Hi Jon,
Looks like a bug on our part. Could you open up a bug and include your code
that reproduces the exception there?
Thanks,
Guy
----- Original Message -----
From: "Jon Miller" <jemiller_at_uchicago.edu>
To: <persistence_at_glassfish.dev.java.net>
Sent: Monday, January 08, 2007 4:38 PM
Subject: Re: PrePersist method not being called
> Basically, I'm just doing a merge. EntityManagerHelper is a class that I
> wrote which creates an EntityManagerFactory and EntityManager and stores
> it in a ThreadLocal. I can probably package things up and send it to you
> if you want.
>
> public User saveUser(User user) {
> logger.fine("entered");
> if (user == null)
> {
> throw new IllegalArgumentException("user must not be null");
> }
> ...
> EntityManager em = EntityManagerHelper.getEntityManager();
> EntityTransaction et = em.getTransaction();
> et.begin();
> user = em.merge(user);
> et.commit();
> ...
>
> Jon
>
> ----- Original Message -----
> From: "Guy Pelletier" <guy.pelletier_at_oracle.com>
> To: <persistence_at_glassfish.dev.java.net>
> Sent: Monday, January 08, 2007 3:19 PM
> Subject: Re: PrePersist method not being called
>
>
>> Hi Jon,
>>
>> No, that should be fine. Can you provide a snippet of the code that are
>> you executing, that should cause the pre-persist event to be called?
>>
>> Cheers,
>> Guy
>>
>> ----- Original Message -----
>> From: "Jon Miller" <jemiller_at_uchicago.edu>
>> To: <persistence_at_glassfish.dev.java.net>
>> Sent: Monday, January 08, 2007 4:08 PM
>> Subject: Re: PrePersist method not being called
>>
>>
>>> Guy, yes, I just noticed that preUpdate is called. It's just prePersist
>>> that isn't being called. Another thing that just occurred to me. I don't
>>> know if this has anything to do with it or not, but, the Id value for
>>> the class is implemented in the subclasses, not AuditObject. So,
>>> AuditObject has a PrePersist method but no Id field. I'm guessing maybe
>>> that's it? AuditObject is an abstract class.
>>>
>>> Jon
>>>
>>> ----- Original Message -----
>>> From: "Guy Pelletier" <guy.pelletier_at_oracle.com>
>>> To: <persistence_at_glassfish.dev.java.net>
>>> Sent: Monday, January 08, 2007 12:20 PM
>>> Subject: Re: PrePersist method not being called
>>>
>>>
>>>> Hi Jon,
>>>>
>>>> I noticed there is a pre-update listener on the mapped superclass. Does
>>>> it ever get called? Is it just the pre-persist that never executes?
>>>>
>>>> Cheers,
>>>> Guy
>>>>
>>>> ----- Original Message -----
>>>> From: "Jon Miller" <jemiller_at_uchicago.edu>
>>>> To: <persistence_at_glassfish.dev.java.net>
>>>> Sent: Monday, January 08, 2007 1:00 PM
>>>> Subject: Re: PrePersist method not being called
>>>>
>>>>
>>>>> Thanks Tom. Yeah, I have all the classes listed there now. It still
>>>>> isn't working though. I just tried a simpler test with the PrePersist
>>>>> method in the top level class and it worked. I'll have to look into it
>>>>> further...
>>>>>
>>>>> Thanks for the info on weaving. I recently read about that. So far I
>>>>> just been doing without it. I figure once I get further along I may
>>>>> need to enable it if performance is an issue. One thing that I'm
>>>>> wondering about the agent is: is it possible to somehow enable the
>>>>> agent programatically in the program itself, or, does it have to be
>>>>> passed as a command-line argument? I'm using TopLink with Tomcat and
>>>>> not using an EJB application server. I like the idea of being able to
>>>>> deploy the web app self-contained without having to make changes to
>>>>> the web server configuration such as passing command-line arguments to
>>>>> the JVM.
>>>>>
>>>>> Jon
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Tom Ware" <tom.ware_at_oracle.com>
>>>>> To: <persistence_at_glassfish.dev.java.net>
>>>>> Sent: Monday, January 08, 2007 8:28 AM
>>>>> Subject: Re: PrePersist method not being called
>>>>>
>>>>>
>>>>>> Hi Jon,
>>>>>>
>>>>>> Are you still seeing the problem now that you have listed
>>>>>> AuditObject in your persistence.xml?
>>>>>>
>>>>>> In Java SE, the JPA specification says that portable applications
>>>>>> must list the classes that will be used in the persistence.xml either
>>>>>> with <class> element, by referring to them in a file referenced by a
>>>>>> <mapping-file> element, or by placing them in a file referenced by a
>>>>>> <jar-file> element. As a result, in Java SE depending on how your
>>>>>> persistence.xml looks, we may not automatically discover your
>>>>>> classes.
>>>>>>
>>>>>> In some Java SE Environments TopLink Essentials will be able to
>>>>>> auto-discover if you use the <exclude-unlisted-classes> element in
>>>>>> your persistence.xml and set it to false.
>>>>>>
>>>>>> FYI: You have asked a couple of questions about the javaagent, so
>>>>>> I'll give you an idea what the purpose of the agent is. In TopLink
>>>>>> Essentials, we use the javaagent to dynamically weave classes that
>>>>>> have OneToOne or ManyToOne mappings with FetchType LAZY. The weaving
>>>>>> allows us to actually retrieve the elements referenced by those
>>>>>> mappings in a LAZY manner. For those that do not wish to use the
>>>>>> agent (or cannot use it), there is also the option of using a
>>>>>> preprocessing step for this weaving. If you are interested in that
>>>>>> step, take a look at the section of the following document entitled,
>>>>>> "Static Weaving Using the StaticWeave Class on the Command Line":
>>>>>>
>>>>>> http://www.oracle.com/technology/products/ias/toplink/jpa/resources/toplink-jpa-extensions.html#LazyLoading
>>>>>>
>>>>>> -Tom
>>>>>>
>>>>>> Jon Miller wrote:
>>>>>>
>>>>>>>I thought I found what might have been the problem on my side. I
>>>>>>>wasn't listing AuditObject in my persistence.xml. Initially, I was
>>>>>>>thinking that you only would have to list the subclasses that you are
>>>>>>>using directly and that it would automatically add in the
>>>>>>>superclasses for you. I found out that this doesn't appear to be the
>>>>>>>case though (at least in standalone mode). Another thing worth
>>>>>>>mentioning is that the AuditObject class is in a different jar file.
>>>>>>>I'm not sure if that would make a difference or not. There's only one
>>>>>>>persistence.xml, but, the classes are split between two jar files.
>>>>>>>
>>>>>>>Jon
>>>>>>>
>>>>>>>----- Original Message -----
>>>>>>>From: "Jon Miller" <jemiller_at_uchicago.edu>
>>>>>>>To: <persistence_at_glassfish.dev.java.net>
>>>>>>>Sent: Friday, January 05, 2007 6:13 PM
>>>>>>>Subject: Re: PrePersist method not being called
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>OK, I tested it and it works with Hibernate, but, I receive the
>>>>>>>>following error with TopLink. The prePersist method is supposed to
>>>>>>>>be called which sets the lastWriteTime field. This isn't happening,
>>>>>>>>so, it's causing an exception since that field is NOT NULL.
>>>>>>>>
>>>>>>>> [junit] Caused by: Exception [TOPLINK-4002] (Oracle TopLink
>>>>>>>> Essentials - 9.1 (Build b30)): oracle.toplink.essentials
>>>>>>>>.exceptions.DatabaseException
>>>>>>>> [junit] Internal Exception: java.sql.SQLException:
>>>>>>>> [SKATE\SQLEXPRESS]Cannot insert the value NULL into column 'LastW
>>>>>>>>riteTime', table 'Schedules.dbo.Person'; column does not allow
>>>>>>>>nulls. INSERT fails.Error Code: 515
>>>>>>>> [junit] Call:INSERT INTO Person (Department, CreationUserName,
>>>>>>>> FirstName, LastName, LastWriteTime, Name, LastWriteUs
>>>>>>>>erName, MiddleName, TelephoneNumber, Title, CreationTime,
>>>>>>>>Curriculum, Address, UserName, EmailAddress, Organization, Cla
>>>>>>>>ss) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
>>>>>>>> [junit] bind => [null, null, Jonathan, Miller, null, Jonathan
>>>>>>>> Eric Miller, null, Eric, null, null, null, null, n
>>>>>>>>ull, jemiller, null, null, Schedules.Persistence.Entity.User]
>>>>>>>>
>>>>>>>>Jon
>>>>>>>>
>>>>>>>>----- Original Message -----
>>>>>>>>From: "Jon Miller" <jemiller_at_uchicago.edu>
>>>>>>>>To: <persistence_at_glassfish.dev.java.net>
>>>>>>>>Sent: Friday, January 05, 2007 5:47 PM
>>>>>>>>Subject: Re: PrePersist method not being called
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>OK, I tested it with V2 build 30. It still isn't getting called.
>>>>>>>>>I'm not using the agent at present. Would that matter? I'm
>>>>>>>>>wondering if the problem is that the PrePersist method is in a
>>>>>>>>>MappedSuperclass? I think that's a valid thing to do though. I
>>>>>>>>>think the Javadocs mention it if I remember correctly. I'm going to
>>>>>>>>>test it again with Hibernate, just to make sure I'm not doing
>>>>>>>>>something else wrong and that it does indeed work with Hibernate
>>>>>>>>>and not TopLink.
>>>>>>>>>
>>>>>>>>>Jon
>>>>>>>>>
>>>>>>>>>----- Original Message -----
>>>>>>>>>From: "Tom Ware" <tom.ware_at_oracle.com>
>>>>>>>>>To: <persistence_at_glassfish.dev.java.net>
>>>>>>>>>Sent: Thursday, January 04, 2007 2:10 PM
>>>>>>>>>Subject: Re: PrePersist method not being called
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>Hi Jon,
>>>>>>>>>>
>>>>>>>>>> Do you see the same behavior on the latest builds of TopLink
>>>>>>>>>> essentials (e.g. V2 build 30)? There have been quite a lot of
>>>>>>>>>> changes since the end of August (060830).
>>>>>>>>>>
>>>>>>>>>> You can get the latest version at:
>>>>>>>>>>
>>>>>>>>>>https://glassfish.dev.java.net/downloads/persistence/JavaPersistence.html
>>>>>>>>>>
>>>>>>>>>>-Tom
>>>>>>>>>>
>>>>>>>>>>Jon Miller wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>Hi all,
>>>>>>>>>>>
>>>>>>>>>>>I'm using the version of Toplink Essentials that comes with
>>>>>>>>>>>NetBeans 5.5. I have a class which defines a PrePersist method
>>>>>>>>>>>(AuditObject.prePersist()) which sets some values in an object
>>>>>>>>>>>(namely a timestamp which is a NOT NULL value). I'm finding that
>>>>>>>>>>>this method isn't being called when I attempt to persist an Item
>>>>>>>>>>>object (subclass of AuditObject). It works fine if I use
>>>>>>>>>>>Hibernate's implementation of JPA. Does anyone know what I might
>>>>>>>>>>>be doing wrong or if this is a known issue? So far I haven't been
>>>>>>>>>>>using the javaagent. However, I just tried it with the agent to
>>>>>>>>>>>see if that might be the problem, but, it didn't make a
>>>>>>>>>>>difference. The following is the exception that I'm receiving.
>>>>>>>>>>>
>>>>>>>>>>>Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8
>>>>>>>>>>>(Build 060830)):
>>>>>>>>>>>oracle.toplink.essentials.exceptions.DatabaseException
>>>>>>>>>>>Internal Exception: java.sql.SQLException:
>>>>>>>>>>>[SKATE\SQLEXPRESS]Cannot insert the value NULL into column
>>>>>>>>>>>'LastWriteTime', table 'ReservationsDev.dbo.Item'; column does
>>>>>>>>>>>not allow nulls. INSERT fails.Error Code: 515
>>>>>>>>>>>Call:INSERT INTO Item (Name, CreationUserName, Description,
>>>>>>>>>>>LastWriteUserName, LastWriteTime, CreationTime) VALUES (?, ?, ?,
>>>>>>>>>>>?, ?, ?)
>>>>>>>>>>> bind => [testSaveItem Wed Jan 03 14:43:08 CST 2007, null,
>>>>>>>>>>> Description, null, null, null]
>>>>>>>>>>>Query:InsertObjectQuery([id = null, name = "testSaveItem Wed Jan
>>>>>>>>>>>03 14:43:08 CST 2007", description = "Description"])
>>>>>>>>>>>javax.persistence.RollbackException: Exception [TOPLINK-4002]
>>>>>>>>>>>(Oracle TopLink Essentials - 2006.8 (Build 060830)):
>>>>>>>>>>>oracle.toplink.essentials.exceptions.DatabaseException
>>>>>>>>>>>Internal Exception: java.sql.SQLException:
>>>>>>>>>>>[SKATE\SQLEXPRESS]Cannot insert the value NULL into column
>>>>>>>>>>>'LastWriteTime', table 'ReservationsDev.dbo.Item'; column does
>>>>>>>>>>>not allow nulls. INSERT fails.Error Code: 515
>>>>>>>>>>>Call:INSERT INTO Item (Name, CreationUserName, Description,
>>>>>>>>>>>LastWriteUserName, LastWriteTime, CreationTime) VALUES (?, ?, ?,
>>>>>>>>>>>?, ?, ?)
>>>>>>>>>>> bind => [testSaveItem Wed Jan 03 14:43:08 CST 2007, null,
>>>>>>>>>>> Description, null, null, null]
>>>>>>>>>>>Query:InsertObjectQuery([id = null, name = "testSaveItem Wed Jan
>>>>>>>>>>>03 14:43:08 CST 2007", description = "Description"])
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:109)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.ejb.cmp3.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:45)
>>>>>>>>>>> at
>>>>>>>>>>> edu.uchicago.at.reservations.ReservationsService.saveItem(ReservationsService.java:254)
>>>>>>>>>>> at
>>>>>>>>>>> edu.uchicago.at.reservations.ReservationsServiceTest.testSaveGetAndRemoveItem(ReservationsServiceTest.java:44)
>>>>>>>>>>>Caused by: Exception [TOPLINK-4002] (Oracle TopLink Essentials -
>>>>>>>>>>>2006.8 (Build 060830)):
>>>>>>>>>>>oracle.toplink.essentials.exceptions.DatabaseException
>>>>>>>>>>>Internal Exception: java.sql.SQLException:
>>>>>>>>>>>[SKATE\SQLEXPRESS]Cannot insert the value NULL into column
>>>>>>>>>>>'LastWriteTime', table 'ReservationsDev.dbo.Item'; column does
>>>>>>>>>>>not allow nulls. INSERT fails.Error Code: 515
>>>>>>>>>>>Call:INSERT INTO Item (Name, CreationUserName, Description,
>>>>>>>>>>>LastWriteUserName, LastWriteTime, CreationTime) VALUES (?, ?, ?,
>>>>>>>>>>>?, ?, ?)
>>>>>>>>>>> bind => [testSaveItem Wed Jan 03 14:43:08 CST 2007, null,
>>>>>>>>>>> Description, null, null, null]
>>>>>>>>>>>Query:InsertObjectQuery([id = null, name = "testSaveItem Wed Jan
>>>>>>>>>>>03 14:43:08 CST 2007", description = "Description"])
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.exceptions.DatabaseException.sqlException(DatabaseException.java:295)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:639)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:688)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:477)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:437)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.AbstractSession.executeCall(AbstractSession.java:675)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:213)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:199)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.insertObject(DatasourceCallQueryMechanism.java:331)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:176)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:190)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:457)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.InsertObjectQuery.executeCommit(InsertObjectQuery.java:74)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.performUserDefinedWrite(DatabaseQueryMechanism.java:635)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.performUserDefinedInsert(DatabaseQueryMechanism.java:599)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.insertObjectForWriteWithChangeSet(DatabaseQueryMechanism.java:495)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.WriteObjectQuery.executeCommitWithChangeSet(WriteObjectQuery.java:130)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:283)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:67)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.DatabaseQuery.execute(DatabaseQuery.java:609)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:536)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:123)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:95)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2218)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:937)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:894)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:254)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:175)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:2638)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1030)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:357)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1112)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:82)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:842)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:90)
>>>>>>>>>>> ... 18 more
>>>>>>>>>>>Caused by: java.sql.SQLException: [SKATE\SQLEXPRESS]Cannot insert
>>>>>>>>>>>the value NULL into column 'LastWriteTime', table
>>>>>>>>>>>'ReservationsDev.dbo.Item'; column does not allow nulls. INSERT
>>>>>>>>>>>fails.
>>>>>>>>>>> at com.inet.tds.a.a(Unknown Source)
>>>>>>>>>>> at com.inet.tds.c.new(Unknown Source)
>>>>>>>>>>> at com.inet.tds.c.executeUpdate(Unknown Source)
>>>>>>>>>>> at
>>>>>>>>>>> oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:632)
>>>>>>>>>>> ... 51 more
>>>>>>>>>>>
>>>>>>>>>>>// AuditObject.java
>>>>>>>>>>>package edu.uchicago.at.common.persistence.entity;
>>>>>>>>>>>
>>>>>>>>>>>import java.io.Serializable;
>>>>>>>>>>>import java.util.Date;
>>>>>>>>>>>import java.util.logging.Logger;
>>>>>>>>>>>import javax.persistence.Column;
>>>>>>>>>>>import javax.persistence.MappedSuperclass;
>>>>>>>>>>>import javax.persistence.PrePersist;
>>>>>>>>>>>import javax.persistence.PreUpdate;
>>>>>>>>>>>import javax.persistence.Temporal;
>>>>>>>>>>>import javax.persistence.TemporalType;
>>>>>>>>>>>
>>>>>>>>>>>@MappedSuperclass
>>>>>>>>>>>public abstract class AuditObject implements Serializable {
>>>>>>>>>>> private Date creationTime;
>>>>>>>>>>> private String creationUserName;
>>>>>>>>>>> private Date lastWriteTime;
>>>>>>>>>>> private String lastWriteUserName;
>>>>>>>>>>> private static Logger logger = Logger.getLogger(
>>>>>>>>>>> AuditObject.class.getName());
>>>>>>>>>>>
>>>>>>>>>>> @Column(name="CreationTime", nullable=false)
>>>>>>>>>>> @Temporal(TemporalType.TIMESTAMP)
>>>>>>>>>>> public Date getCreationTime() {
>>>>>>>>>>> return creationTime;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setCreationTime(Date creationTime) {
>>>>>>>>>>> this.creationTime = creationTime;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @Column(name="CreationUserName",
>>>>>>>>>>> columnDefinition="nvarchar(255)")
>>>>>>>>>>> public String getCreationUserName() {
>>>>>>>>>>> return creationUserName;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setCreationUserName(String creationUserName) {
>>>>>>>>>>> this.creationUserName = creationUserName;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @Column(name="LastWriteTime", nullable=false)
>>>>>>>>>>> @Temporal(TemporalType.TIMESTAMP)
>>>>>>>>>>> public Date getLastWriteTime() {
>>>>>>>>>>> return lastWriteTime;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setLastWriteTime(Date lastWriteTime) {
>>>>>>>>>>> this.lastWriteTime = lastWriteTime;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @Column(name="LastWriteUserName",
>>>>>>>>>>> columnDefinition="nvarchar(255)")
>>>>>>>>>>> public String getLastWriteUserName() {
>>>>>>>>>>> return lastWriteUserName;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setLastWriteUserName(String lastWriteUserName) {
>>>>>>>>>>> this.lastWriteUserName = lastWriteUserName;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @PrePersist
>>>>>>>>>>> public void prePersist() {
>>>>>>>>>>> Date d = new Date();
>>>>>>>>>>> setCreationTime(d);
>>>>>>>>>>> setLastWriteTime(d);
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @PreUpdate
>>>>>>>>>>> public void preUpdate() {
>>>>>>>>>>> Date d = new Date();
>>>>>>>>>>> setLastWriteTime(d);
>>>>>>>>>>> }
>>>>>>>>>>>}
>>>>>>>>>>>
>>>>>>>>>>>// Item.java
>>>>>>>>>>>package edu.uchicago.at.reservations.persistence.entity;
>>>>>>>>>>>
>>>>>>>>>>>import edu.uchicago.at.common.persistence.entity.AuditObject;
>>>>>>>>>>>import java.util.ArrayList;
>>>>>>>>>>>import java.util.Collection;
>>>>>>>>>>>import javax.persistence.Column;
>>>>>>>>>>>import javax.persistence.Entity;
>>>>>>>>>>>import javax.persistence.GeneratedValue;
>>>>>>>>>>>import javax.persistence.GenerationType;
>>>>>>>>>>>import javax.persistence.Id;
>>>>>>>>>>>import javax.persistence.JoinColumn;
>>>>>>>>>>>import javax.persistence.JoinTable;
>>>>>>>>>>>import javax.persistence.ManyToMany;
>>>>>>>>>>>import javax.persistence.Table;
>>>>>>>>>>>
>>>>>>>>>>>@Entity
>>>>>>>>>>>@Table(name="Item")
>>>>>>>>>>>public class Item extends AuditObject {
>>>>>>>>>>> private String description;
>>>>>>>>>>> private Integer id;
>>>>>>>>>>> private String name;
>>>>>>>>>>> private Collection<Reservation> reservations = new
>>>>>>>>>>> ArrayList<Reservation>();
>>>>>>>>>>> private Collection<Item> subItems = new ArrayList<Item>();
>>>>>>>>>>> private Collection<Item> superItems = new ArrayList<Item>();
>>>>>>>>>>>
>>>>>>>>>>> public Item() {
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public Item(String name) {
>>>>>>>>>>> setName(name);
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public boolean contains(Item item) {
>>>>>>>>>>> for(Item i : subItems) {
>>>>>>>>>>> if (i.id == item.id) {
>>>>>>>>>>> return true;
>>>>>>>>>>> }
>>>>>>>>>>> if (i.contains(item)) {
>>>>>>>>>>> return true;
>>>>>>>>>>> }
>>>>>>>>>>> }
>>>>>>>>>>> return false;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @Column(name="Description", columnDefinition="nvarchar(max)")
>>>>>>>>>>> public String getDescription() {
>>>>>>>>>>> return description;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setDescription(String description) {
>>>>>>>>>>> this.description = description;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @Id
>>>>>>>>>>> @GeneratedValue(strategy = GenerationType.IDENTITY)
>>>>>>>>>>> @Column(name="Id")
>>>>>>>>>>> public Integer getId() {
>>>>>>>>>>> return id;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setId(Integer id) {
>>>>>>>>>>> this.id = id;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @Column(name="Name", columnDefinition="nvarchar(255)")
>>>>>>>>>>> public String getName() {
>>>>>>>>>>> return name;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setName(String name) {
>>>>>>>>>>> this.name = name;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @ManyToMany(mappedBy="items")
>>>>>>>>>>> public Collection<Reservation> getReservations() {
>>>>>>>>>>> return reservations;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setReservations(Collection<Reservation>
>>>>>>>>>>> reservations) {
>>>>>>>>>>> this.reservations = reservations;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @ManyToMany
>>>>>>>>>>> @JoinTable(name="ItemItem",
>>>>>>>>>>> joinColumns={_at_JoinColumn(name="ItemId")},
>>>>>>>>>>> inverseJoinColumns={_at_JoinColumn(name="SubItemId")})
>>>>>>>>>>> public Collection<Item> getSubItems() {
>>>>>>>>>>> return subItems;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setSubItems(Collection<Item> subItems) {
>>>>>>>>>>> this.subItems = subItems;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> @ManyToMany(mappedBy="subItems")
>>>>>>>>>>> public Collection<Item> getSuperItems() {
>>>>>>>>>>> return superItems;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public void setSuperItems(Collection<Item> superItems) {
>>>>>>>>>>> this.superItems = superItems;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> public String toString() {
>>>>>>>>>>> StringBuilder sb = new StringBuilder();
>>>>>>>>>>> sb.append("[");
>>>>>>>>>>> sb.append(String.format("id = %d", id));
>>>>>>>>>>> sb.append(String.format(", name = \"%s\"", name));
>>>>>>>>>>> sb.append(String.format(", description = \"%s\"",
>>>>>>>>>>> description));
>>>>>>>>>>> sb.append("]");
>>>>>>>>>>> return sb.toString();
>>>>>>>>>>> }
>>>>>>>>>>>}
>>>>>>>>>>>
>>>>>>>>>>>Jon
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>