Hi folks,
I have a little application that goes like this: a property has a number of
offers on it. an offer has a person who placed the offer and the person has an
address.
so:
| @Entity
| @Name("property")
| public class Property implements Serializable
| {
| /**
| * Default Constructor.
| */
| public Property()
| {
| }
|
| /**
| * Get the property identifier.
| */
| @Id(generate=GeneratorType.AUTO)
| public Integer getId()
| {
| return id;
| }
|
| /**
| * Set the property identifier.
| */
| public void setId(Integer id)
| {
| this.id = id;
| }
|
| /**
| * Get the list of offers on <code>this</code> property.
| */
| @OneToMany(cascade = CascadeType.ALL)
| public List<Offer> getOffers()
| {
| return offers;
| }
|
| /**
| * Set an offer on this property.
| *
| * @pre offer != null
| * @post An offer has been placed on this property.
| */
| public void setOffers(List<Offer> offers)
| {
| this.offers = offers;
| }
|
| /**
| * Add an offer on this property.
| *
| * @pre offer != null
| * @post An offer has been placed on this property.
| */
| public void addOffer(Offer offer)
| {
| this.offers.add(offer);
| }
|
| /**
| * The property attributes
| */
| private int id;
| private List<Offer> offers = new ArrayList<Offer>();
| }
|
the offer.
| @Entity
| @Name("offer")
| public class Offer implements Serializable
| {
| /**
| * Default Constructor.
| */
| public Offer()
| {
| person = new Person();
| }
|
| /**
| * Get the offer identifier.
| */
| @Id(generate=GeneratorType.AUTO)
| public Integer getId()
| {
| return id;
| }
|
| /**
| * Set the offer identifier.
| */
| public void setId(Integer id)
| {
| this.id = id;
| }
|
| /**
| * Get the offer amount.
| */
| public double getAmount()
| {
| return amount;
| }
|
| /**
| * Set the offer amount.
| *
| * @pre amount != null
| * @post The offer amount for <code>this</code> has been set.
| */
| public void setAmount(double amount)
| {
| this.amount = amount;
| }
|
| /**
| * Get the date the offer was placed on.
| */
| @Basic(temporalType=TemporalType.DATE)
| @NotNull
| public Date getDate()
| {
| return date;
| }
|
| /**
| * Set the date the offer was placed on.
| */
| public void setDate(Date date)
| {
| this.date = date;
| }
|
| /**
| * Get the person who placed the offer on the house.
| */
| @OneToOne(cascade = CascadeType.ALL)
| @NotNull(message="Please supply the person who placed this offer.")
| public Person getPerson()
| {
| return person;
| }
|
| /**
| * Set the person who made the offer.
| *
| * @pre person != null
| * @post The person for <code>this</code> has been set.
| */
| public void setPerson(Person person)
| {
| this.person = person;
| }
|
| /**
| * The offer attributes
| */
| private int id;
| private double amount;
| private Date date;
| private Person person;
| }
|
|
the code to delete an offer:
| @Scope(EVENT)
| @Name("editOffer")
| @LoggedIn
| public class EditOfferAction
| {
| /**
| * Update an offer on a property.
| */
| @IfInvalid(outcome=REDISPLAY)
| public String update()
| {
| log.info(">>> editing offer");
| propertyDatabase.persist(offer);
| propertyDatabase.flush();
| log.info("<<< edited offer");
|
| return "updateOfferSuccess";
| }
|
| /**
| * Remove the specified offer from the database.
| */
| @IfInvalid(outcome=REDISPLAY)
| public String delete()
| {
| log.info(">>> deleting offer");
|
| log.info("session isDirty=" + propertyDatabase.isDirty());
|
| log.info("**** DELETING OFFER");
| propertyDatabase.delete(offer);
| log.info("**** FLUSHING SESSION");
| propertyDatabase.flush();
| log.info("session isDirty=" + propertyDatabase.isDirty());
| log.info("<<< deleted offer");
|
| return "deleteOfferSuccess";
| }
|
| /**
| * Is the offer object to update.
| */
| @In
| private Offer offer;
|
| /**
| * Is the property database.
| */
| @In(create=true)
| private Session propertyDatabase;
|
| /**
| * Is the JSF Context.
| */
| @In
| private FacesContext facesContext;
|
| /**
| * Is logger for this class.
| */
| private static final Logger log =
| Logger.getLogger(EditOfferAction.class);
|
| }
|
I can't seem to get the delete to work. I'm getting TransientObjectExceptions
on the reference to the Person class. So I then tried to persist the person
before that and then after the delete hibernate is inserting rows? I'm a bit
confused to be honest. I thought the annotation for CascadeType.ALL would have
managed this for me?
Hope someone can point me in the right direction.
Thanks,
Marty
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