Indexed Properties & Struts Validator

[Frederic Dernbach <fr...@free.fr>]

I would like to know how to use the Struts Validator with indexed
properties.

I cannot display error messages under the field (but the validator
obviously works and performs validation). 

Below is the relevant parts of my JSP ,valdiation.xml file and form :
Upon submission of the JSP's form, I can see the validator does not
validate the 'orderNumber' property if it is empty. But no error
messages is displayed.

Can an error message be displayed under the input field if the property
being validated is indexed ?

If I try to modify the validation.xml in order to include :
indexedListProperty="parameter" rather than
indexedListProperty="parameters" (which I would image is the good thing
to do in order to match the "parameter[i].orderNumber" property name),
then I get an exception when validation happens.
java.lang.NoSuchMethodException: Property 'parameter' has no getter
method
org.apache.commons.beanutils.PropertyUtils.getSimpleProperty(PropertyUtils.java:1180)
org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUtils.java:772)
org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:801)
org.apache.commons.validator.Validator.validateField(Validator.java:487)
org.apache.commons.validator.Validator.validate(Validator.java:582)
org.apache.struts.validator.ValidatorActionForm.validate(ValidatorActionForm.java:121)
com.rubis.web.system.action.SubmitStrategyAction.save(SubmitStrategyAction.java:71)

Can anybody let me know what's wrong with my code ?

Fred


**** JSP ****
<table>
        <th align="center">
        <bean:message key="rubis.strategy.parameters.orderNumber"/>
        </th>
.../...                                         
        <logic:iterate  name="strategyForm"
                        property="parameters"
                        id="parameter" 
                       
type="com.rubis.web.system.bean.ParamInterfaceElementBean">
                <tr>
                <td align="center">
                        <html:text      name="parameter"
                                        property="orderNumber"
                                        indexed="true"/>
                </td>
                .../...
                </tr>           
        </logic:iterate>
</table>

**** validation.xml ****
<field
        property="orderNumber"
        indexedListProperty="parameters"
        depends="required,integer,positive">
        <arg0 key="rubis.strategy.label"/>
</field>

*** form setter and getter methods ***

public LinkedList getParameters() {
	return parameters;
}
	
public void setParameters(LinkedList parameters) {
	this.parameters = parameters;
}	

public ParamInterfaceElementBean getParameter(int index) {
	while( index >= parameters.size() ){
		parameters.add(new ParamInterfaceElementBean());
	}
	return (ParamInterfaceElementBean) parameters.get(index);
}

public void setParameter(int index, ParamInterfaceElementBean parameter)
{
	while ( index >= parameters.size() ){
		parameters.add(new ParamInterfaceElementBean());
	}
	parameters.set(index, parameter);
}



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