/******************************************************************************* | |
* Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved. | |
* This program and the accompanying materials are made available under the | |
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation from Oracle TopLink | |
******************************************************************************/ | |
package org.eclipse.persistence.testing.models.onetoonejointable; | |
import java.math.*; | |
import java.util.ArrayList; | |
import java.util.List; | |
import java.io.*; | |
import java.beans.PropertyChangeListener; | |
import java.beans.PropertyChangeEvent; | |
import org.eclipse.persistence.indirection.*; | |
import org.eclipse.persistence.descriptors.changetracking.*; | |
/** | |
* <b>Purpose</b>: Abstract superclass for Large & Small projects in Employee Demo | |
* <p><b>Description</b>: Project is an example of an abstract superclass. It demonstrates how class inheritance can be mapped to database tables. | |
* It's subclasses are concrete and may or may not add columns through additional tables. The PROJ_TYPE field in the | |
* database table indicates which subclass to instantiate. Projects are involved in a M:M relationship with employees. | |
* The Employee classs maintains the definition of the relation table. | |
* @see LargeProject | |
* @see SmallProject | |
*/ | |
public abstract class Project implements Serializable, ChangeTracker { | |
// implements ChangeTracker for testing | |
public BigDecimal id; | |
public String name; | |
public String description; | |
public ValueHolderInterface teamLeader; | |
public PropertyChangeListener listener; | |
public List<Employee> employees; | |
public PropertyChangeListener _persistence_getPropertyChangeListener() { | |
return listener; | |
} | |
public void _persistence_setPropertyChangeListener(PropertyChangeListener listener) { | |
this.listener = listener; | |
} | |
public void propertyChange(String propertyName, Object oldValue, Object newValue) { | |
if (listener != null) { | |
if (oldValue != newValue) { | |
listener.propertyChange(new PropertyChangeEvent(this, propertyName, oldValue, newValue)); | |
} | |
} | |
} | |
public void collectionChange(String propertyName, Object oldValue, Object newValue, int changeType, boolean isChangeApplied) { | |
if (listener != null) { | |
listener.propertyChange(new CollectionChangeEvent(this, propertyName, oldValue, newValue, changeType, isChangeApplied)); | |
} | |
} | |
public Project() { | |
this.name = ""; | |
this.description = ""; | |
this.teamLeader = new ValueHolder(); | |
this.employees = new ArrayList(); | |
} | |
public Project(String name) { | |
this(); | |
this.name = name; | |
} | |
public void addEmployee(Employee employee) { | |
getEmployees().add(employee); | |
employee.getProjects().add(this); | |
} | |
public String getDescription() { | |
return description; | |
} | |
/** | |
* Return the persistent identifier of the receiver. | |
*/ | |
public BigDecimal getId() { | |
return id; | |
} | |
public List<Employee> getEmployees() { | |
return employees; | |
} | |
public String getName() { | |
return name; | |
} | |
public Employee getTeamLeader() { | |
return (Employee)teamLeader.getValue(); | |
} | |
public void removeEmployee(Employee employee) { | |
getEmployees().remove(employee); | |
employee.getProjects().remove(this); | |
} | |
public void setDescription(String description) { | |
propertyChange("description", this.description, description); | |
this.description = description; | |
} | |
/** | |
* Set the persistent identifier of the receiver. | |
*/ | |
public void setId(BigDecimal id) { | |
propertyChange("id", this.id, id); | |
this.id = id; | |
} | |
public void setName(String name) { | |
propertyChange("name", this.name, name); | |
this.name = name; | |
} | |
public void setTeamLeader(Employee teamLeader) { | |
propertyChange("teamLeader", this.teamLeader.getValue(), teamLeader); | |
this.teamLeader.setValue(teamLeader); | |
} | |
public void setEmployees(List<Employee> employees) { | |
propertyChange("employees", this.employees, employees); | |
this.employees = employees; | |
} | |
} |