Deletar um item do dataTable

Galera ta dando um erro estranho…
meu datatable lista so os nomes do banco e gera um link Excluir do lado para excluir o nome…

a pagina

[code]

<%@ taglib uri=“http://java.sun.com/jsf/core” prefix=“f” %>
<%@ taglib uri=“http://java.sun.com/jsf/html” prefix=“h” %>

<%@page contentType=“text/html” pageEncoding=“UTF-8”%>

Lista de Usuarios

LISTA DE USUARIOS


		<h:column>
			Nome: |<h:outputText value="#{usuario.nome}"/>
		</h:column>
		
 	<h:column>
			<h:form id="del">
				<h:commandLink value="#{usuario.idusuario}" action="#{usuarioBean.remove}">
				<f:param name="#{usuarioBean.usuarioPojo.idusuario}" value="#{usuario.idusuario}" ></f:param>
					<h:outputText value="Excluir"></h:outputText>
				</h:commandLink>
					</h:form>				
			</h:column>	
	 	
	</h:dataTable>
	
	 <h:form id="dummy" >
	 <h:commandButton id="novoUsuario" value="Novo Usuario"  action="#{usuarioBean.novoUsuario}" />    
	 </h:form>
	</f:view>
[/code]

Metodo Excluir

[code]
public void excluir(UsuarioPojo usuarioPojo) throws UsuarioDAOException {

	PreparedStatement ps = null;
    Connection conn = null;
    
    if(usuarioPojo == null)
        throw new UsuarioDAOException("O Valor passado não pode ser lido");
    try {
    	
        String sql = "delete from usuarios where idusuario = ?";
        conn = this.conn;
        ps = conn.prepareStatement(sql);
        
        ps.setInt(1, usuarioPojo.getIdusuario());
      
      
        ps.executeUpdate();

    } catch (Exception sqle) {
    	
    throw new UsuarioDAOException("Erro ao inserir dados" + sqle);

    }finally{
        ConexaoBancoDeDados.closeConnection(conn, ps);
 
    }  

}[/code]

E o Erro

[code]
HTTP Status 500 -


type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)

root cause

javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:846)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
org.apache.jsp.mostrar_jsp._jspService(mostrar_jsp.java:110)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)

root cause

java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
javax.faces.component.UIParameter.getName(UIParameter.java:96)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getParamList(HtmlBasicRenderer.java:526)
com.sun.faces.renderkit.html_basic.CommandLinkRenderer.encodeBegin(CommandLinkRenderer.java:192)
javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:683)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:433)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:440)
com.sun.faces.renderkit.html_basic.TableRenderer.encodeChildren(TableRenderer.java:257)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:701)
javax.faces.webapp.UIComponentTag.encodeChildren(UIComponentTag.java:607)
javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:544)
com.sun.faces.taglib.html_basic.DataTableTag.doEndTag(DataTableTag.java:491)
org.apache.jsp.mostrar_jsp._jspx_meth_h_005fdataTable_005f0(mostrar_jsp.java:188)
org.apache.jsp.mostrar_jsp._jspx_meth_f_005fview_005f0(mostrar_jsp.java:134)
org.apache.jsp.mostrar_jsp._jspService(mostrar_jsp.java:99)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.16 logs.


Apache Tomcat/6.0.16[/code]

tem alguma coisa errada ai?
alguem tem um exemplo de como excluir um item em um datatable