/*******************************************************************************
* Copyright (c) 2006-2010 Vienna University of Technology,
* Department of Software Technology and Interactive Systems
*
* All rights reserved. This program and the accompanying
* materials are made available under the terms of the
* Apache License, Version 2.0 which accompanies
* this distribution, and is available at
* http://www.apache.org/licenses/LICENSE-2.0
*******************************************************************************/
package eu.planets_project.pp.plato.model.measurement;
import java.io.Serializable;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Transient;
import org.hibernate.validator.Length;
import eu.planets_project.pp.plato.model.ChangeLog;
import eu.planets_project.pp.plato.model.IChangesHandler;
import eu.planets_project.pp.plato.model.ITouchable;
import eu.planets_project.pp.plato.model.scales.Scale;
@Entity
public class Metric implements Serializable, ITouchable, Cloneable {
private static final long serialVersionUID = 569177099755236670L;
@Id
@GeneratedValue
private long id;
private String metricId;
private String name;
/**
* Hibernate note: standard length for a string column is 255
* validation is broken because we use facelet templates (issue resolved in Seam 2.0)
* therefore allow "long" entries
*/
@Length(max = 32672)
@Column(length = 32672)
private String description;
@Transient
private String type;
@OneToOne(cascade=CascadeType.ALL)
private Scale scale;
@OneToOne(cascade=CascadeType.ALL)
private ChangeLog changeLog = new ChangeLog();
public String getMetricId() {
return metricId;
}
public void setMetricId(String metricId) {
this.metricId = metricId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public ChangeLog getChangeLog() {
return changeLog;
}
public void setChangeLog(ChangeLog value) {
changeLog = value;
}
public boolean isChanged(){
return changeLog.isAltered();
}
public void touch() {
changeLog.touch();
}
/**
* @see ITouchable#handleChanges(IChangesHandler)
*/
public void handleChanges(IChangesHandler h) {
h.visit(this);
}
/**
* returns a clone of self.
* Implemented for storing and inserting fragments.
* Subclasses obtain a shallow copy by invoking this method, then
* modifying the fields required to obtain a deep copy of this object.
* the id is not copied
*/
public Metric clone() {
try {
Metric clone = (Metric)super.clone();
// created-timestamp is automatically set to now
clone.setChangeLog(new ChangeLog(this.getChangeLog().getChangedBy()));
if (this.scale != null) {
clone.setScale(this.scale.clone());
}
clone.id = 0;
return clone;
} catch (CloneNotSupportedException e) {
// never thrown
return null;
}
}
public void assign(Metric m) {
metricId = m.metricId;
name = m.name;
description = m.description;
type = m.type;
if (m.scale != null) {
scale = m.scale.clone();
} else {
scale = null;
}
}
public Scale getScale() {
return scale;
}
public void setScale(Scale scale) {
this.scale = scale;
}
}