/**
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
* statements and notices. Redistributions must also contain a
* copy of this document.
*
* 2. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. The name "Exolab" must not be used to endorse or promote
* products derived from this Software without prior written
* permission of Intalio, Inc. For written permission,
* please contact info@exolab.org.
*
* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Intalio, Inc. Exolab is a registered
* trademark of Intalio, Inc.
*
* 5. Due credit should be given to the Exolab Project
* (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
*/
package ctf.jdo.tc1x;
import java.io.Serializable;
import java.util.Date;
import java.util.Enumeration;
import java.util.Vector;
import org.exolab.castor.jdo.Database;
import org.exolab.castor.jdo.Query;
import org.exolab.castor.jdo.QueryResults;
import org.exolab.castor.jdo.Persistent;
import org.exolab.castor.jdo.TimeStampable;
import org.exolab.castor.mapping.AccessMode;
public final class PersistentObject implements Persistent, TimeStampable, Serializable {
/** SerialVersionUID */
private static final long serialVersionUID = -2190482779395735049L;
public static final int DEFAULT_ID = 7;
public static final String DEFAULT_VALUE = "persistent";
private int _id;
private String _value;
private Date _creationTime;
private Date _modificationTime;
private Integer _parentId;
private PersistentObject _parent;
private Vector _children;
private Vector _origChildren;
private PersistentGroup _group;
private PersistentRelated _related;
private PersistentRelated _origRelated;
private long _timeStamp;
private transient Database _db;
public PersistentObject() {
this(DEFAULT_ID);
}
public PersistentObject(final int id) {
_id = id;
_value = DEFAULT_VALUE;
_children = new Vector();
}
public void setId(final int id) { _id = id; }
public int getId() { return _id; }
public void setCreationTime(final Date creationTime) {
_creationTime = creationTime;
}
public Date getCreationTime() { return _creationTime; }
public void setModificationTime(final Date modificationTime) {
_modificationTime = modificationTime;
}
public Date getModificationTime() { return _modificationTime; }
public void setValue1(final String value) { _value = value; }
public String getValue1() { return _value; }
public void setParentId(final Integer parentId) { _parentId = parentId; }
public Integer getParentId() { return _parentId; }
public void setParent(final PersistentObject parent) {
_parent = parent;
_parentId = (_parent == null ? null : new Integer(_parent._id));
}
public PersistentObject getParent() { return _parent; }
public void addChild(final PersistentObject child) {
_children.addElement(child);
child.setParent(this);
child.setGroup(_group);
}
public Vector getChildren() { return _children; }
public PersistentObject findChild(final int id) {
Enumeration enumeration = _children.elements();
PersistentObject child;
while (enumeration.hasMoreElements()) {
child = (PersistentObject) enumeration.nextElement();
if (child.getId() == id) {
return child;
}
}
return null;
}
public void setGroup(final PersistentGroup group) {
if (_group != group) {
_group = group;
Enumeration enumeration = _children.elements();
PersistentObject child;
while (enumeration.hasMoreElements()) {
child = (PersistentObject) enumeration.nextElement();
child.setGroup(_group);
}
}
}
public PersistentGroup getGroup() { return _group; }
public void setRelated(final PersistentRelated related) {
_related = related;
if (related != null) {
related.setPersistent(this);
}
}
public PersistentRelated getRelated() { return _related; }
public void jdoPersistent(final Database db) { _db = db; }
public void jdoTransient() { _db = null; }
public Class jdoLoad(final AccessMode accessMode) throws Exception {
if (_parentId != null) {
_parent = (PersistentObject) _db.load(PersistentObject.class,
_parentId, accessMode);
}
Query qry = _db.getOQLQuery("SELECT p FROM "
+ PersistentObject.class.getName() + " p WHERE parentId=$1");
qry.bind(_id);
QueryResults res = qry.execute();
while (res.hasMore()) {
_children.addElement(res.next());
}
_origChildren = (Vector) _children.clone();
_origRelated = _related;
return null;
}
public void jdoStore(final boolean modified) throws Exception {
Enumeration enumeration;
PersistentObject child;
if (modified) {
_modificationTime = new Date();
}
enumeration = _children.elements();
while (enumeration.hasMoreElements()) {
child = (PersistentObject) enumeration.nextElement();
if (!containsChild(_origChildren, child)) {
_db.create(child);
}
}
enumeration = _origChildren.elements();
while (enumeration.hasMoreElements()) {
child = (PersistentObject) enumeration.nextElement();
if (!containsChild(_children, child)) {
_db.remove(child);
}
}
if ((_origRelated == null) && (_related != null)) {
_db.create(_related);
}
if ((_origRelated != null) && (_related == null)) {
_db.remove(_origRelated);
}
_origRelated = _related;
}
public void jdoUpdate() throws Exception {
Enumeration enumeration = _origChildren.elements();
while (enumeration.hasMoreElements()) {
_db.update(enumeration.nextElement());
}
if (_origRelated != null) {
_db.update(_origRelated);
}
}
public static boolean containsChild(final Vector vector,
final PersistentObject child) {
Enumeration enumeration = vector.elements();
PersistentObject ch;
while (enumeration.hasMoreElements()) {
ch = (PersistentObject) enumeration.nextElement();
if (ch.getId() == child.getId()) {
return true;
}
}
return false;
}
public void jdoBeforeCreate(final Database db) throws Exception {
if (_group == null) {
throw new Exception(
"Incorrect object state: group is not set in " + this);
}
Object grp = null;
try {
grp = db.load(PersistentGroup.class, new Integer(_group.getId()));
} catch (Exception ex) {
}
if (grp == null) {
db.create(_group);
}
_creationTime = new Date();
}
public void jdoAfterCreate() throws Exception {
Enumeration enumeration = _children.elements();
while (enumeration.hasMoreElements()) {
_db.create(enumeration.nextElement());
}
_origChildren = (Vector) _children.clone();
if (_related != null) {
_db.create(_related);
}
_origRelated = _related;
}
public void jdoBeforeRemove() throws Exception {
Enumeration enumeration = _children.elements();
while (enumeration.hasMoreElements()) {
_db.remove(enumeration.nextElement());
}
if (_related != null) {
_db.remove(_related);
}
}
public void jdoAfterRemove() throws Exception { }
public long jdoGetTimeStamp() {
return _timeStamp;
}
public void jdoSetTimeStamp(final long timeStamp) {
_timeStamp = timeStamp;
}
public String toString() {
String children = "";
for (int i = 0; i < _children.size(); i++) {
if (i > 0) {
children += ", ";
}
children += _children.elementAt(i).toString();
}
Integer group = (_group != null ? new Integer(_group.getId()) : null);
return _id + " / " + _value + " / " + _modificationTime
+ " (" + _parentId + ":" + group + ") { " + children + " }";
}
}