widget.java

来自「resetful样式的ws样例,一种面向资源的webservices服务」· Java 代码 · 共 193 行

/*
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://jersey.dev.java.net/CDDL+GPL.html
 * or jersey/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at jersey/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

/*
 * Widget.java
 *
 * Created on April 6, 2007, 5:01 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.sun.jersey.samples.persistence;

import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;

/**
 * Entity class Widget
 * 
 * @author mh124079
 */
@Entity
@Table(name = "WIDGET")
@NamedQueries( {
        @NamedQuery(name = "Widget.findById", query = "SELECT w FROM Widget w WHERE w.id = :id"),
        @NamedQuery(name = "Widget.findByName", query = "SELECT w FROM Widget w WHERE w.name = :name"),
        @NamedQuery(name = "Widget.findByDescription", query = "SELECT w FROM Widget w WHERE w.description = :description")
    })
public class Widget implements Serializable {

    @Id
    @Column(name = "ID", nullable = false)
    private Integer id;

    @Column(name = "NAME", nullable = false)
    private String name;

    @Column(name = "DESCRIPTION")
    private String description;
    
    /** Creates a new instance of Widget */
    public Widget() {
    }

    /**
     * Creates a new instance of Widget with the specified values.
     * @param id the id of the Widget
     */
    public Widget(Integer id) {
        this.id = id;
    }

    /**
     * Creates a new instance of Widget with the specified values.
     * @param id the id of the Widget
     * @param name the name of the Widget
     */
    public Widget(Integer id, String name) {
        this.id = id;
        this.name = name;
    }

    /**
     * Gets the id of this Widget.
     * @return the id
     */
    public Integer getId() {
        return this.id;
    }

    /**
     * Sets the id of this Widget to the specified value.
     * @param id the new id
     */
    public void setId(Integer id) {
        this.id = id;
    }

    /**
     * Gets the name of this Widget.
     * @return the name
     */
    public String getName() {
        return this.name;
    }

    /**
     * Sets the name of this Widget to the specified value.
     * @param name the new name
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Gets the description of this Widget.
     * @return the description
     */
    public String getDescription() {
        return this.description;
    }

    /**
     * Sets the description of this Widget to the specified value.
     * @param description the new description
     */
    public void setDescription(String description) {
        this.description = description;
    }

    /**
     * Returns a hash code value for the object.  This implementation computes 
     * a hash code value based on the id fields in this object.
     * @return a hash code value for this object.
     */
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (this.id != null ? this.id.hashCode() : 0);
        return hash;
    }

    /**
     * Determines whether another object is equal to this Widget.  The result is 
     * <code>true</code> if and only if the argument is not null and is a Widget object that 
     * has the same id field values as this object.
     * @param object the reference object with which to compare
     * @return <code>true</code> if this object is the same as the argument;
     * <code>false</code> otherwise.
     */
    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Widget)) {
            return false;
        }
        Widget other = (Widget)object;
        if (this.id != other.id && (this.id == null || !this.id.equals(other.id))) return false;
        return true;
    }

    /**
     * Returns a string representation of the object.  This implementation constructs 
     * that representation based on the id fields.
     * @return a string representation of the object.
     */
    @Override
    public String toString() {
        return "com.example.persistence.Widget[id=" + id + "]";
    }
    
}