Java tutorial
/* * Copyright 2013 the original author or authors. * * 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 com.vladmihalcea.hibernate.model.store; import org.apache.commons.lang.builder.EqualsBuilder; import org.apache.commons.lang.builder.HashCodeBuilder; import org.apache.commons.lang.builder.ToStringBuilder; import javax.persistence.*; @Entity public class Company { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @Column(unique = true, updatable = false) private String name; public Long getId() { return id; } public String getName() { return name; } public void setName(String name) { this.name = name; } @Override public int hashCode() { HashCodeBuilder hcb = new HashCodeBuilder(); hcb.append(name); return hcb.toHashCode(); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (!(obj instanceof Company)) { return false; } Company that = (Company) obj; EqualsBuilder eb = new EqualsBuilder(); eb.append(name, that.name); return eb.isEquals(); } @Override public String toString() { ToStringBuilder tsb = new ToStringBuilder(this); tsb.append("id", id); tsb.append("name", name); return tsb.toString(); } }