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/*
* $RCSFile$
*
* Created on 08.03.2007
* for Project:
* by steins
*
* (C) 2005-2006 by
*/
package beans;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
import javax.persistence.EntityManager;
import javax.persistence.EntityTransaction;
import jpa.Category;
import jpa.EntityManagerFactorySingleton;
@ManagedBean(name = "CategoryManager")
@SessionScoped
public class CategoryManager {
private Category current;
public Category getCurrent() {
return current;
}
public void setCurrent(Category current) {
this.current = current;
}
public Collection getCategories() {
EntityManager manager = EntityManagerFactorySingleton.getInstance().getEntityManagerFactory()
.createEntityManager();
Collection categories = manager.createQuery("SELECT c FROM Category c ").getResultList();
manager.close();
return categories;
}
public void select(javax.faces.event.ActionEvent actionEvent) {
FacesContext facesContext = FacesContext.getCurrentInstance();
Map params = facesContext.getExternalContext().getRequestParameterMap();
Integer selectedId = Integer.valueOf((String) params.get("selectedId"));
// System.out.println(selectedId);
EntityManager manager = EntityManagerFactorySingleton.getInstance().getEntityManagerFactory()
.createEntityManager();
EntityTransaction tx = manager.getTransaction();
tx.begin();
try {
current = manager.find(Category.class, selectedId);
// System.out.println(current.getName());
tx.commit();
} catch (Exception ex) {
ex.printStackTrace(System.err);
tx.rollback();
}
FacesContext context = FacesContext.getCurrentInstance();
try {
context.getExternalContext().redirect("products.jsf");
} catch (IOException e) {
e.printStackTrace();
}
context.responseComplete();
manager.close();
}
public void edit(javax.faces.event.ActionEvent actionEvent) {
FacesContext context = FacesContext.getCurrentInstance();
Map<String, String> params = context.getExternalContext().getRequestParameterMap();
Integer selectedId = Integer.valueOf((String) params.get("selectedId"));
// System.out.println(selectedId);
EntityManager manager = EntityManagerFactorySingleton.getInstance().getEntityManagerFactory()
.createEntityManager();
EntityTransaction tx = manager.getTransaction();
tx.begin();
try {
current = manager.find(Category.class, selectedId);
// System.out.println(current.getName());
tx.commit();
} catch (Exception ex) {
ex.printStackTrace(System.err);
tx.rollback();
}
try {
context.getExternalContext().redirect("category.jsf");
} catch (IOException e) {
e.printStackTrace();
}
context.responseComplete();
}
public void deleteCurrentCategory(javax.faces.event.ActionEvent actionEvent) {
FacesContext context = FacesContext.getCurrentInstance();
EntityManager manager = EntityManagerFactorySingleton.getInstance().getEntityManagerFactory()
.createEntityManager();
EntityTransaction tx = manager.getTransaction();
tx.begin();
try {
current = manager.find(Category.class, current.getId());
manager.remove(current);
current = null;
tx.commit();
} catch (Exception ex) {
ex.printStackTrace(System.err);
if (tx.isActive())
tx.rollback();
}
try {
context.getExternalContext().redirect("categories.jsf");
} catch (IOException e) {
e.printStackTrace();
}
context.responseComplete();
}
public void createCategory() {
current = new Category();
FacesContext context = FacesContext.getCurrentInstance();
try {
context.getExternalContext().redirect("category.jsf");
} catch (IOException e) {
e.printStackTrace();
}
context.responseComplete();
}
public void saveCategory() {
EntityManager manager = EntityManagerFactorySingleton.getInstance().getEntityManagerFactory()
.createEntityManager();
EntityTransaction tx = manager.getTransaction();
try {
tx.begin();
current = manager.merge(current);
tx.commit();
} catch (Exception ex) {
ex.printStackTrace(System.err);
tx.rollback();
}
FacesContext context = FacesContext.getCurrentInstance();
try {
context.getExternalContext().redirect("categories.jsf");
} catch (IOException e) {
e.printStackTrace();
}
context.responseComplete();
}
}
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