i have a SEAM 2 application and i have a strange situation. I'm developing with Eclipse Indigo, and i need to create a page with a grid where each row has a button that display a popup window with a list and you can choose one item of the list with a link and the value selected is shown in the row.
So i have this component:
@Name("paramContHome")
@Scope(ScopeType.CONVERSATION)
public class ParamContHome extends KubeDAO<ParametroSistema>{
private static final long serialVersionUID = 1L;
@In
private LoginUser loginUser;
@In(required=false,create=true)
private CuentaContHome cuentaContHome;
public void load(){
try{
setInstance(getEntityManager().find(ParametroSistema.class, prctId));
}catch (Exception e) {
clearInstance();
setInstance(new ParametroSistema());
}
}
public void selCuentaParam(ParametroSistema par) {
setSelParam(par);
cuentaContHome.getCuentasList();
}
public void setCuentaParam(CuentaContable cta) {
selParam.setValorNum(cta.getId().floatValue());
selParam.setSelObj(cta);
}
...
}
That contains the methods that i'm trying to call from xhtml page. This is the xhtml page:
<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:s="http://jboss.com/products/seam/taglib"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:a="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich"
xmlns:p="http://primefaces.prime.com.tr/ui"
template="/layout/templateKu.xhtml">
<ui:define name="body">
<rich:panel>
<f:facet name="header">#{app.paramact_head}</f:facet>
<rich:spacer height="20" />
<h:form id="formA">
<p:growl globalOnly="true" sticky="false" life="3000" />
<p:focus />
<a:queue name="q1" />
<rich:dataTable var="res" value="#{paramContHome.resultList}"
rendered="#{not empty paramContHome.resultList}" rows="10"
align="center" rowClasses="tableInfo1 tableInfo2"
headerClass="tablaHeader" footerClass="tableScroll">
<f:facet name="header">#{app.paramact_list}</f:facet>
<rich:column filterBy="#{res.nombre}" filterEvent="onkeyup">
<f:facet name="header">#{app.paramact_nombre}</f:facet>
<h:outputText value="#{res.nombre}" />
</rich:column>
<rich:column>
<f:facet name="header">#{app.transferencia_valornum}</f:facet>
<h:inputText value="#{res.selObj.nombre}" size="20" >
<a:support event="onblur" ajaxSingle="true" eventsQueue="q1" reRender="_table"/>
</h:inputText>
<a:commandButton ajaxSingle="true"
action="#{paramContHome.selCuentaParam(res)}" reRender="sCta"
onclick="#{rich:component('selCta')}.show();"
styleClass="modifyBtn" value=" " style="width:30px;">
</a:commandButton>
</rich:column>
<f:facet name="footer">
<rich:datascroller id="ds1" renderIfSinglePage="true" />
</f:facet>
</rich:dataTable>
</h:form>
</rich:panel>
<rich:modalPanel id="selCta" width="400" moveable="false" autosized="true" top="50px"
onbeforeshow="activeModal.setActiveModalPanel('selCta');">
<f:facet name="header">#{app.general_lov}</f:facet>
<f:facet name="controls">
<h:panelGroup>
<h:graphicImage value="/kubeImg/close.png" styleClass="closeBtn"
onclick="#{rich:component('selCta')}.hide();" />
</h:panelGroup>
</f:facet>
<s:div id="sCta"><ui:include src="selCta.xhtml" /></s:div>
</rich:modalPanel>
</ui:define>
</ui:composition>
This is the button where i wanna call the method selCuentaParam of component paramContHome:
<rich:column>
<f:facet name="header">#{app.transferencia_valornum}</f:facet>
<h:inputText value="#{res.selObj.nombre}" size="20" >
<a:support event="onblur" ajaxSingle="true" eventsQueue="q1" reRender="_table"/>
</h:inputText>
<a:commandButton ajaxSingle="true"
action="#{paramContHome.selCuentaParam(res)}" reRender="sCta"
onclick="#{rich:component('selCta')}.show();"
styleClass="modifyBtn" value=" " style="width:30px;">
</a:commandButton>
</rich:column>
Inside this method, i call a method from another component, cuentaContHome:
@In(required=false,create=true)
private CuentaContHome cuentaContHome;
...
public void selCuentaParam(ParametroSistema par) {
setSelParam(par);
cuentaContHome.getCuentasList();
}
But when i run the application and enter to the page, and i press the button, it doesn't calle the method selCuentaParam. I've checked this because i put breakpoints inside it and put System.out.println and doesn't invoke it. Do you know why this happens, is something related to component initialization?
Regards.
Well, i found the problem, i think. In my screens i follow a certain pattern: First i have a xhtml where i show a grid of database records with a button to go to a second xhtml wich has a form to create a new record. This button begins a conversation, so in the xhtml that has a form (i call it detail.xhtml) it begins the conversation or joins to existing one. So, i modified the pages.xml of the first xhtml (i call it list.xhtml) in the next way:
<?xml version="1.0" encoding="UTF-8"?>
<page xmlns="http://jboss.com/products/seam/pages"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jboss.com/products/seam/pages http://jboss.com/products/seam/pages-2.2.xsd">
<action execute="#{paramContHome.getParametrosContables()}" on-postback="false"/>
<begin-conversation propagation="begin" join="true" />
</page>
I used first just <begin-conversation /> and but it gives me this exception begin() called from long-running conversation, try join=true so i added this to begin-conversation and it works!!