Defining "false" in an XML BeanDefinition for JasperReports

[Deakin]

Hi All,

This is a trivial question - I'm sorry to be asking it, but I can't seem to find an answer anywhere. It is probably more of a core container question, but it will be of most use to JasperReports users such as myself.

I have a bean called "report" as defined below

<bean id="report"
			class="org.springframework.web.servlet.view.jasperreports.JasperReportsMultiFormatView">
		<property name="url"><value>/WEB-INF/reports/report.jrxml</value></property>
		<property name="exporterParameters">
			<map>
		    	<entry key="net.sf.jasperreports.engine.export.JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN">
		        	<value>false</value>
		      	</entry>
		    </map>
		</property> 
		<property name="contentDispositionMappings">
            <props>
                <prop key="html">inline; filename=report.html</prop>
                <prop key="csv">inline; filename=report.csv</prop>
                <prop key="pdf">inline; filename=report.pdf</prop>
                <prop key="xls">inline; filename=report.xls</prop>
                <prop key="xml">inline; filename=report.xml</prop>
                <prop key="ser">inline; filename=report.ser</prop>
            </props>
        </property>
	</bean>

It is a pretty standard JR MultiView report bean, and as you can see I am trying to disable alignment using images.

Everything works well, except for the "false" in the exporterParameters map. When a JR HTML rendering bean is created, Spring tries to set the IS_USING_IMAGES_TO_ALIGN to "false" and I get a ClassCastException for java.lang.String.

Ok, so I am defining false incorrectly in the map. I tried Boolean.FALSE and got the same result, so I seem to be missing something fundamental about using <map> in a bean definition. I had a poke around and couldn't find an example of using a boolean in a map in a bean definition.

My trivial question is: How do I define false here? That is, how do I make it explicit to Spring that I mean boolean false and not "false"? Or if I am waaaay off track, please let me know.

Thanks for your help,
Deakin

[Deakin]

Ok, after some more trawling, I have the answer - posted here for the future reference of others. It seems so simple now (but it always does right?).

This what you need:

<property name="exporterParameters">
			<map>
		    	<entry key="net.sf.jasperreports.engine.export.JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN">
		        	<value type="boolean">false</value>
		      	</entry>
		    </map>
		</property>

The magic is in the type="boolean".

Cheers,
Deakin.