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package org.netbeans.modules.customerviewer;
import demo.Customer;
import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.persistence.EntityManager;
import javax.persistence.Persistence;
import javax.swing.Action;
import org.openide.actions.DeleteAction;
import org.openide.actions.PropertiesAction;
import org.openide.nodes.AbstractNode;
import org.openide.nodes.ChildFactory;
import org.openide.nodes.Children;
import org.openide.nodes.Node;
import org.openide.util.actions.SystemAction;
import org.openide.util.lookup.Lookups;
public class CustomerChildFactory extends ChildFactory<Customer> {
private List<Customer> resultList;
public CustomerChildFactory(List<Customer> resultList) {
this.resultList = resultList;
}
@Override
protected boolean createKeys(List<Customer> list) {
for (Customer customer : resultList) {
list.add(customer);
}
return true;
}
@Override
protected Node createNodeForKey(Customer c) {
Node node = new AbstractNode(Children.LEAF, Lookups.singleton(c)) {
@Override
public Action[] getActions(boolean context) {
Action[] result = new Action[]{
SystemAction.get(DeleteAction.class),
SystemAction.get(PropertiesAction.class)
};
return result;
}
@Override
public boolean canDestroy() {
Customer customer = this.getLookup().lookup(Customer.class);
return customer != null;
}
@Override
public void destroy() throws IOException {
if (deleteCustomer(this.getLookup().lookup(Customer.class).getCustomerId())) {
super.destroy();
CustomerTopComponent.refreshNode();
}
}
};
node.setDisplayName(c.getName());
node.setShortDescription(c.getCity());
return node;
}
private static boolean deleteCustomer(int customerId) {
EntityManager entityManager = Persistence.createEntityManagerFactory("CustomerDBAccessPU").createEntityManager();
entityManager.getTransaction().begin();
try {
Customer toDelete = entityManager.find(Customer.class, customerId);
entityManager.remove(toDelete);
// so far so good
entityManager.getTransaction().commit();
} catch(Exception e) {
Logger.getLogger(CustomerChildFactory.class.getName()).log(
Level.WARNING, "Cannot delete a customer with id {0}, cause: {1}", new Object[]{customerId, e});
entityManager.getTransaction().rollback();
}
return true;
}
}