectangle element to the Group Footer Band
Set Height, Forecolor and Backcolor for this Rectangle - drawing "red pencil line"
The sample:
<?xml version="1.0" encoding="UTF-8"?>
<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="line_in_group" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="f1394ead-7ad6-4371-979d-5a13d1bdde4d">
<queryString>
<![CDATA[SELECT id, city, street FROM address ORDER BY city]]>
</queryString>
<field name="ID" class="java.lang.Integer"/>
<field name="CITY" class="java.lang.String"/>
<field name="STREET" class="java.lang.String"/>
<group name="cityGroup">
<groupExpression><![CDATA[$F{CITY}]]></groupExpression>
<groupFooter>
<band height="2">
<rectangle>
<reportElement uuid="6564e743-2a45-4b51-89a5-e3ec6aee291f" x="0" y="0" width="300" height="2" forecolor="#FF0000" backcolor="#FF0000"/>
</rectangle>
</band>
</groupFooter>
</group>
<columnHeader>
<band height="20" splitType="Stretch">
<staticText>
<reportElement uuid="77860b22-95f6-41b6-955a-f8991843e221" x="0" y="0" width="100" height="20"/>
<box leftPadding="10">
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement textAlignment="Center">
<font isBold="true" isItalic="true"/>
</textElement>
<text><![CDATA[ID]]></text>
</staticText>
<staticText>
<reportElement uuid="77860b22-95f6-41b6-955a-f8991843e221" x="100" y="0" width="100" height="20"/>
<box leftPadding="10">
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement textAlignment="Center">
<font isBold="true" isItalic="true"/>
</textElement>
<text><![CDATA[City]]></text>
</staticText>
<staticText>
<reportElement uuid="77860b22-95f6-41b6-955a-f8991843e221" x="200" y="0" width="100" height="20"/>
<box leftPadding="10">
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement textAlignment="Center">
<font isBold="true" isItalic="true"/>
</textElement>
<text><![CDATA[Street]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="20" splitType="Stretch">
<textField>
<reportElement uuid="7e375aa3-fab5-4761-bab9-a0570a5442b1" x="0" y="0" width="100" height="20"/>
<box leftPadding="10">
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$F{ID}]]></textFieldExpression>
</textField>
<textField>
<reportElement uuid="7e375aa3-fab5-4761-bab9-a0570a5442b1" x="100" y="0" width="100" height="20"/>
<box leftPadding="10">
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$F{CITY}]]></textFieldExpression>
</textField>
<textField>
<reportElement uuid="7e375aa3-fab5-4761-bab9-a0570a5442b1" x="200" y="0" width="100" height="20"/>
<box leftPadding="10">
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$F{STREET}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
The result will be (via preview in iReport):
In this sample I've create a group for the field CITY.