I have an issue with creating a query with hibernate template. I've take a look at many tutorial and i create my query that look like this
List fids = getHibernateTemplate().execute(new HibernateCallback<List>() {
#Override
public List doInHibernate(Session session) throws HibernateException {
Query query = session.createQuery(
"SELECT DISTINCT m.fournisseurs_id FROM Medicamentfournisseur as m, Composantcommandeclient as c WHERE c.medicamentsFournisseurs_id= m.id AND c.commandeclients_id = :id"
);
query.setParameter(":id", id);
return query.list();
}
});
I try query in SQL console and it works but in my apps i got this error :
error :could not resolve property: fournisseurs_id of: com.project.caritas.model.Medicamentfournisseur [SELECT DISTINCT m.fournisseurs_id FROM com.project.caritas.model.Medicamentfournisseur as m, com.project.caritas.model.Composantcommandeclient as c WHERE c.medicamentsFournisseurs_id= m.id AND c.commandeclients_id = :id]; nested exception is org.hibernate.QueryException: could not resolve property: fournisseurs_id of: com.project.caritas.model.Medicamentfournisseur [SELECT DISTINCT m.fournisseurs_id FROM com.project.caritas.model.Medicamentfournisseur as m, com.project.caritas.model.Composantcommandeclient as c WHERE c.medicamentsFournisseurs_id= m.id AND c.commandeclients_id = :id]
there is my POJO
#Entity
#Table(name = "medicamentfournisseur", catalog = "salama")
public class Medicamentfournisseur implements java.io.Serializable {
private Integer id;
private Fournisseur fournisseur;
private double prix;
private String designation;
private String laboratoire;
private String datePeremption;
private String tva;
private Integer disponible;
private Set composantcommandeclients = new HashSet(0);
public Medicamentfournisseur() {
}
public Medicamentfournisseur(Fournisseur fournisseur, double prix, String datePeremption) {
this.fournisseur = fournisseur;
this.prix = prix;
this.datePeremption = datePeremption;
}
public Medicamentfournisseur(Fournisseur fournisseur, double prix, String designation, String laboratoire, String datePeremption, String tva, Integer disponible, Set composantcommandeclients) {
this.fournisseur = fournisseur;
this.prix = prix;
this.designation = designation;
this.laboratoire = laboratoire;
this.datePeremption = datePeremption;
this.tva = tva;
this.disponible = disponible;
this.composantcommandeclients = composantcommandeclients;
}
#Id
#GeneratedValue(strategy = IDENTITY)
#Column(name = "id", unique = true, nullable = false)
public Integer getId() {
return this.id;
}
public void setId(Integer id) {
this.id = id;
}
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "fournisseurs_id", nullable = false)
public Fournisseur getFournisseur() {
return this.fournisseur;
}
public void setFournisseur(Fournisseur fournisseur) {
this.fournisseur = fournisseur;
}
#Column(name = "prix", nullable = false, precision = 22, scale = 0)
public double getPrix() {
return this.prix;
}
public void setPrix(double prix) {
this.prix = prix;
}
#Column(name = "designation", length = 200)
public String getDesignation() {
return this.designation;
}
public void setDesignation(String designation) {
this.designation = designation;
}
#Column(name = "laboratoire", length = 200)
public String getLaboratoire() {
return this.laboratoire;
}
public void setLaboratoire(String laboratoire) {
this.laboratoire = laboratoire;
}
#Column(name = "datePeremption", nullable = false, length = 200)
public String getDatePeremption() {
return this.datePeremption;
}
public void setDatePeremption(String datePeremption) {
this.datePeremption = datePeremption;
}
#Column(name = "tva", length = 50)
public String getTva() {
return this.tva;
}
public void setTva(String tva) {
this.tva = tva;
}
#Column(name = "disponible")
public Integer getDisponible() {
return this.disponible;
}
public void setDisponible(Integer disponible) {
this.disponible = disponible;
}
#OneToMany(fetch = FetchType.LAZY, mappedBy = "medicamentfournisseur")
#JsonIgnore
public Set getComposantcommandeclients() {
return this.composantcommandeclients;
}
public void setComposantcommandeclients(Set composantcommandeclients) {
this.composantcommandeclients = composantcommandeclients;
}
}
If someone can explain me how to solve this.
PS: Sorry for my bad english
you should use:
SELECT DISTINCT m.fournisseurs FROM Medicamentfournisseur as m ...
Because this is not a sql actually, it is a HQL of hibernate like sql. You should use the member name in java but not table column name.
I m trying to learn about hibernate and Criteria.
i have 2 tables RATS and SICKNESS.
I set a foreign key in RATS : RATS.Sickness_Id = SICKNESS.ID.
I m trying to get with Criteria an equivalent of SQL:
select * from RATS r, SICKNESS s where s.id = r.sickness_id
I assumed it was this association:
session
.createCriteria(Rats.class)
.createCriteria(Sickness.class)
.toList()
This unfortunately ends up with:
org.hibernate.QueryException: could not resolve property: entities of: entities.Rats
Strange part is that both:
session.createCriteria(Rats.class).toList()
and
session.createCriteria(Sickness.class).toList()
work fine....
I'm a bit puzzled.
Here are my entities classes code:
#Entity
#Table(name = "RATS")
public class Rats implements java.io.Serializable {
private int id;
private Sickness sickness;
private String name;
private int age;
public Rats() {
}
public Rats(int id, String name, int age) {
this.id = id;
this.name = name;
this.age = age;
}
public Rats(int id, Sickness sickness, String name, int age) {
this.id = id;
this.sickness = sickness;
this.name = name;
this.age = age;
}
#Id
#Column(name = "ID", unique = true, nullable = false)
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "Sickness_Id")
public Sickness getSickness() {
return this.sickness;
}
public void setSickness(Sickness sickness) {
this.sickness = sickness;
}
#Column(name = "Name", nullable = false, length = 50)
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
#Column(name = "Age", nullable = false)
public int getAge() {
return this.age;
}
public void setAge(int age) {
this.age = age;
}
#Override
public String toString() {
String returnString = "My name is " + getName() + ", I am " + getAge()+ ". ";
returnString += getSickness() == null ? "I am healthy like hell! :)" : "I suffer from " + getSickness().getNom();
return returnString;
}
}
and
#Entity
#Table(name = "SICKNESS")
public class Sickness implements java.io.Serializable {
private int id;
private String nom;
private Set<Rats> ratses = new HashSet<Rats>(0);
public Sickness() {
}
public Sickness(int id) {
this.id = id;
}
public Sickness(int id, String nom, Set<Rats> ratses) {
this.id = id;
this.nom = nom;
this.ratses = ratses;
}
#Id
#Column(name = "Id", unique = true, nullable = false)
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
#Column(name = "Nom", length = 50)
public String getNom() {
return this.nom;
}
public void setNom(String nom) {
this.nom = nom;
}
#OneToMany(fetch = FetchType.LAZY, mappedBy = "sickness")
public Set<Rats> getRatses() {
return this.ratses;
}
public void setRatses(Set<Rats> ratses) {
this.ratses = ratses;
}
#Override
public String toString() {
return getNom()
+ ( getRatses() != null ? (", getRatses()=" + getRatses() + "]"): "" );
}
}
What did I miss?
Thanks in advance.
On Rats entity, the Sickness entity property is:
private Sickness sickness;
Accordingly, your association must use the same name.
session.createCriteria(Rats.class)
.createCriteria("sickness")
.list();
One other solution, should be to change Rats to use EAGER Fetch:
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name = "Sickness_Id")
public Sickness getSickness() {
return this.sickness;
}
public void setSickness(Sickness sickness) {
this.sickness = sickness;
}
and then use:
session.createCriteria(Rats.class)
.list();
When using EntityManager's merge method on WebSphere Application Server 7 with MS SQL Server 2008 to update entity in database, wrong SQL query being generated (no update parameters after SET keyword (see stacktrace below)).
Most likely this issue occurs when I'm trying to merge entity with no changes regarding DB, but this aint gettin me closer to solution.
Does anybody has a solution/workaround for this?
Caused by: <openjpa-1.2.4-SNAPSHOT-r422266:1481680 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: Неправильный синтаксис около ключевого слова "WHERE". {prepstmnt 1814850604 UPDATE COMPANY_REF SET WHERE ID = ? [params=(int) 11751]} [code=156, state=S0001]
FailedObject: ru.hostco.jpa.Company-11751
at org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4315)
at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4280)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:102)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:72)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:132)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:90)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:73)
at org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flushPrimaryRow(OperationOrderUpdateManager.java:203)
at org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flush(OperationOrderUpdateManager.java:89)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:91)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:74)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:721)
at org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:130)
... 51 more
Edit 1
There is some code of entity entity and merging.
#Stateless
public class CompanyPersistanceManagerImpl implements CompanyPersistanceManager {
private static Logger _logger = Logger
.getLogger(CompanyPersistanceManagerImpl.class.getName());
#PersistenceContext(unitName = "ListGatewayJPA")
private EntityManager entityManager;
#EJB
private SettingsPersistenceManager settingsPersistenceManager;
...
#Override
public Company updateCompany(Company company) {
company = entityManager.merge(company);
entityManager.flush();
return company;
}
...
}
#Entity
#Table(name = "COMPANY_REF")
#NamedQueries({
#NamedQuery(name = "getAllCompanies", query = "SELECT c FROM Company c ORDER BY c.name"),
#NamedQuery(name = "getCompanyByName", query = "SELECT c FROM Company c WHERE c.name = :name"),
#NamedQuery(name = "getCompanyByDeltaCode", query = "SELECT c FROM Company c WHERE c.code = :code"),
#NamedQuery(name = "getCompanyById", query = "SELECT c FROM Company c WHERE c.id = :ID"), })
public class Company implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "ID")
private int id;
#Column(name = "NAME")
private String name;
#Column(name = "INN")
private String inn;
#Column(name = "ENCODING")
private String encoding;
#Column(name = "CODE")
private String code;
#Column(name = "ACC", length = 20)
private String acc;
#Column(name = "FEE_ACC", length = 20)
private String feeAcc;
#Column(name = "WWA", length = 7)
private String wwa;
#OneToOne(cascade = CascadeType.ALL)
#JoinColumn(name = "BENATTR_ID")
#ForeignKey
private Benattr benattr;
#ManyToMany(fetch = FetchType.EAGER)
#JoinTable(name = "COMPANY_TRANSFERTYPE_REL", joinColumns = { #JoinColumn(name = "COMPANY_ID", referencedColumnName = "ID") }, inverseJoinColumns = { #JoinColumn(name = "TRANSFER_TYPE_ID", referencedColumnName = "ID") })
private Set<TransferType> transferType;
public static enum WWA_VALUES {
NEVER, ALWAYS, REQUEST
}
#Transient
private RGAORG info;
#Transient
private boolean selected = false;
public Company() {
super();
}
public String getAcc() {
return acc;
}
public void setAcc(String acc) {
this.acc = acc;
}
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getInn() {
return this.inn;
}
public void setInn(String inn) {
this.inn = inn;
}
public String getEncoding() {
return this.encoding;
}
public void setEncoding(String encoding) {
this.encoding = encoding;
}
public Set<TransferType> getTransferType() {
if (transferType == null) {
transferType = new HashSet<TransferType>();
}
return transferType;
}
public void setTransferType(Set<TransferType> transferType) {
this.transferType = transferType;
}
public TransferType[] getTransferTypeAsArray() {
TransferType[] arr = null;
if (transferType != null) {
arr = new TransferType[transferType.size()];
return transferType.toArray(arr);
} else {
arr = new TransferType[0];
return arr;
}
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public RGAORG getInfo() {
return info;
}
public void setInfo(RGAORG info) {
this.info = info;
}
public boolean isSelected() {
return selected;
}
public void setSelected(boolean selected) {
this.selected = selected;
}
/*
* (non-Javadoc)
*
* #see java.lang.Object#hashCode()
*/
#Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + id;
return result;
}
/*
* (non-Javadoc)
*
* #see java.lang.Object#equals(java.lang.Object)
*/
#Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof Company)) {
return false;
}
Company other = (Company) obj;
if (id != other.id) {
return false;
}
return true;
}
public String getFeeAcc() {
return feeAcc;
}
public void setFeeAcc(String feeAcc) {
this.feeAcc = feeAcc;
}
public String getWwa() {
return wwa;
}
public void setWwa(String wwa) {
this.wwa = wwa;
}
public Benattr getBenattr() {
return benattr;
}
public void setBenattr(Benattr benattr) {
this.benattr = benattr;
}
}
I think you use the unstable 1.2.4-SNAPSHOT version of OpenJPA. I would downgrade it to 1.2.3 and see if the problem still occurs.
On the other side, I suppose the error occurs (please test that) only if OpenJPA does not have any fields to update. In this case, I would simply surround the code with an try-catch block, and ignore the error (you asked for a workaround).
I have following classes in my project.
Employee class
#XmlRootElement
#Entity
#Table(name = "emp", catalog = "emps")
public class Employee implements java.io.Serializable {
//other entity variables
private Set<Title> titles = new HashSet<Title>(0);
#XmlTransient
#OneToMany(targetEntity = Title.class, fetch = FetchType.EAGER, mappedBy = "employee", cascade=CascadeType.ALL)
public Set<Title> getTitles() {
return this.titles;
}
public void setTitles(Set<Title> titles) {
this.titles = titles;
}
}
Title
#Entity
#Table(name = "titles", catalog = "emps")
public class Title implements java.io.Serializable {
private TitleId id;
private Employee employee;
private Date fromDate;
private Date toDate;
public Title() {
}
public Title(TitleId id, Employee employee) {
this.id = id;
this.employee = employee;
}
public Title(TitleId id, Employee employee, Date toDate) {
this.id = id;
this.employee = employee;
this.toDate = toDate;
}
#EmbeddedId
#AttributeOverrides({
#AttributeOverride(name = "empNo", column = #Column(name = "emp_no", nullable = false)),
#AttributeOverride(name = "title", column = #Column(name = "title", nullable = false, length = 50)),
#AttributeOverride(name = "fromDate", column = #Column(name = "from_date", nullable = false, length = 10)) })
public TitleId getId() {
return this.id;
}
public void setId(TitleId id) {
this.id = id;
}
//rest of the code
}
Title Id
#Embeddable
public class TitleId implements java.io.Serializable {
private int empNo;
private String title;
private Date fromDate;
public TitleId() {
}
public TitleId(int empNo, String title, Date fromDate) {
this.empNo = empNo;
this.title = title;
this.fromDate = fromDate;
}
#Column(name = "emp_no", nullable = false)
public int getEmpNo() {
return this.empNo;
}
public void setEmpNo(int empNo) {
this.empNo = empNo;
}
#Column(name = "title", nullable = false, length = 50)
public String getTitle() {
return this.title;
}
public void setTitle(String title) {
this.title = title;
}
#Column(name = "from_date", nullable = false, length = 10)
public Date getFromDate() {
return this.fromDate;
}
public void setFromDate(Date fromDate) {
this.fromDate = fromDate;
}
public boolean equals(Object other) {
if ((this == other))
return true;
if ((other == null))
return false;
if (!(other instanceof TitleId))
return false;
TitleId castOther = (TitleId) other;
return (this.getEmpNo() == castOther.getEmpNo())
&& ((this.getTitle() == castOther.getTitle()) || (this
.getTitle() != null && castOther.getTitle() != null && this
.getTitle().equals(castOther.getTitle())))
&& ((this.getFromDate() == castOther.getFromDate()) || (this
.getFromDate() != null
&& castOther.getFromDate() != null && this
.getFromDate().equals(castOther.getFromDate())));
}
public int hashCode() {
int result = 17;
result = 37 * result + this.getEmpNo();
result = 37 * result
+ (getTitle() == null ? 0 : this.getTitle().hashCode());
result = 37 * result
+ (getFromDate() == null ? 0 : this.getFromDate().hashCode());
return result;
}
}
I need to create a criteria to find the first name, last name and title of the users. The first name and last names are working fine in my criteria. The following code shows how I create my criteria for titles. "jobTitle" is a parameter that I'm passing to it.
Criteria employeeSearchCriteria = getSession().createCriteria(Employee.class);
employeeSearchCriteria.setFirstResult(0);
employeeSearchCriteria.setMaxResults(6);
employeeSearchCriteria.createAlias("titles.TitleId", "titleId");
employeeSearchCriteria.add(Restrictions.eq("titleId.title", jobTitle));
When I run the code it throws an Query Exception saying org.hibernate.QueryException: could not resolve property: TitleId of: Title. Can anyone help me in this matter?
I'm guessing here, but try changing in class Title the getter method name from getId() to getTitleId().
Otherwise, I can just say that all of the examples I saw that uses #EmbeddedId show how to do it on the field itself, rather than on the getter as you did. So you might just as well try also to annotate the field (although Hibernate recommends not to mix method and field mapping annotations).
Been messing around with Hibernate and PostgreSQL trying to get it to work as expected.
But for some reason when I try to persist an object with a #OneToMany relationship with more than one item in the set all but the first item seem to be ignored. I've tried this via local and remote interfaces but get the same results each time. No exceptions are thrown, it looks like hibernate just stops persisting after the first unit has been persisted.
Any help much appreciated this one has been eluding me for days now.
I'm using Hibernate 3.5 and PostgreSQL 8.4.4 with Glassfish v3. All the annotations in the source are from the package javax.persistence - had to remove imports because of the character limit.
The FacadeManager is simply a utility to take the hassle out of jndi lookups, it simplifies accessing remote facades.
Here is the test method
#Test
public void testOneToManyCascade() throws Exception {
/*
* Set up entities requred to perform the test
*/
UnitFacadeRemote unitfr = FacadeManager
.getFacade(UnitFacadeRemote.class);
UserFacadeRemote userfr = FacadeManager
.getFacade(UserFacadeRemote.class);
User user = new User("P", "P", "000000", true, new Date(), "ypy#ypy",
"wordof mout", "slacker", "password");
Address address = new Address("yo", "go", "YOKO", "4123");
address.setCountry(FacadeManager.getFacade(CountryFacadeRemote.class)
.find(2));
user.setAddress(address);
Unit unit1 = new Unit(1, "Test Unit1", new Date(), "DisService",
"MyNation");
Unit unit2 = new Unit(2, "Test Unit2", new Date(), "DisService",
"TheirNation");
Unit unit3 = new Unit(3, "Test Unit3", new Date(), "DisService",
"TheirNation");
// Check no game exists
assertThat(FacadeManager.getFacade(GameFacadeRemote.class).findAll()
.size(), is(0));
Game game = new Game("blabla", 3333, "A game!", true);
// Create game and return reference to persisted game instance
game = FacadeManager.getFacade(GameFacadeRemote.class).registerGame(
game);
unit1.setGame(game);
unit2.setGame(game);
unit3.setGame(game);
// Find a virtue
Virtue v = FacadeManager.getFacade(VirtueFacadeRemote.class).find(1);
unit1.setVirtue(v);
unit2.setVirtue(v);
unit3.setVirtue(v);
// check that none of the above exist already
assertThat(userfr.findAll().size(), is(0));
assertThat(unitfr.findAll().size(), is(0));
/*
* Try persisting the by cascading from the user
*/
Set<Unit> unitSet = new HashSet<Unit>();
unitSet.add(unit2);
unitSet.add(unit1);
unitSet.add(unit3);
user.setUnitSet(unitSet);
unit1.setUser(user);
unit2.setUser(user);
unit3.setUser(user);
// Persist
userfr.create(user);
/*
* The result of the preceding persist is that the game, user, address
* and one unit are persisted, in this case unit2 but it seems whichever
* unit is first added to unitSet is the one that is persisted.
*/
}
Here follow the various entity classes
package com.game.database.entity;
#Entity
#Table(name = "address")
#NamedQueries({
#NamedQuery(name = "Address.findAll", query = "SELECT a FROM Address a"),
#NamedQuery(name = "Address.findById", query = "SELECT a FROM Address a WHERE a.id = :id"),
#NamedQuery(name = "Address.findByLine1", query = "SELECT a FROM Address a WHERE a.line1 = :line1"),
#NamedQuery(name = "Address.findByLine2", query = "SELECT a FROM Address a WHERE a.line2 = :line2"),
#NamedQuery(name = "Address.findByCity", query = "SELECT a FROM Address a WHERE a.city = :city"),
#NamedQuery(name = "Address.findByAreaCode", query = "SELECT a FROM Address a WHERE a.areaCode = :areaCode") })
public class Address implements Serializable {
private static final long serialVersionUID = 1L;
#SequenceGenerator(name = "address_id_seq", sequenceName = "address_id_seq", allocationSize = 1)
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "address_id_seq")
#Basic(optional = false)
#Column(name = "id")
private Integer id;
#Basic(optional = false)
#Column(name = "line1")
private String line1;
#Basic(optional = false)
#Column(name = "line2")
private String line2;
#Basic(optional = false)
#Column(name = "city")
private String city;
#Basic(optional = false)
#Column(name = "areaCode")
private String areaCode;
#JoinColumn(name = "country", referencedColumnName = "id")
#ManyToOne(optional = false)
private Country country;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "address")
private Set<User> userSet;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "address")
private Set<CardDetails> cardDetailsSet;
public Address() {
}
public Address(Integer id) {
this.id = id;
}
public Address(String line1, String line2, String city, String areaCode) {
this.line1 = line1;
this.line2 = line2;
this.city = city;
this.areaCode = areaCode;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getLine1() {
return line1;
}
public void setLine1(String line1) {
this.line1 = line1;
}
public String getLine2() {
return line2;
}
public void setLine2(String line2) {
this.line2 = line2;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getAreaCode() {
return areaCode;
}
public void setAreaCode(String areaCode) {
this.areaCode = areaCode;
}
public Country getCountry() {
return country;
}
public void setCountry(Country country) {
this.country = country;
}
public Set<User> getUserSet() {
return userSet;
}
public void setUserSet(Set<User> userSet) {
this.userSet = userSet;
}
public Set<CardDetails> getCardDetailsSet() {
return cardDetailsSet;
}
public void setCardDetailsSet(Set<CardDetails> cardDetailsSet) {
this.cardDetailsSet = cardDetailsSet;
}
#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 Address)) {
return false;
}
Address other = (Address) 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.game.database.entity.Address[id=" + id + "]";
}
}
--
package com.game.database.entity;
#Entity
#Table(name = "game")
#NamedQueries({
#NamedQuery(name = "Game.findAll", query = "SELECT g FROM Game g"),
#NamedQuery(name = "Game.findById", query = "SELECT g FROM Game g WHERE g.id = :id"),
#NamedQuery(name = "Game.findByHost", query = "SELECT g FROM Game g WHERE g.host = :host"),
#NamedQuery(name = "Game.findByPort", query = "SELECT g FROM Game g WHERE g.port = :port"),
#NamedQuery(name = "Game.findByDescription", query = "SELECT g FROM Game g WHERE g.description = :description"),
#NamedQuery(name = "Game.findByActive", query = "SELECT g FROM Game g WHERE g.active = :active"),
#NamedQuery(name = "Game.findByHostAndPort", query = "SELECT g FROM Game g WHERE g.host = :host AND g.port = :port") })
public class Game implements Serializable {
private static final long serialVersionUID = 1L;
#SequenceGenerator(name = "game_id_seq", sequenceName = "game_id_seq", allocationSize = 1)
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "game_id_seq")
#Basic(optional = false)
#Column(name = "id")
private Integer id;
#Basic(optional = false)
#Column(name = "host")
private String host;
#Basic(optional = false)
#Column(name = "port")
private int port;
#Basic(optional = false)
#Column(name = "description")
private String description;
#Basic(optional = false)
#Column(name = "active")
private Boolean active;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "game")
private Set<Unit> unitSet;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "game")
private Set<Payment> paymentSet;
public Game() {
}
public Game(Integer id) {
this.id = id;
}
public Game(String host, int port, String description, Boolean active) {
this.host = host;
this.port = port;
this.description = description;
this.active = active;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getHost() {
return host;
}
public void setHost(String host) {
this.host = host;
}
public int getPort() {
return port;
}
public void setPort(int port) {
this.port = port;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Boolean getActive() {
return active;
}
public void setActive(Boolean active) {
this.active = active;
}
public Set<Unit> getUnitSet() {
return unitSet;
}
public void setUnitSet(Set<Unit> unitSet) {
this.unitSet = unitSet;
}
public Set<Payment> getPaymentSet() {
return paymentSet;
}
public void setPaymentSet(Set<Payment> paymentSet) {
this.paymentSet = paymentSet;
}
#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 Game)) {
return false;
}
Game other = (Game) 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.game.database.entity.Game[id=" + id + "]";
}
}
--
package com.game.database.entity;
#Entity
#Table(name = "unit")
#NamedQueries({
#NamedQuery(name = "Unit.findAll", query = "SELECT u FROM Unit u"),
#NamedQuery(name = "Unit.findById", query = "SELECT u FROM Unit u WHERE u.id = :id"),
#NamedQuery(name = "Unit.findByUnitId", query = "SELECT u FROM Unit u WHERE u.unitId = :unitId"),
#NamedQuery(name = "Unit.findByName", query = "SELECT u FROM Unit u WHERE u.name = :name"),
#NamedQuery(name = "Unit.findByRegistrationDate", query = "SELECT u FROM Unit u WHERE u.registrationDate = :registrationDate"),
#NamedQuery(name = "Unit.findByService", query = "SELECT u FROM Unit u WHERE u.service = :service"),
#NamedQuery(name = "Unit.findByNation", query = "SELECT u FROM Unit u WHERE u.nation = :nation") })
public class Unit implements Serializable {
private static final long serialVersionUID = 1L;
#SequenceGenerator(name = "unit_id_seq", sequenceName = "unit_id_seq", allocationSize = 1)
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "unit_id_seq")
#Basic(optional = false)
#Column(name = "id")
private Integer id;
#Basic(optional = false)
#Column(name = "unitId")
private Integer unitId;
#Basic(optional = false)
#Column(name = "name")
private String name;
#Basic(optional = false)
#Column(name = "registrationDate")
#Temporal(TemporalType.TIMESTAMP)
private Date registrationDate;
#Basic(optional = false)
#Column(name = "service")
private String service;
#Basic(optional = false)
#Column(name = "nation")
private String nation;
#JoinColumn(name = "virtue", referencedColumnName = "id")
#ManyToOne(optional = false)
private Virtue virtue;
#JoinColumn(name = "customer", referencedColumnName = "id")
#ManyToOne(optional = false)
private User customer;
#JoinColumn(name = "game", referencedColumnName = "id")
#ManyToOne(optional = false)
private Game game;
public Unit() {
}
public Unit(Integer id) {
this.id = id;
}
public Unit(Integer unitId, String name, Date registrationDate,
String service, String nation) {
this.unitId = unitId;
this.name = name;
this.registrationDate = registrationDate;
this.service = service;
this.nation = nation;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getUnitId() {
return unitId;
}
public void setUnitId(Integer unitId) {
this.unitId = unitId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getRegistrationDate() {
return registrationDate;
}
public void setRegistrationDate(Date registrationDate) {
this.registrationDate = registrationDate;
}
public String getService() {
return service;
}
public void setService(String service) {
this.service = service;
}
public String getNation() {
return nation;
}
public void setNation(String nation) {
this.nation = nation;
}
public Virtue getVirtue() {
return virtue;
}
public void setVirtue(Virtue virtue) {
this.virtue = virtue;
}
public User getUser() {
return customer;
}
public void setUser(User user) {
this.customer = user;
}
public Game getGame() {
return game;
}
public void setGame(Game game) {
Logger.getLogger("org.hibernate").setLevel(Level.FINEST);
this.game = game;
}
#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 Unit)) {
return false;
}
Unit other = (Unit) 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.game.database.entity.Unit[id=" + id + "]";
}
#Transient
private String command;
/**
* Get the value of command
*
* #return the value of command
*/
public String getCommand() {
return command;
}
/**
* Set the value of command
*
* #param command
* new value of command
*/
public void setCommand(String command) {
this.command = command;
}
#Transient
private String rank;
/**
* Get the value of rank
*
* #return the value of rank
*/
public String getRank() {
return rank;
}
/**
* Set the value of rank
*
* #param rank
* new value of rank
*/
public void setRank(String rank) {
this.rank = rank;
}
#Transient
private BigDecimal price;
/**
* Get the value of price
*
* #return the value of price
*/
public BigDecimal getPrice() {
return price;
}
/**
* Set the value of price
*
* #param price
* new value of price
*/
public void setPrice(BigDecimal price) {
this.price = price;
}
}
--
package com.game.database.entity;
#Entity
#Table(name = "customer")
#NamedQueries({
#NamedQuery(name = "User.findAll", query = "SELECT u FROM User u"),
#NamedQuery(name = "User.findById", query = "SELECT u FROM User u WHERE u.id = :id"),
#NamedQuery(name = "User.findByGivenName", query = "SELECT u FROM User u WHERE u.givenName = :givenName"),
#NamedQuery(name = "User.findBySurname", query = "SELECT u FROM User u WHERE u.surname = :surname"),
#NamedQuery(name = "User.findByPhoneNumber", query = "SELECT u FROM User u WHERE u.phoneNumber = :phoneNumber"),
#NamedQuery(name = "User.findBySex", query = "SELECT u FROM User u WHERE u.sex = :sex"),
#NamedQuery(name = "User.findByBirthYear", query = "SELECT u FROM User u WHERE u.birthYear = :birthYear"),
#NamedQuery(name = "User.findByEmail", query = "SELECT u FROM User u WHERE u.email = :email"),
#NamedQuery(name = "User.findByInfoSource", query = "SELECT u FROM User u WHERE u.infoSource = :infoSource"),
#NamedQuery(name = "User.findByOccupation", query = "SELECT u FROM User u WHERE u.occupation = :occupation"),
#NamedQuery(name = "User.findByPassword", query = "SELECT u FROM User u WHERE u.password = :password"),
#NamedQuery(name = "User.findByEmailAndPassword", query = "SELECT u FROM User u WHERE u.password = :password AND u.email = :email") })
public class User implements Serializable {
private static final long serialVersionUID = 1L;
#SequenceGenerator(name = "user_id_seq", sequenceName = "user_id_seq", allocationSize = 1)
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "user_id_seq")
#Basic(optional = false)
#Column(name = "id")
private Integer id;
#Basic(optional = false)
#Column(name = "givenName")
private String givenName;
#Basic(optional = false)
#Column(name = "surname")
private String surname;
#Basic(optional = false)
#Column(name = "phoneNumber")
private String phoneNumber;
#Basic(optional = false)
#Column(name = "sex")
private boolean sex;
#Basic(optional = false)
#Column(name = "birthYear")
#Temporal(TemporalType.DATE)
private Date birthYear;
#Basic(optional = false)
#Column(name = "email")
private String email;
#Basic(optional = false)
#Column(name = "infoSource")
private String infoSource;
#Basic(optional = false)
#Column(name = "occupation")
private String occupation;
#Basic(optional = false)
#Column(name = "password")
private String password;
/**
* The EAGER fetch type ensures that when we get access a unit remotely it
* has had its unit set initialised and populated
*/
#OneToMany(cascade = CascadeType.ALL, mappedBy = "customer", fetch = FetchType.EAGER)
private Set<Unit> unitSet;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "customer", fetch = FetchType.EAGER)
private Set<Payment> paymentSet;
#JoinColumn(name = "address", referencedColumnName = "id")
#ManyToOne(cascade = CascadeType.ALL, optional = false)
private Address address;
public User() {
}
public User(Integer id) {
this.id = id;
}
public User(String givenName, String surname, String phoneNumber,
boolean sex, Date birthYear, String email, String infoSource,
String occupation, String password) {
this.givenName = givenName;
this.surname = surname;
this.phoneNumber = phoneNumber;
this.sex = sex;
this.birthYear = birthYear;
this.email = email;
this.infoSource = infoSource;
this.occupation = occupation;
this.password = password;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getGivenName() {
return givenName;
}
public void setGivenName(String givenName) {
this.givenName = givenName;
}
public String getSurname() {
return surname;
}
public void setSurname(String surname) {
this.surname = surname;
}
public String getPhoneNumber() {
return phoneNumber;
}
public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
public boolean getSex() {
return sex;
}
public void setSex(boolean sex) {
this.sex = sex;
}
public Date getBirthYear() {
return birthYear;
}
public void setBirthYear(Date birthYear) {
this.birthYear = birthYear;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getInfoSource() {
return infoSource;
}
public void setInfoSource(String infoSource) {
this.infoSource = infoSource;
}
public String getOccupation() {
return occupation;
}
public void setOccupation(String occupation) {
this.occupation = occupation;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Set<Unit> getUnitSet() {
return unitSet;
}
public void setUnitSet(Set<Unit> unitSet) {
this.unitSet = unitSet;
}
public Set<Payment> getPaymentSet() {
return paymentSet;
}
public void setPaymentSet(Set<Payment> paymentSet) {
this.paymentSet = paymentSet;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
#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 User)) {
return false;
}
User other = (User) 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.game.database.entity.User[id=" + id + "]";
}
}
--
package com.game.database.entity;
#Entity
#Table(name = "virtue")
#NamedQueries({
#NamedQuery(name = "Virtue.findAll", query = "SELECT v FROM Virtue v"),
#NamedQuery(name = "Virtue.findById", query = "SELECT v FROM Virtue v WHERE v.id = :id"),
#NamedQuery(name = "Virtue.findByName", query = "SELECT v FROM Virtue v WHERE v.name = :name"),
#NamedQuery(name = "Virtue.findByDescription", query = "SELECT v FROM Virtue v WHERE v.description = :description") })
public class Virtue implements Serializable {
private static final long serialVersionUID = 1L;
#SequenceGenerator(name = "virtue_id_seq", sequenceName = "virtue_id_seq", allocationSize = 1)
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "virtue_id_seq")
#Basic(optional = false)
#Column(name = "id")
private Integer id;
#Basic(optional = false)
#Column(name = "name")
private String name;
#Basic(optional = false)
#Column(name = "description")
private String description;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "virtue")
private Set<Unit> unitSet;
public Virtue() {
}
public Virtue(Integer id) {
this.id = id;
}
public Virtue(String name, String description) {
this.name = name;
this.description = description;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Set<Unit> getUnitSet() {
return unitSet;
}
public void setUnitSet(Set<Unit> unitSet) {
this.unitSet = unitSet;
}
#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 Virtue)) {
return false;
}
Virtue other = (Virtue) 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.game.database.entity.Virtue[id=" + id + "]";
}
}
You have a problem with the identity of the Unit objects. You're using in your code a HashSet which relies on equals and hashCode methods which are overridden in your code.
If you run the main method in the code below, you will see that after adding the Unit objects there is only one of them in the set (I reused your original code but I simplified it a bit):
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
public class Unit {
private Integer id;
private Integer unitId;
private String name;
private Date registrationDate;
private String service;
private String nation;
public Unit() {
}
public Unit(Integer id) {
this.id = id;
}
public Unit(Integer unitId, String name, Date registrationDate, String service, String nation) {
this.unitId = unitId;
this.name = name;
this.registrationDate = registrationDate;
this.service = service;
this.nation = nation;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getUnitId() {
return unitId;
}
public void setUnitId(Integer unitId) {
this.unitId = unitId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getRegistrationDate() {
return registrationDate;
}
public void setRegistrationDate(Date registrationDate) {
this.registrationDate = registrationDate;
}
public String getService() {
return service;
}
public void setService(String service) {
this.service = service;
}
public String getNation() {
return nation;
}
public void setNation(String nation) {
this.nation = nation;
}
#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 Unit)) {
return false;
}
Unit other = (Unit) 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.game.database.entity.Unit[id=" + id + "]";
}
public static void main(String... args) {
Unit unit1 = new Unit(1, "Test Unit1", new Date(), "DisService", "MyNation");
Unit unit2 = new Unit(2, "Test Unit2", new Date(), "DisService", "TheirNation");
Unit unit3 = new Unit(3, "Test Unit3", new Date(), "DisService", "TheirNation");
Set unitSet = new HashSet();
unitSet.add(unit2);
unitSet.add(unit1);
unitSet.add(unit3);
System.out.println(unitSet.size());
}
If you comment out the equals() and hashCode() and run the code again you will see three objects in the set.
Your equals() method is based on the id property which is set by hibernate at time the object is being persisted and not at the time of adding to the set. It means that the Unit has always a null id and hashCode = 0 when added to the set. I recommend reading this article: http://community.jboss.org/wiki/EqualsandHashCode
Hope it helps!