/**
* File ./src/main/java/de/lemo/dms/db/mapping/CourseUserMining.java
* Lemo-Data-Management-Server for learning analytics.
* Copyright (C) 2013
* Leonard Kappe, Andreas Pursian, Sebastian Schwarzrock, Boris Wenzlaff
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
/**
* File ./main/java/de/lemo/dms/db/mapping/CourseUserMining.java
* Date 2013-01-24
* Project Lemo Learning Analytics
*/
package de.lemo.dms.db.mapping;
import java.util.Map;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import de.lemo.dms.db.mapping.abstractions.IMappingClass;
/**
* This class represents the relationship between courses and user
* @author Sebastian Schwarzrock
*/
@Entity
@Table(name = "course_user")
public class CourseUserMining implements IMappingClass {
private long id;
private CourseMining course;
private UserMining user;
private RoleMining role;
private long enrolStart;
private long enrolEnd;
private Long platform;
@Override
public boolean equals(final IMappingClass o)
{
if (!(o instanceof CourseUserMining)) {
return false;
}
if ((o.getId() == this.getId()) && (o instanceof CourseUserMining)) {
return true;
}
return false;
}
/**
* standard getter for the attribute id
*
* @return the identifier for the association between course and user
*/
@Override
@Id
public long getId() {
return this.id;
}
@Override
public int hashCode() {
return (int) id;
}
/**
* standard setter for the attribute id
*
* @param id
* the identifier for the association between course and user
*/
public void setId(final long id) {
this.id = id;
}
/**
* standard setter for the attribute course
*
* @param course
* the course in which the user is enroled
*/
public void setCourse(final CourseMining course) {
this.course = course;
}
/**
* standard getter for the attribute course
*
* @return the course in which the user is enroled
*/
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="course_id")
public CourseMining getCourse() {
return this.course;
}
/**
* parameterized setter for the attribute course
*
* @param course
* the id of the course in which the user is enroled
* @param courseMining
* a list of new added courses, which is searched for the course with the id submitted in the course
* parameter
* @param oldCourseMining
* a list of course in the miningdatabase, which is searched for the course with the id submitted in the
* course parameter
*/
public void setCourse(final long course, final Map<Long, CourseMining> courseMining,
final Map<Long, CourseMining> oldCourseMining) {
if (courseMining.get(course) != null)
{
this.course = courseMining.get(course);
courseMining.get(course).addCourseUser(this);
}
if ((this.course == null) && (oldCourseMining.get(course) != null))
{
this.course = oldCourseMining.get(course);
oldCourseMining.get(course).addCourseUser(this);
}
}
/**
* standard getter for the attribute enrolstart
*
* @return the timestamp when the user was enroled in the course
*/
@Column(name="enrolstart")
public long getEnrolstart() {
return this.enrolStart;
}
/**
* standard setter for the attribute enrolstart
*
* @param enrolstart
* the timestamp when the user was enroled in the course
*/
public void setEnrolstart(final long enrolstart) {
this.enrolStart = enrolstart;
}
/**
* standard getter for the attribute enrolend
*
* @return the timestamp when the user is not enroled any more
*/
@Column(name="enrolend")
public long getEnrolend() {
return this.enrolEnd;
}
/**
* standard setter for the attribute enrolend
*
* @param enrolend
* the timestamp when the user is not enroled any more
*/
public void setEnrolend(final long enrolend) {
this.enrolEnd = enrolend;
}
/**
* standard getter for the attribute user
*
* @return the user who is enroled in the course
*/
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="user_id")
public UserMining getUser() {
return this.user;
}
/**
* standard setter for the attribute user
*
* @param user
* the user who is enroled in the course
*/
public void setUser(final UserMining user) {
this.user = user;
}
/**
* parameterized setter for the attribute user
*
* @param user
* the id of the user who is enroled in the course
* @param userMining
* a list of new added users, which is searched for the user with the id submitted in the user parameter
* @param oldUserMining
* a list of users in the miningdatabase, which is searched for the user with the id submitted in the
* user parameter
*/
public void setUser(final long user, final Map<Long, UserMining> userMining,
final Map<Long, UserMining> oldUserMining) {
if (userMining.get(user) != null)
{
this.user = userMining.get(user);
userMining.get(user).addCourseUser(this);
}
if ((this.user == null) && (oldUserMining.get(user) != null))
{
this.user = oldUserMining.get(user);
oldUserMining.get(user).addCourseUser(this);
}
}
/**
* standard setter for the attribute role
*
* @param role
* the role which the user has in the course
*/
public void setRole(final RoleMining role) {
this.role = role;
}
/**
* standard getter for the attribute role
*
* @return the role which the user has in the course
*/
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="role_id")
public RoleMining getRole() {
return this.role;
}
/**
* parameterized setter for the attribute role
*
* @param role
* the id of the role which the user has in the course
* @param roleMining
* a list of new added roles, which is searched for the role with the id submitted in the role parameter
* @param oldRoleMining
* a list of roles in the miningdatabase, which is searched for the role with the id submitted in the
* role parameter
*/
public void setRole(final long role, final Map<Long, RoleMining> roleMining,
final Map<Long, RoleMining> oldRoleMining) {
if (roleMining.get(role) != null)
{
this.role = roleMining.get(role);
roleMining.get(role).addCourseUser(this);
}
if ((this.role == null) && (oldRoleMining.get(role) != null))
{
this.role = oldRoleMining.get(role);
oldRoleMining.get(role).addCourseUser(this);
}
}
@Column(name="platform")
public Long getPlatform() {
return this.platform;
}
public void setPlatform(final Long platform) {
this.platform = platform;
}
}