filling report help

[jesus_jfri]

hey,  i am filling my report using a parameter(  class  =   net.sf.jasperreports.engine.data.JRBeanCollectionDataSource)
 

the object what i am sending has 2 atributes:   class object {  private int code, private float value ...}

then in my table in jasper report , i used the dataset with 2 fields(code and value),

i changed the class of this fields ( by defect was String)  to java.lang.Integer and java.lang.Float

but the report does not work  ( i used this method when i have objects with String atributes and it works very fine )

 

Any idea?? Thanks

 

[hozawa]

May be it's because int != Integer and float != Float. Just fix your error and your report should work. Can't say anything further because you haven't proviced any information on how your report does not work nor any error message.

[jesus_jfri]

the error is:

net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Error retrieving field value from bean: .
    at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:872)
    at net.sf.jasperreports.components.table.fill.FillTableSubreport.prepareSubreport(FillTableSubreport.java:166)
    at net.sf.jasperreports.components.table.fill.FillTable.prepare(FillTable.java:417)
    at net.sf.jasperreports.engine.fill.JRFillComponentElement.prepare(JRFillComponentElement.java:150)
    at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:330)
    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:382)
    at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:357)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2031)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:755)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:262)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:122)
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:551)
    at net.sf.jasperreports.engine.fill.BaseReportFiller.fill(BaseReportFiller.java:411)
    at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:122)
    at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:667)
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:983)

Caused by: java.lang.NoSuchMethodException: Unknown property ' ' on class 'class MyObject'
    at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1313)
    at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:762)
    at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:837)
    at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:426)
    at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:112)
    ... 14 more

[hozawa]

There seems to be something wrong with you code but as an easy answer, why not just use String and convert it to Integer and Float is Expression.

[jesus_jfri]

i solved that, i had no problem, i did not know why my report did not work but i solve deleting and making again the report ( jrxml )