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 * and open the template in the editor.
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package ee.tlu.htk.dippler.entities;

import java.io.Serializable;
import java.util.Collection;
import java.util.Date;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.TableGenerator;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Transient;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;

/**
 *
 * @author madis
 */
@XmlRootElement
@Entity
@Table(name = "resource_folder")
@NamedQueries({
    @NamedQuery(name = "ResourceFolder.findAll", query = "SELECT r FROM ResourceFolder r"),
    @NamedQuery(name = "ResourceFolder.findById", query = "SELECT r FROM ResourceFolder r WHERE r.id = :id"),
    @NamedQuery(name = "ResourceFolder.findByTitle", query = "SELECT r FROM ResourceFolder r WHERE r.title = :title"),
    @NamedQuery(name = "ResourceFolder.findByPosition", query = "SELECT r FROM ResourceFolder r WHERE r.position = :position"),
    @NamedQuery(name = "ResourceFolder.rootSubfolders", query = "SELECT r FROM ResourceFolder r WHERE r.course = :course AND r.parentFolder IS NULL ORDER BY r.position ASC"),
    @NamedQuery(name = "ResourceFolder.subfolders", query = "SELECT r FROM ResourceFolder r WHERE r.parentFolder = :parent ORDER BY r.position ASC")
//    @NamedQuery(name = "ResourceFolder.findByContent", query = "SELECT r FROM ResourceFolder r WHERE r.content = :content"),
})
public class ResourceFolder implements Serializable {
    private static final long serialVersionUID = 1L;
    
    @Id
    @GeneratedValue(generator = "LearningResourceFolderID")
    @TableGenerator(name="LearningResourceFolderID", table="id_gen", 
            pkColumnName="ID_NAME", 
            valueColumnName = "ID_VAL",
            pkColumnValue="LAST_RESOURCE_FOLDER",
            allocationSize=1)
    @Basic(optional = false)
    @Column(name = "id")
    private Long id;
    
    @Basic(optional = false)
    @Column(name = "title")
    private String title;
    
    @Basic(optional = false)
    @Column(name = "position")
    private int position;

    @JoinColumn(name = "creator", referencedColumnName = "id")
    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    private User creator;

    @Basic(optional = false)
    @Column(name = "created")
    @Temporal(TemporalType.TIMESTAMP)
    private Date created;

    @Basic(optional = false)
    @Column(name = "modified")
    @Temporal(TemporalType.TIMESTAMP)
    private Date modified;

    @JoinColumn(name = "course", referencedColumnName = "id")
    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    private Course course;
    
    @Transient
    @XmlElement(name="course-id")
    public Long courseId;
    
    // Relation between resource and its folder
    @OneToMany(mappedBy = "resourceFolder")
    private Collection<LearningResource> learningResources;

    @OneToMany(mappedBy = "parentFolder")
    private Collection<ResourceFolder> subfolders;

    @JoinColumn(name = "parent", referencedColumnName = "id")
    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    private ResourceFolder parentFolder;
    
    @Transient
    @XmlElement(name="parentfolder-id")
    public Long parentFolderId;
    
    // TODO Transient for folder/resource position changes
    @Transient
    @XmlElementWrapper(name="resource-ids")
    @XmlElement(name="resource-id")
    public Collection<Long> resourceIds;
     
    @Transient
    @XmlElementWrapper(name="subfolder-ids")
    @XmlElement(name="subfolder-id")
    public Collection<Long> subfolderIds;
    
    public ResourceFolder() {
    }

    public ResourceFolder(Long id) {
        this.id = id;
    }
    
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

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

    public int getPosition() {
        return position;
    }

    public void setPosition(int position) {
        this.position = position;
    }
    
    public User getCreator() {
        return creator;
    }

    public void setCreator(User user) {
        this.creator = user;
    }

    public Date getCreated() {
        return created;
    }

    public void setCreated(Date created) {
        this.created = created;
    }

    public Date getModified() {
        return modified;
    }

    public void setModified(Date modified) {
        this.modified = modified;
    }
    
    public Course getCourse() {
        return course;
    }

    public void setCourse(Course course) {
        this.course = course;
        if ( !this.course.getResourceFolders().contains(this) ) {
            this.course.addResourceFolder(this);
        }
    }
    
    public Long getCourseId() {
        return courseId;
    }

    public Long getParentFolderId() {
        return parentFolderId;
    }
    
    public Collection<LearningResource> getLearningResources() {
        return learningResources;
    }

    public void setLearningResources(Collection<LearningResource> learningResources) {
        this.learningResources = learningResources;
    }

    public Collection<ResourceFolder> getSubfolders() {
        return subfolders;
    }

    public void setSubfolders(Collection<ResourceFolder> subfolders) {
        this.subfolders = subfolders;
    }

    public ResourceFolder getParentFolder() {
        return parentFolder;
    }

    public void setParentFolder(ResourceFolder resourceFolder) {
        this.parentFolder = resourceFolder;
    }
    
    public Collection<Long> getResourceIds() {
        return resourceIds;
    }

    public Collection<Long> getSubfolderIds() {
        return subfolderIds;
    }

    @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 ResourceFolder)) {
            return false;
        }
        ResourceFolder other = (ResourceFolder) 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 "ee.tlu.htk.dippler.entities.ResourceFolder[ id=" + id + " ]";
    }

}