/*
* Copyright (C) 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.errai.demo.grocery.client.shared;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.EntityManager;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
/**
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.TypedQuery;
import org.jboss.errai.databinding.client.api.Bindable;
/**
* Department (section of a store) that an item can be found in.
*
* @author Jonathan Fuerth <jfuerth@gmail.com>
*/
@Bindable
@Entity
@NamedQueries({
@NamedQuery(name = "allDepartments", query = "SELECT d FROM Department d ORDER BY d.name"),
@NamedQuery(name = "departmentByName", query = "SELECT d FROM Department d WHERE lower(d.name) = lower(:name) ORDER BY d.name")
})
public class Department {
@Id
@GeneratedValue
private long id;
private String name;
public Department() {
this.name = new String("");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public long getId() {
return id;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (id ^ (id >>> 32));
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Department other = (Department) obj;
if (id != other.id)
return false;
if (name == null) {
if (other.name != null)
return false;
}
else if (!name.equals(other.name))
return false;
return true;
}
@Override
public String toString() {
return "Department [id=" + id + ", name=" + name + "]";
}
/**
* Finds the pre-existing department that has the given name, creating a new one if no such department exists.
*
* @param em The entity manager to search for the department in.
* @param name The name of the department to look for.
* @return an existing Department from JPA storage, or a new department instance if no existing one was found. Return value
* is never null.
*/
public static Department resolve(EntityManager em, String name) {
TypedQuery<Department> deptQuery = em.createNamedQuery("departmentByName", Department.class);
deptQuery.setParameter("name", name);
Department resolvedDepartment;
List<Department> resultList = deptQuery.getResultList();
if (resultList.isEmpty()) {
resolvedDepartment = new Department();
resolvedDepartment.setName(name);
}
else {
resolvedDepartment = resultList.get(0);
}
return resolvedDepartment;
}
}