Comment.java example

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richfaces-master
/*
 * JBoss, Home of Professional Open Source
 * Copyright 2013, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.richfaces.photoalbum.model;

import java.io.Serializable;
import java.util.Date;

import javax.enterprise.context.RequestScoped;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.validation.constraints.NotNull;

import org.hibernate.annotations.OnDelete;
import org.hibernate.annotations.OnDeleteAction;
import org.hibernate.validator.constraints.Length;
import org.hibernate.validator.constraints.NotEmpty;

/**
 * Class for representing Comment Entity. EJB3 Entity Bean
 *
 * @author Andrey Markhel
 */

@Entity
@RequestScoped
public class Comment implements Serializable {

    private static final long serialVersionUID = 3429270322123226071L;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @ManyToOne
    @OnDelete(action = OnDeleteAction.CASCADE)
    @JoinColumn(nullable = false)
    private Image image;

    // changed from LAZY
    @ManyToOne(fetch = FetchType.EAGER)
    @OnDelete(action = OnDeleteAction.CASCADE)
    @JoinColumn(nullable = true)
    private User author;

    @Temporal(TemporalType.TIMESTAMP)
    private Date date;

    @NotNull
    @NotEmpty
    @Length(min = 2)
    @Column(length = 1024, nullable = false)
    private String message;

    /**
     * Getter for property preDefined
     *
     * @return is this shelf is predefined
     */
    public boolean isPreDefined() {
        return getImage().isPreDefined();
    }

    // ---------------------------------------Getters, Setters
    public Long getId() {
        return id;
    }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public User getAuthor() {
        return author;
    }

    public void setAuthor(User author) {
        this.author = author;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Image getImage() {
        return image;
    }

    public void setImage(Image image) {
        this.image = image;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }

        final Comment comment = (Comment) obj;

        return (id == null ? comment.getId() == null : id.equals(comment.getId()))
            && (author == null ? comment.getAuthor() == null : author.equals(comment.getAuthor()))
            && image.equals(comment.getImage()) && message.equals(comment.getMessage());
    }

    @Override
    public int hashCode() {
        int result = id != null ? id.hashCode() : 0;
        result = 31 * result + image.hashCode();
        result = 31 * result + author.hashCode();
        result = 31 * result + message.hashCode();
        return result;
    }
}