EventSession.java

/* Jug Management is a web application conceived to manage user groups or 
 * communities focused on a certain domain of knowledge, whose members are 
 * constantly sharing information and participating in social and educational 
 * events. Copyright (C) 2011 Ceara Java User Group - CEJUG.
 * 
 * This application 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 application 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.
 * 
 * There is a full copy of the GNU Lesser General Public License along with 
 * this library. Look for the file license.txt at the root level. If you do not
 * find it, write to the Free Software Foundation, Inc., 59 Temple Place, 
 * Suite 330, Boston, MA 02111-1307 USA.
 * */
package org.cejug.yougi.event.entity;

import java.io.Serializable;
import java.util.Date;
import java.util.List;
import javax.persistence.*;
import org.cejug.yougi.entity.Identified;

/**
 *
 * @author Hildeberto Mendonca  - http://www.hildeberto.com
 */
@Entity
@Table(name = "event_session")
public class EventSession implements Serializable, Identified {

    private static final long serialVersionUID = 1L;

    @Id
    private String id;

    @ManyToOne
    @JoinColumn(name="event", nullable=false)
    private Event event;

    @Column(nullable=false)
    private String title;

    @Column(name="abstract")
    private String abstr;

    private String topics;

    @Column(name = "session_date")
    @Temporal(TemporalType.DATE)
    private Date sessionDate;

    @Column(name = "start_time")
    @Temporal(TemporalType.TIME)
    private Date startTime;

    @Column(name = "end_time")
    @Temporal(TemporalType.TIME)
    private Date endTime;

    private String room;
    
    @OneToMany(mappedBy="session", fetch= FetchType.EAGER)
    private List<Speaker> speakers;
    
    public EventSession() {
    }

    public EventSession(String id) {
        this.id = id;
    }

    @Override
    public String getId() {
        return id;
    }

    @Override
    public void setId(String id) {
        this.id = id;
    }

    public Event getEvent() {
        return event;
    }

    public void setEvent(Event event) {
        this.event = event;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getAbstract() {
        return abstr;
    }

    public void setAbstract(String abstr) {
        this.abstr = abstr;
    }

    public String getTopics() {
        return topics;
    }

    public void setTopics(String topics) {
        this.topics = topics;
    }

    public Date getSessionDate() {
        return sessionDate;
    }

    public void setSessionDate(Date sessionDate) {
        this.sessionDate = sessionDate;
    }

    public Date getStartTime() {
        return startTime;
    }

    public void setStartTime(Date startTime) {
        this.startTime = startTime;
    }

    public Date getEndTime() {
        return endTime;
    }

    public void setEndTime(Date endTime) {
        this.endTime = endTime;
    }

    public String getRoom() {
        return room;
    }

    public void setRoom(String room) {
        this.room = room;
    }
   
    /**
     * @return At least one speaker that is alocated in this event session to 
     * give a speech.
     */
    public List<Speaker> getSpeakers() {
        return speakers;
    }
    
    public String getSpeakersName() {
        if(speakers == null || speakers.isEmpty()) {
            return "";
        }
        
        StringBuilder speakersName = new StringBuilder();
        String separator = "";
        for(Speaker speaker: speakers) {
            speakersName.append(separator);
            speakersName.append(speaker.toString());
            separator = ", ";
        }
        return speakersName.toString();
    }

    public void setSpeakers(List<Speaker> speakers) {
        this.speakers = speakers;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @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 EventSession)) {
            return false;
        }
        EventSession other = (EventSession) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return this.title;
    }
}