s:convertEntity and toString method

[hvico]

Hello SEAM community!

First of all I must say I am a SEAM newbie, so maybe I am just misusing things. I am using SEAM 2.0.2.GA

The thing is, I want to dinamically generate a radiobutton selection according to the addresses of a person (Person entity has a OneToMany relationship with Address entity).

So this is my code:

xhtml:

<h:selectOneRadio value="#{personHome.instance.address}"  required="true" >
        <s:selectItems value="#{adressList.resultList}" var="adress" label="#{adress.street}" />
        <s:convertEntity />
</h:selectOneRadio>

This works perfectly, but the problem appears when I add a toString() method to my Address entity (I add this method to use it somewhere else, it is not related to this radiobuttons). It seems that s:convertEntity fails when I define that method.

This is my address entity's toString method:

/**
* @return
* @see java.lang.String#toString()
*/
public String toString() {
        return streetNumber + " " + street + " - " + city + "/" + country;
}   

This is the stack trace of the exception I get:

java.lang.IllegalArgumentException: Cannot convert 1234 TestAddress - TestCity/TestCountry of type class org.domain.entity.Direccion to class org.domain.entity.Direccion_$$_javassist_3
        at org.jboss.el.lang.ELSupport.coerceToType(ELSupport.java:358)
        at org.jboss.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:46)
        at org.jboss.seam.el.SeamExpressionFactory.coerceToType(SeamExpressionFactory.java:70)
        at com.sun.faces.renderkit.html_basic.RadioRenderer.renderOption(RadioRenderer.java:87)
        at com.sun.faces.renderkit.html_basic.SelectManyCheckboxListRenderer.encodeEnd(SelectManyCheckboxListRenderer.java:146)
        at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
        at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java:190)
        at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.java:166)
        at org.jboss.seam.ui.renderkit.DecorateRendererBase.doEncodeChildren(DecorateRendererBase.java:103)
        at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.java:92)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
        at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
        at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:79)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
        at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
        at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:199)
        at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:194)
        at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
        at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
        at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)

Any suggestion?

Many thanks!

[hvico]

Sorry, I think that toString has nothing to do with this problem. Someway it worked it a test case, but now it does not work and I get the same exception (but of course I do not see the object in a human-readable way because I removed the toString method).

I have no problems when a define a new Person, the radiobuttons appear perfectly. The problem occurs when I try to edit a person, then I get the exception listed above.

Thanks!

[hvico]

The exception which I posted also is not traslated (i forgot to traslate the entity name to english in my first post). The exception would be this one:

java.lang.IllegalArgumentException: Cannot convert 1234 TestAddress - TestCity/TestCountry of type class org.domain.entity.Address to class org.domain.entity.Address_$$_javassist_3
        at org.jboss.el.lang.ELSupport.coerceToType(ELSupport.java:358)
        at org.jboss.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:46)
        at org.jboss.seam.el.SeamExpressionFactory.coerceToType(SeamExpressionFactory.java:70)
        at com.sun.faces.renderkit.html_basic.RadioRenderer.renderOption(RadioRenderer.java:87)
        at com.sun.faces.renderkit.html_basic.SelectManyCheckboxListRenderer.encodeEnd(SelectManyCheckboxListRenderer.java:146)
        at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
        at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java:190)
        at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.java:166)
        at org.jboss.seam.ui.renderkit.DecorateRendererBase.doEncodeChildren(DecorateRendererBase.java:103)
        at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.java:92)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
        at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
        at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:79)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
        at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
        at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:199)
        at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:194)
        at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
        at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
        at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
        at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)

[v.masterov]

There is an attempt to cast Address to proxy class of Address. Is address have lazy association on Person entity ? Please, show code of the Person class. Whether has ancestor at the class Address ?

[hvico]

Yes, that was my problem. The association was mapped as lazy. Changed it to eager and now it works.

Thank you very much!

Can you please explain why can't I use a lazy association with this radio buttons? Because it seems to work fine using a combo box (selectOneMenu)

Thanks again!

[hvico]

Horacio Vico wrote on Nov 16, 2008 22:09:


...
Can you please explain why can't I use a lazy association with this radio buttons? Because it seems to work fine using a combo box (selectOneMenu)

Thanks again!

Anyone? Thanks!