Boolean to integer customconverter!!

[archana_mannepalli]

Hi
I tried to create a custom converter,hoping to convert from Boolean to Integer.
but in the converterclass the mothod "getAsObject" is not invoking..

and am getting exception-javax.faces.convert.ConverterException: java.lang.NullPointerException

can anyone plese help me.

[pmuir]

Show your code and the stack trace.

[archana_mannepalli]

hi This is my class

package org.domain.Portal.entity;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.ConverterException;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.faces.Converter;
import org.jboss.seam.annotations.intercept.BypassInterceptors;
import org.jboss.seam.log.Log;


@Name("tst")
@Scope(ScopeType.SESSION)
@BypassInterceptors
@Converter

public class Tst extends com.sun.faces.renderkit.html_basic.CheckboxRenderer implements javax.faces.convert.Converter {

@Logger private Log log;

public Object getAsObject(FacesContext arg0, UIComponent arg1, String arg2) throws ConverterException {
try {
log.warn("MyConverter.getAsObject action called");
return (arg2 == null || arg2.equals("") || arg2.equals("0") || arg2.equals("false") ? new Integer(0) : new Integer(1));
} catch (Exception e) {
throw new ConverterException(e);
}
}

public String getAsString(FacesContext arg0, UIComponent arg1, Object arg2) throws ConverterException {
try {

log.warn("MyConverter.getAsString action called: "+arg2);

if (arg2 instanceof Boolean)

{
log.warn("if getAsString action called"+arg2);
return (arg2 == null || ((Boolean)arg2).equals(false) ? "0" :"1");

}
else{
log.warn("else getAsString action called"+arg2);
return (arg2 == null || ((Integer)arg2).intValue() == 0 ? "0" : "1");

}
} catch (Exception e) {
throw new ConverterException(e);
}


}




}

[archana_mannepalli]

and i tried to use the converter in XTHML in this way


<s:decorate id="activeDecoration" template="layout/edit.xhtml">
<ui:define name="label">Active</ui:define>
<h:selectBooleanCheckbox id="active" value="#{roleHome.instance.active}" converter="#{tst}" >

<a:support event="onselect" reRender="activeDecoration" />
</h:selectBooleanCheckbox>

</s:decorate>

[nickarls]

I think the not-being-called it's a JSF-issue, check the sun forums, I have a feeling it comes up frequently there. You could do the conversion later (in getter/setter, or as a custom hibernate field (if that is an option)

[archana_mannepalli]

ok
thanQ for ur immediate reply

[archana_mannepalli]

i am not getting any exception in stacktrace

but in ui this exception is throwing "RoleEdit.xhtml @48,109 value="#{roleHome.instance.active}": java.lang.IllegalArgumentException: argument type mismatch "

plese help me