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Re: [eclipselink-users] Issue deleting entity with references to them selves
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Thanks! That took care of everything.
Thanks for the tip. I'll reevaluate the Cascade Types.
Javier A. Ortiz Bultrón
Quality Assurance Engineer
B.Braun Medical, Inc.
972-466-5076 Phone
James Sutherland <jamesssss@xxxxxxxxx>
Sent by: eclipselink-users-bounces@xxxxxxxxxxx
12/08/2009 01:36
PM
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Subject
| Re: [eclipselink-users] Issue deleting
entity with references to them selves |
|
What version of EclipseLink are you using? Could you include the
exception
and stack trace.
Do you have a cycle of objects being deleted?
You can try adding @PrivateOwned instead of the cascade remove, this may
resolve the issue, however you model seems very odd. You have cascade
ALL
on all your relationships, this means that if you delete anything, it will
delete everything, is this intended? Normally remove is only cascaded
for
dependent objects.
Javier.Ortiz wrote:
>
> I have an entity with a Many to One relationship to it self (but there
are
> no instances of an entity referring to itself). When I try deleting
the
> table contents I get complaints about the constraint. I thought that
> defining the relation as CascadeType.ALL would take care of it but
that's
> not the case.
>
> Here's the entity (see the relationship in bold):
>
> /*
> * To change this template, choose Tools | Templates
> * and open the template in the editor.
> */
> package com.bluecubs.xinco.core.server.persistence;
>
> import com.bluecubs.xinco.core.server.AuditedEntityListener;
> import com.bluecubs.xinco.core.server.XincoAuditedObject;
> import java.io.Serializable;
> import java.util.List;
> import javax.persistence.Basic;
> import javax.persistence.CascadeType;
> import javax.persistence.Column;
> import javax.persistence.Entity;
> import javax.persistence.EntityListeners;
> import javax.persistence.FetchType;
> 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;
>
> /**
> *
> * @author Javier A. Ortiz Bultrón <javier.ortiz.78@xxxxxxxxx>
> */
> @Entity
> @Table(name = "xinco_core_node")
> @EntityListeners(AuditedEntityListener.class)
> @NamedQueries({
> @NamedQuery(name = "XincoCoreNode.findAll",
query = "SELECT x FROM
> XincoCoreNode x"),
> @NamedQuery(name = "XincoCoreNode.findById",
query = "SELECT x FROM
> XincoCoreNode x WHERE x.id = :id"),
> @NamedQuery(name = "XincoCoreNode.findByDesignation",
query = "SELECT
> x FROM XincoCoreNode x WHERE x.designation = :designation"),
> @NamedQuery(name = "XincoCoreNode.findByStatusNumber",
query = "SELECT
> x FROM XincoCoreNode x WHERE x.statusNumber = :statusNumber")})
> public class XincoCoreNode extends XincoAuditedObject implements
> Serializable {
>
> private static final long serialVersionUID = 1L;
> @Id
> @Basic(optional = false)
> @Column(name = "id", nullable = false)
> private Integer id;
> @Basic(optional = false)
> @Column(name = "designation", nullable = false,
length = 255)
> private String designation;
> @Basic(optional = false)
> @Column(name = "status_number", nullable =
false)
> private int statusNumber;
> @JoinColumn(name = "xinco_core_language_id",
referencedColumnName =
> "id", nullable = false)
> @ManyToOne(optional = false, fetch = FetchType.LAZY)
> private XincoCoreLanguage xincoCoreLanguageId;
> @OneToMany(cascade = CascadeType.ALL, mappedBy = "xincoCoreNodeId",
> fetch = FetchType.LAZY)
> private List<XincoCoreNode> xincoCoreNodeList;
> @JoinColumn(name = "xinco_core_node_id", referencedColumnName
= "id")
> @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
> private XincoCoreNode xincoCoreNodeId;
> @OneToMany(cascade = CascadeType.ALL, mappedBy = "xincoCoreNodeId",
> fetch = FetchType.LAZY)
> private List<XincoCoreAce> xincoCoreAceList;
> @OneToMany(cascade = CascadeType.ALL, mappedBy = "xincoCoreNodeId",
> fetch = FetchType.LAZY)
> private List<XincoCoreData> xincoCoreDataList;
>
> public XincoCoreNode() {
> }
>
> public XincoCoreNode(Integer id) {
> this.id = id;
> }
>
> public XincoCoreNode(Integer id, String designation,
int statusNumber)
> {
> this.id = id;
> this.designation = designation;
> this.statusNumber = statusNumber;
> }
>
> public Integer getId() {
> return id;
> }
>
> public void setId(Integer id) {
> this.id = id;
> }
>
> public String getDesignation() {
> return designation;
> }
>
> public void setDesignation(String designation) {
> this.designation = designation;
> }
>
> public int getStatusNumber() {
> return statusNumber;
> }
>
> public void setStatusNumber(int statusNumber) {
> this.statusNumber = statusNumber;
> }
>
> public XincoCoreLanguage getXincoCoreLanguageId() {
> return xincoCoreLanguageId;
> }
>
> public void setXincoCoreLanguageId(XincoCoreLanguage
> xincoCoreLanguageId) {
> this.xincoCoreLanguageId = xincoCoreLanguageId;
> }
>
> public List<XincoCoreNode> getXincoCoreNodeList()
{
> return xincoCoreNodeList;
> }
>
> public void setXincoCoreNodeList(List<XincoCoreNode>
> xincoCoreNodeList) {
> this.xincoCoreNodeList = xincoCoreNodeList;
> }
>
> public XincoCoreNode getXincoCoreNodeId() {
> return xincoCoreNodeId;
> }
>
> public void setXincoCoreNodeId(XincoCoreNode xincoCoreNodeId)
{
> this.xincoCoreNodeId = xincoCoreNodeId;
> }
>
> public List<XincoCoreAce> getXincoCoreAceList()
{
> return xincoCoreAceList;
> }
>
> public void setXincoCoreAceList(List<XincoCoreAce>
xincoCoreAceList) {
> this.xincoCoreAceList = xincoCoreAceList;
> }
>
> public List<XincoCoreData> getXincoCoreDataList()
{
> return xincoCoreDataList;
> }
>
> public void setXincoCoreDataList(List<XincoCoreData>
> xincoCoreDataList) {
> this.xincoCoreDataList = xincoCoreDataList;
> }
>
> @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 XincoCoreNode))
{
> return false;
> }
> XincoCoreNode other = (XincoCoreNode)
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
> "com.bluecubs.xinco.core.server.persistence.XincoCoreNode[id="
+ id + "]";
> }
> }
>
> Any help/idea is welcomed!
>
> Thanks in advance!
>
> Javier A. Ortiz Bultrón
> Quality Assurance Engineer
> B.Braun Medical, Inc.
> 972-466-5076 Phone
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-----
http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland
http://www.eclipse.org/eclipselink/
EclipseLink , http://www.oracle.com/technology/products/ias/toplink/
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