RecursoController.java

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package com.pepe.controller;

import com.pepe.jpa.entities.Recurso;
import com.pepe.jpa.sesions.RecursoFacade;
import java.io.Serializable;
import java.util.List;
import javax.ejb.EJB;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;

/**
 *
 * @author Junior Cabal
 */
@ManagedBean
@SessionScoped
public class RecursoController implements Serializable{

    @EJB
    private RecursoFacade recursoFacade;
    private Recurso recursoActual;
    private List<Recurso> listaRecurso = null;

    /**
     * Creates a new instance of CiudadController
     */
    public RecursoController() {
    }

    public RecursoFacade getRecursoFacade() {
        return recursoFacade;
    }
    public Recurso getRecursoActual() {
        if (recursoActual == null) {
            recursoActual = new Recurso();
        }
        return recursoActual;
    }

    public void setRecursoActual(Recurso recursoActual) {
        this.recursoActual = recursoActual;
    }

  
    public List<Recurso> getListaGenero() {
        if (listaRecurso == null) {
            try {
                listaRecurso = getRecursoFacade().findAll();
            } catch (Exception e) {
                addErrorMessage("Error closing resource " + e.getClass().getName(), "Message: " + e.getMessage());
            }
        }
        return listaRecurso;
    }

    private void recargarLista() {
        listaRecurso = null;
    }

    public String prepareCreate() {
        recursoActual = new Recurso();
        return "";
    }

    public String prepareEdit() {
        return "";
    }

    public String prepareView() {
        return "";
    }

    public String prepareList() {
        recargarLista();
        return "";
    }

    public String addRecurso() {
        try {

            getRecursoFacade().create(recursoActual);
            recargarLista();
            return "";
        } catch (Exception e) {
            addErrorMessage("Error closing resource " + e.getClass().getName(), "Message: " + e.getMessage());
            return null;
        }
    }

    public String updateRecurso() {
        try {
            getRecursoFacade().edit(recursoActual);
            recargarLista();
            return "";
        } catch (Exception e) {
            addErrorMessage("Error closing resource " + e.getClass().getName(), "Message: " + e.getMessage());
            return null;
        }
    }

    public String deleteRecurso() {
        try {
            getRecursoFacade().remove(recursoActual);
            recargarLista();
        } catch (Exception e) {
            addErrorMessage("Error closing resource " + e.getClass().getName(), "Message: " + e.getMessage());
        }
        return "";
    }
    
       private void addErrorMessage(String title, String msg) {
        FacesMessage facesMsg
                = new FacesMessage(FacesMessage.SEVERITY_ERROR, title, msg);
        FacesContext.getCurrentInstance().addMessage(null, facesMsg);
    }

    private void addSuccessMessage(String title, String msg) {
        FacesMessage facesMsg
                = new FacesMessage(FacesMessage.SEVERITY_INFO, title, msg);
        FacesContext.getCurrentInstance().addMessage("successInfo", facesMsg);
    }
    
        public Recurso getRecurso(java.lang.Integer id) {
        return getRecursoFacade().find(id);
    }

    @FacesConverter(forClass = Recurso.class)
    public static class RecursoControllerConverter implements Converter {

        @Override
        public Object getAsObject(FacesContext facesContext, UIComponent component, String value) {
            if (value == null || value.length() == 0) {
                return null;
            }
            RecursoController controller = (RecursoController) facesContext.getApplication().getELResolver().
                    getValue(facesContext.getELContext(), null, "recursoController");
            return controller.getRecurso(getKey(value));
        }

        java.lang.Integer getKey(String value) {
            java.lang.Integer key;
            key = Integer.valueOf(value);
            return key;
        }

        String getStringKey(java.lang.Integer value) {
            StringBuilder sb = new StringBuilder();
            sb.append(value);
            return sb.toString();
        }

        @Override
        public String getAsString(FacesContext facesContext, UIComponent component, Object object) {
            if (object == null) {
                return null;
            }
            if (object instanceof Recurso) {
                Recurso o = (Recurso) object;
                return getStringKey(o.getIdRecurso());
            } else {
                throw new IllegalArgumentException("object " + object + " is of type " + object.getClass().getName() + "; expected type: " + Recurso.class.getName());
            }
        }

    }

}