ManyToMany relationship update?

ManyToMany relationship update? - java

I'm trying persist a relationship #ManyToMany. I created an association class using #IdClass for association, but doesn't work using persist, works only using merge. I need add others registers but using merge doesn't work because the register is always updated.
I want my table in the database looks like this
id_aluno | id_graduacao | grau | date
1 1 FIRST 2014-08-02
1 1 SECOND 2014-08-02
1 1 THIRD 2014-08-02
Entities
#Entity
#Table(name="aluno")
public class Aluno implements Serializable{
private static final long serialVersionUID = 1L;
#Id #GeneratedValue
private Integer id;
//informacoes gerais
#NotNull
private String nome;
//historico de graduacao
#OneToMany(mappedBy = "aluno")
private List<HistoricoDeGraduacao> listaHistoricoGraduacao;
public Aluno(){}
/** adiciona lista de HistoricoDeGraduacao para aluno */
public void addListaHistoricoGraduacao(HistoricoDeGraduacao hdg){
if(listaHistoricoGraduacao == null){
listaHistoricoGraduacao = new ArrayList<HistoricoDeGraduacao>();
}
listaHistoricoGraduacao.add(hdg);
}
public List<HistoricoDeGraduacao> getListaHistoricoGraduacao() {
return listaHistoricoGraduacao;
}
///gets e sets
#Entity
#Table(name="graduacao")
public class Graduacao implements Serializable{
private static final long serialVersionUID = 1L;
#Id #GeneratedValue
private Integer id;
#NotNull #Column(unique = true)
private String graduacao;
#ElementCollection
#CollectionTable(name="graus_graduacao", joinColumns=#JoinColumn(name="id_graduacao"))
#Column(name="graus")
private List<String> graus;
#OneToMany(mappedBy = "graduacao")
private List<HistoricoDeGraduacao> listaHistoricoGraduacao;
public Graduacao() {
}
/** adiciona historicodegraduacao a graduacao */
public void addHistoricoDeGraduacao(HistoricoDeGraduacao hdg){
if(listaHistoricoGraduacao == null){
listaHistoricoGraduacao = new ArrayList<HistoricoDeGraduacao>();
}
listaHistoricoGraduacao.add(hdg);
}
public List<HistoricoDeGraduacao> getListaHistoricoGraduacao() {
return listaHistoricoGraduacao;
}
//gets e sets
public class HistoricoDeGraduacaoId implements Serializable {
private static final long serialVersionUID = 1L;
private Aluno aluno;
private Graduacao graduacao;
public Aluno getAluno() {
return aluno;
}
public void setAluno(Aluno aluno) {
this.aluno = aluno;
}
public Graduacao getGraduacao() {
return graduacao;
}
public void setGraduacao(Graduacao graduacao) {
this.graduacao = graduacao;
}
#Entity
#IdClass(HistoricoDeGraduacaoId.class)
public class HistoricoDeGraduacao implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#ManyToOne
#JoinColumn(name = "id_aluno")
private Aluno aluno;
#Id
#ManyToOne
#JoinColumn(name="id_graduacao")
private Graduacao graduacao;
private String grau;
#Temporal(TemporalType.DATE)
private Date dataGraduou;
public HistoricoDeGraduacao() {
}
//gets e sets
//persisting
public void insert(){
//doesn't work using persist, works only with merge but record is always updated and not added
em.getTransaction().begin();
Aluno a = new Aluno();
a.setId(1); //aluno have Id
Graduacao g = new Graduacao();
g.setId(1); //graduacao have Id
HistoricoDeGraduacao hdg1 = new HistoricoDeGraduacao();
hdg1.setAluno(a);
hdg1.setGraduacao(g);
hdg1.setDataGraduou(new Date());
hdg1.setGrau("FIRST");
a.addHistoricoDeGraduacao(hdg1);
g.addHistoricoDeGraduacao(hdg1);
em.persist(hdg1);
em.getTransaction().commit();
HistoricoDeGraduacao hdg2 = new HistoricoDeGraduacao();
hdg2.setAluno(a);
hdg2.setGraduacao(g);
hdg2.setDataGraduou(new Date());
hdg2.setGrau("SECOND");
a.addHistoricoDeGraduacao(hdg2);
g.addHistoricoDeGraduacao(hdg2);
em.persist(hdg2);
em.getTransaction().commit();
HistoricoDeGraduacao hdg3 = new HistoricoDeGraduacao();
hdg3.setAluno(a);
hdg3.setGraduacao(g);
hdg3.setDataGraduou(new Date());
hdg3.setGrau("THIRD");
a.addHistoricoDeGraduacao(hdg3);
g.addHistoricoDeGraduacao(hdg3);
em.persist(hdg3);
em.getTransaction().commit();
em.close();
}
Using persist doesn't work, using merge works but the record is always updated and not add new records how I need.
Any idea how to I do this ?

after days searching and trying some solution, finally works !
here how I did
#Entity
#Table(name="aluno")
public class Aluno implements Serializable{
private static final long serialVersionUID = 1L;
#Id #GeneratedValue
private Integer id;
//informacoes gerais
#NotNull
private String nome;
//historico de graduacao
#OneToMany(mappedBy = "aluno", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private List<HistoricoDeGraduacao> listaHistoricoGraduacao;
public Aluno() {
}
public void addListaHistoricoGraduacao(HistoricoDeGraduacao hdg){
if(listaHistoricoGraduacao == null){
listaHistoricoGraduacao = new ArrayList<HistoricoDeGraduacao>();
}
listaHistoricoGraduacao.add(hdg);
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public List<HistoricoDeGraduacao> getListaHistoricoGraduacao() {
return listaHistoricoGraduacao;
}
public void setListaHistoricoGraduacao(List<HistoricoDeGraduacao> listaHistoricoGraduacao) {
this.listaHistoricoGraduacao = listaHistoricoGraduacao;
}
#Override
public int hashCode() {
int hash = 7;
return hash;
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Aluno other = (Aluno) obj;
return true;
}
}
#Entity
#Table(name="graduacao")
public class Graduacao implements Serializable{
private static final long serialVersionUID = 1L;
#Id #GeneratedValue
private Integer id;
#NotNull #Column(unique = true)
private String graduacao;
#ElementCollection
#CollectionTable(name="graus_graduacao", joinColumns=#JoinColumn(name="id_graduacao"))
#Column(name="graus")
private List<String> graus;
#OneToMany(mappedBy = "graduacao", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private List<HistoricoDeGraduacao> listaHistoricoGraduacao;
public Graduacao() {
}
public Graduacao(Integer id, String graduacao, List<String> graus) {
this.id = id;
this.graduacao = graduacao;
this.graus = graus;
}
/** adiciona historicodegraduacao a graduacao */
public void addHistoricoDeGraduacao(HistoricoDeGraduacao hdg){
if(listaHistoricoGraduacao == null){
listaHistoricoGraduacao = new ArrayList<HistoricoDeGraduacao>();
}
listaHistoricoGraduacao.add(hdg);
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getGraduacao() {
return graduacao;
}
public void setGraduacao(String graduacao) {
this.graduacao = graduacao;
}
public List<String> getGraus() {
return graus;
}
public void setGraus(List<String> graus) {
this.graus = graus;
}
public List<HistoricoDeGraduacao> getListaHistoricoGraduacao() {
return listaHistoricoGraduacao;
}
public void setListaHistoricoGraduacao(List<HistoricoDeGraduacao> listaHistoricoGraduacao) {
this.listaHistoricoGraduacao = listaHistoricoGraduacao;
}
public String toString(){
return graduacao;
}
}
#Embeddable
public class HistoricoDeGraduacaoId implements Serializable {
private static final long serialVersionUID = 1L;
#JoinColumn(name="EMP_ID")
private Integer id;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
#Override
public boolean equals(Object obj) {
return super.equals(obj); //To change body of generated methods, choose Tools | Templates.
}
#Override
public int hashCode() {
return super.hashCode(); //To change body of generated methods, choose Tools | Templates.
}
}
#Entity
public class HistoricoDeGraduacao implements Serializable {
private static final long serialVersionUID = 1L;
#EmbeddedId
HistoricoDeGraduacaoId pk;
#ManyToOne(cascade = CascadeType.ALL)
#JoinColumn(name = "id_aluno")
private Aluno aluno;
#ManyToOne(cascade = CascadeType.ALL)
#JoinColumn(name="id_graduacao")
private Graduacao graduacao;
private String grau;
#Temporal(TemporalType.DATE)
private Date dataGraduou;
public HistoricoDeGraduacao() {
}
public void begin(){
//instancia pk
pk = new HistoricoDeGraduacaoId();
//aqui insiro o id
pk.setId(new HistoricoDeGraduacaoDAO().getIndex());
}
public HistoricoDeGraduacaoId getPk() {
return pk;
}
public void setPk(HistoricoDeGraduacaoId pk) {
this.pk = pk;
}
public Aluno getAluno() {
return aluno;
}
public void setAluno(Aluno aluno) {
this.aluno = aluno;
}
public Graduacao getGraduacao() {
return graduacao;
}
public void setGraduacao(Graduacao graduacao) {
this.graduacao = graduacao;
}
public String getGrau() {
return grau;
}
public void setGrau(String grau) {
this.grau = grau;
}
public Date getDataGraduou() {
return dataGraduou;
}
public void setDataGraduou(Date dataGraduou) {
this.dataGraduou = dataGraduou;
}
#Override
public int hashCode() {
int hash = 3;
hash = 59 * hash + Objects.hashCode(this.aluno);
hash = 59 * hash + Objects.hashCode(this.graduacao);
return hash;
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final HistoricoDeGraduacao other = (HistoricoDeGraduacao) obj;
if (!Objects.equals(this.aluno, other.aluno)) {
return false;
}
if (!Objects.equals(this.graduacao, other.graduacao)) {
return false;
}
return true;
}
}
//aqui meu jframe com seus componentes, pegando valores montando tudo para ser salvo
historico.setDataGraduou(jdp_dataGraduou.getDate());
historico.setGrau(jl_graus.getSelectedValue().toString());
//pega graduacao do jcombobox
Graduacao g = (Graduacao)cbx_graduacao.getSelectedItem();
historico.setGraduacao(g);
//bean aluno
historico.setAluno(bean);
//add a listas
bean.addListaHistoricoGraduacao(historico);
g.addHistoricoDeGraduacao(historico);
//inicia instancia de pk e insere o proximo id
historico.begin();
//salva tudo
new HistoricoDeGraduacaoDAO().update(historico);
//aqui meu DAO
public class HistoricoDeGraduacaoDAO {
private EntityManager em;
public HistoricoDeGraduacaoDAO(){
em = Persistencia.getEntityManager();
}
/** pega o ultimo valor da tabela HistoricoDeGraduacao e adiciona + 1 para o proximo indice */
public Integer getIndex(){
int count = 0;
Query query = em.createQuery("SELECT MAX(hdg.pk.id) FROM HistoricoDeGraduacao hdg");
if(query.getSingleResult() == null){
++count;
}else{
count = (int)query.getSingleResult() + 1;
}
return count;
}
/** executa update */
public void update(HistoricoDeGraduacao historico){
try{
em.getTransaction().begin();
em.merge(historico);
em.getTransaction().commit();
}catch(PersistenceException e){
JOptionPane.showMessageDialog(null, e.getMessage(), "Erro", JOptionPane.ERROR_MESSAGE);
}finally{
em.close();
}
}
}
And result is:

Related

How to use detailed SQL query on Srpingboot using #Query?

I'm having some trouble to find out how to use an specific query on Springboot
SELECT tb_excursao.fk_cliente, tb_cliente.nome, tb_cliente.documento, tb_cliente.org_emissor, tb_cliente.data_nascimento, tb_excursao.fk_viagem, tb_viagens.destino, tb_viagens.data_viagem
FROM ((tb_excursao
INNER JOIN tb_cliente ON fk_cliente = tb_cliente.id_cliente)
INNER JOIN tb_viagens ON fk_viagem = tb_viagens.id_viagem))
This works fine on MySQL, but the examples that I saw it's always something like "SELECT u FROM User u", and as a beginner I can't relate using columns from different tables using #Query.
The models are below:
Cliente.java
#Entity
#Table(name = "tb_cliente")
public class Cliente {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private long idCliente;
#NotBlank
#Size(min = 3)
private String nome;
#NotNull
private String documento;
#NotNull
private String orgEmissor;
#NotBlank
#JsonFormat(pattern = "dd/MM/yyyy")
private Date dataNascimento;
#Temporal(TemporalType.TIMESTAMP)
private Date dataCadastro = new java.sql.Date(System.currentTimeMillis());
#OneToMany(mappedBy = "fkCliente")
Set<Excursao> excursao;
public long getIdCliente() {
return idCliente;
}
public void setIdCliente(long idCliente) {
this.idCliente = idCliente;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getDocumento() {
return documento;
}
public void setDocumento(String documento) {
this.documento = documento;
}
public String getOrgEmissor() {
return orgEmissor;
}
public void setOrgEmissor(String orgEmissor) {
this.orgEmissor = orgEmissor;
}
public Date getDataNascimento() {
return dataNascimento;
}
public void setDataNascimento(Date dataNascimento) {
this.dataNascimento = dataNascimento;
}
public Date getDataCadastro() {
return dataCadastro;
}
public void setDataCadastro(Date dataCadastro) {
this.dataCadastro = dataCadastro;
}
}
Viagem.java
#Entity
#Table(name = "tb_viagens")
public class Viagem {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private long idViagem;
#NotBlank
private String destino;
#NotBlank
#JsonFormat(pattern = "dd/MM/yyyy")
private Date dataViagem;
#NotBlank
private int quantidadeMaxPessoas;
#OneToMany(mappedBy = "fkViagem")
private Set<Excursao> excursao;
public long getIdViagem() {
return idViagem;
}
public void setIdViagem(long idViagem) {
this.idViagem = idViagem;
}
public String getDestino() {
return destino;
}
public void setDestino(String destino) {
this.destino = destino;
}
public Date getDataViagem() {
return dataViagem;
}
public void setDataViagem(Date dataViagem) {
this.dataViagem = dataViagem;
}
public int getQuantidadeMaxPessoas() {
return quantidadeMaxPessoas;
}
public void setQuantidadeMaxPessoas(int quantidadeMaxPessoas) {
this.quantidadeMaxPessoas = quantidadeMaxPessoas;
}
}
ExcursaoEmbeddable.java
#Embeddable
public class ExcursaoEmb implements Serializable {
#Column(name = "fkCliente")
private Long fkCliente;
#Column(name = "fkViagem")
private Long fkViagem;
public Long getFkCliente() {
return this.fkCliente;
}
public void setFkCliente(Long fkCliente) {
this.fkCliente = fkCliente;
}
public Long getFkViagem() {
return this.fkViagem;
}
public void setFkViagem(Long fkViagem) {
this.fkViagem = fkViagem;
}
}
Excursao.java This is the table that the query in the beginning of the post goes
#Entity
#Table(name = "tb_excursao")
public class Excursao {
#EmbeddedId
ExcursaoEmb idExcursao;
#ManyToOne
#JoinColumn(name = "id_cliente")
private Cliente fkCliente;
#ManyToOne
#JoinColumn(name = "id_viagem")
private Viagem fkViagem;
#NotNull
private boolean primeiraParcela;
#NotNull
private boolean segundaParcela;
private boolean terceiraParcela;
public ExcursaoEmb getIdExcursao() {
return this.idExcursao;
}
public void setIdExcursao(ExcursaoEmb idExcursao) {
this.idExcursao = idExcursao;
}
public Cliente getFkCliente() {
return this.fkCliente;
}
public void setFkCliente(Cliente fkCliente) {
this.fkCliente = fkCliente;
}
public Viagem getFkViagem() {
return this.fkViagem;
}
public void setFkViagem(Viagem fkViagem) {
this.fkViagem = fkViagem;
}
public boolean isPrimeiraParcela() {
return this.primeiraParcela;
}
public boolean getPrimeiraParcela() {
return this.primeiraParcela;
}
public void setPrimeiraParcela(boolean primeiraParcela) {
this.primeiraParcela = primeiraParcela;
}
public boolean isSegundaParcela() {
return this.segundaParcela;
}
public boolean getSegundaParcela() {
return this.segundaParcela;
}
public void setSegundaParcela(boolean segundaParcela) {
this.segundaParcela = segundaParcela;
}
public boolean isTerceiraParcela() {
return this.terceiraParcela;
}
public boolean getTerceiraParcela() {
return this.terceiraParcela;
}
public void setTerceiraParcela(boolean terceiraParcela) {
this.terceiraParcela = terceiraParcela;
}
}

Cannot delete or update a parent row a foreign key constraint fails JPA Spring Boot

I have a request table related to 2 tables where I save the request number according to the type of request that can be a request for water analysis and request for soil analysis, but when I try to delete or update the request table I get the error
Cannot delete or update a parent row: a foreign key constraint fails
My code that implements the relationships is the following is the following
//class for request
#Entity
#Table(name = "solicitud")
public class Solicitud implements Serializable{
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;
//#Column(unique=true)
//private String codigo;
#ManyToOne(fetch = FetchType.LAZY)
private Estado estado;
#DateTimeFormat(pattern = "yyyy-MM-dd")
#Temporal(TemporalType.DATE)
#NotNull
#Column(name="fecha")
private Date fecha;
#JsonIgnore
#ManyToOne(fetch = FetchType.LAZY)
private Usuario usuario;
#JsonIgnore
#ManyToOne(fetch = FetchType.LAZY)
private Usuario teclab;
#JsonIgnore
#ManyToOne(fetch = FetchType.LAZY)
private TipoMuestra tmuestra;
//#Min(value = 0L, message = "Debe ingresar un valor positivo")
//#Pattern(regexp = "[\\s]*[0-9]*[1-9]+",message="msg")
#NotNull
private Integer numMuestras;
int year = 0;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Estado getEstado() {
return estado;
}
public void setEstado(Estado estado) {
this.estado = estado;
}
public Date getFecha() {
return fecha;
}
public void setFecha(Date fecha) {
this.fecha = fecha;
}
public Usuario getUsuario() {
return usuario;
}
public void setUsuario(Usuario usuario) {
this.usuario = usuario;
}
public TipoMuestra getTmuestra() {
return tmuestra;
}
public void setTmuestra(TipoMuestra tmuestra) {
this.tmuestra = tmuestra;
}
public Integer getNumMuestras() {
return numMuestras;
}
public void setNumMuestras(Integer numMuestras) {
this.numMuestras = numMuestras;
}
public Usuario getTeclab() {
return teclab;
}
public void setTeclab(Usuario teclab) {
this.teclab = teclab;
}
/*#PostPersist
public void generateCode() {
CodigoAgua agua=new CodigoAgua();
agua.setSolicitud(this);
agua.generateCode();
}*/
/**
*
*/
private static final long serialVersionUID = 1L;
}
//class for save number for type request water analysis
#Entity
#Table(name = "cagua")
public class CodigoAgua implements Serializable{
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(unique=true)
private String codigo;
#OneToOne(fetch=FetchType.LAZY, cascade = CascadeType.ALL)
#JoinColumn(name="solicitud_id")
private Solicitud solicitud;
int year = 0;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCodigo() {
return codigo;
}
public void setCodigo(String codigo) {
this.codigo = codigo;
}
public Solicitud getSolicitud() {
return solicitud;
}
public void setSolicitud(Solicitud solicitud) {
this.solicitud = solicitud;
}
#PostPersist
public void generateCode() {
Date date = new Date();
LocalDate localDate = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
year = localDate.getYear();
this.codigo=year +" - "+id+" - A";
System.out.println("Codigo solicitud creado"+id+this.getSolicitud().getId());
}
/**
*
*/
private static final long serialVersionUID = 1L;
}
//class for save number for type request soil analysis
#Entity
#Table(name = "csuelo")
public class CodigoSuelo implements Serializable{
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(unique=true)
private String codigo;
#OneToOne(fetch=FetchType.LAZY, cascade = CascadeType.ALL)
#JoinColumn(name="solicitud_id")
private Solicitud solicitud;
int year = 0;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCodigo() {
return codigo;
}
public void setCodigo(String codigo) {
this.codigo = codigo;
}
public Solicitud getSolicitud() {
return solicitud;
}
public void setSolicitud(Solicitud solicitud) {
this.solicitud = solicitud;
}
#PostPersist
public void generateCode() {
Date date = new Date();
LocalDate localDate = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
year = localDate.getYear();
this.codigo=year +" - "+id+" - S";
System.out.println("Codigo solicitud creado"+id+this.getSolicitud().getId());
}
/**
*
*/
private static final long serialVersionUID = 1L;
}

This message indicates that you want to delete a row from table1, while its primary key is present as a foreign key in table2.
To delete a record from table1, you must delete all the lines that refer to it in the other tables in order to be able to delete this record.
I hope I've helped you

Trouble with JPA

I have this model with 2 tables, "Cuenta" and "Movimien". When the merge () method of the Movimien table is called, it also attempts to insert into the Cuenta table. I am not sure if relationships are right. Could someone give me a hand with this?
Below, the model of the Movimien table, which when doing the update triggers the insert in the Cuenta table:
#Entity
#Table(name = "movimien")
public class Movimien implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
private Date fecha;
private short cuentaid;
private float importe;
private String concepto;
#JoinColumn(name = "cuentaid", insertable = false, updatable = false)
#ManyToOne
private Cuenta cuenta;
public Movimien() {
this.cuenta = new Cuenta();
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Date getFecha() {
return fecha;
}
public void setFecha(Date fecha) {
this.fecha = fecha;
}
public short getCuentaid() {
return cuentaid;
}
public void setCuentaid(short cuentaid) {
this.cuentaid = cuentaid;
}
public float getImporte() {
return importe;
}
public void setImporte(float importe) {
this.importe = importe;
}
public String getConcepto() {
return concepto;
}
public void setConcepto(String concepto) {
this.concepto = concepto;
}
public Cuenta getCuenta() {
return cuenta;
}
public void setCuenta(Cuenta cuenta) {
this.cuenta = cuenta;
}
#Override
public int hashCode() {
int hash = 7;
hash = 53 * hash + this.id;
return hash;
}
#Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Movimien other = (Movimien) obj;
if (this.id != other.id) {
return false;
}
return true;
}}
And the model of the Cuenta table, to which the insert is triggered when an update is made in the Movimien table:
#Entity
#Table(name = "cuentas")
public class Cuenta implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
private String nombre;
private short tipo;
#OneToMany(mappedBy="cuenta")
private List<Movimien> movimien;
public Cuenta() {
this.nombre="";
this.tipo = 0;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getNombre() {
return nombre;
}
public void setNombre(String nombre) {
this.nombre = nombre;
}
public short getTipo() {
return tipo;
}
public void setTipo(short tipo) {
this.tipo = tipo;
}
#Override
public int hashCode() {
int hash = 7;
hash = 97 * hash + this.id;
return hash;
}
#Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Cuenta other = (Cuenta) obj;
if (this.id != other.id) {
return false;
}
return true;
}}
Any idea what may be the reason for this behavior?,
thanks in advance!
Fernando
Persitence.xml
Database
Log of update and insert

How to find intersection of many to many entities directly by JQL?

These are my model classes:
Film.java
#Entity
public class Film {
private Integer id;
private String title;
private List<FilmActor> filmActors;
#OneToMany(mappedBy = "film")
public List<FilmActor> getFilmActors() {
return filmActors;
}
public void setFilmActors(List<FilmActor> filmActors) {
this.filmActors = filmActors;
}
}
Actor.java
#Entity
public class Actor {
private Integer id;
private String firstname;
private String lastname;
private List<FilmActor> filmActors;
#OneToMany(mappedBy = "actor")
public List<FilmActor> getFilmActors() {
return filmActors;
}
public void setFilmActors(List<FilmActor> filmActors) {
this.filmActors = filmActors;
}
}
And this is the Join Table Entity:
#Entity
#Table(name = "film_actor")
public class FilmActor {
private FilmActorPK id;
private Film film;
private Actor actor;
private Timestamp lastUpdate;
#EmbeddedId
public FilmActorPK getId() {
return id;
}
public void setId(FilmActorPK id) {
this.id = id;
}
#ManyToOne
#MapsId("film")
#JoinColumn(name = "film_id")
public Film getFilm() {
return film;
}
public void setFilm(Film film) {
this.film = film;
}
#ManyToOne
#MapsId("actor")
#JoinColumn(name = "actor_id")
public Actor getActor() {
return actor;
}
public void setActor(Actor actor) {
this.actor = actor;
}
#Column(name = "last_update")
public Timestamp getLastUpdate() {
return lastUpdate;
}
public void setLastUpdate(Timestamp lastUpdate) {
this.lastUpdate = lastUpdate;
}
}
and the Primary Key class:
#Embeddable
public class FilmActorPK implements Serializable {
private int actorId;
private int filmId;
#Column(name = "actor_id")
public int getActorId() {
return actorId;
}
public void setActorId(int actorId) {
this.actorId = actorId;
}
#Column(name = "film_id")
public int getFilmId() {
return filmId;
}
public void setFilmId(int filmId) {
this.filmId = filmId;
}
}
So I want to find films where 2 given actors acts. This is what I have:
#Override
public Collection<Film> filmsActorsTogether(Actor a, Actor b) {
final List<Film> filmsOfActorA = filmsOfActor(a);
final List<Film> filmsOfActorB = filmsOfActor(b);
final Collection<Film> intersection = CollectionUtils.intersection(filmsOfActorA, filmsOfActorB);
return intersection;
}
#Override
public List<Film> filmsOfActor(Actor actor) {
final EntityManager entityManager = persistenceUtil.getEntityManager();
final Actor persistentActor = entityManager.find(Actor.class, actor.getId());
final ArrayList<Film> films = new ArrayList<Film>();
for (FilmActor filmActor : persistentActor.getFilmActors()) {
films.add(filmActor.getFilm());
}
entityManager.close();
return films;
}
Is there any way to achieve this without fetching ALL films of 2 actors, and using filtering in memory? How do I get the Films directly from the DB with JQL?

Maybe there is something more elegant, but the following query should work:
select f from Film f where
(select count(fa.id) from FilmActor fa
where fa.film = f
and (fa.actor = :actor1 or fa.actor = :actor2)) = 2
Side note: your PK class should have a correct equals() and hashCode() methods

com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError)

I'm trying implement a rest service. I have created my entitys and daos, and when use this everthyng works fine.
But when I trye expose the information in rest json, the infinite recursion error occur.
I have read many topic about this error, but not is so clear for me.
I'm have tried so many alternatives that is hard talk about each.
When I debug my code, I see that the data from dao is correctly, the problem occur when I trie use json. Whe I use jsf page works fine.
I have tried use Gson and return String in my rest method, but stackoverflow error occur to.
Bellow I post my implememtation (all), because a dont have idea about the problem.
I using wildfly server...
Thanks in advance
Model's
#Entity
#Table(name="usertable")
#NamedQuery(name="UserModel.findAll", query="SELECT u FROM UserModel u")
#XmlRootElement
public class UserModel implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(unique=true, nullable=false)
private String USId;
#Temporal(TemporalType.DATE)
#Column(nullable=false)
private Date userNascimento;
#Column(nullable=false, length=45)
private String USMail;
#Column(nullable=false, length=150)
private String USName;
#Column(nullable=false, length=45)
private String USNick;
#Column(nullable=false, length=45)
private String USPassword;
//bi-directional many-to-one association to UserAddressModel
#OneToMany(fetch = FetchType.EAGER, mappedBy="usertable")
private List<UserAddressModel> listAddressModel;
//bi-directional many-to-one association to UserFoneModel
#OneToMany(fetch = FetchType.EAGER, mappedBy="usertable")
private List<UserFoneModel> listFoneModel;
public UserModel() {
}
public String getUSId() {
return this.USId;
}
public void setUSId(String USId) {
this.USId = USId;
}
public Date getUserNascimento() {
return this.userNascimento;
}
public void setUserNascimento(Date userNascimento) {
this.userNascimento = userNascimento;
}
public String getUSMail() {
return this.USMail;
}
public void setUSMail(String USMail) {
this.USMail = USMail;
}
public String getUSName() {
return this.USName;
}
public void setUSName(String USName) {
this.USName = USName;
}
public String getUSNick() {
return this.USNick;
}
public void setUSNick(String USNick) {
this.USNick = USNick;
}
public String getUSPassword() {
return this.USPassword;
}
public void setUSPassword(String USPassword) {
this.USPassword = USPassword;
}
public List<UserAddressModel> getUseraddresstables() {
return this.listAddressModel;
}
public void setUseraddresstables(List<UserAddressModel> useraddresstables) {
this.listAddressModel = useraddresstables;
}
public UserAddressModel addUseraddresstable(UserAddressModel useraddresstable) {
getUseraddresstables().add(useraddresstable);
useraddresstable.setUsertable(this);
return useraddresstable;
}
public UserAddressModel removeUseraddresstable(UserAddressModel useraddresstable) {
getUseraddresstables().remove(useraddresstable);
useraddresstable.setUsertable(null);
return useraddresstable;
}
public List<UserFoneModel> getUserfonetables() {
return this.listFoneModel;
}
public void setUserfonetables(List<UserFoneModel> userfonetables) {
this.listFoneModel = userfonetables;
}
public UserFoneModel addUserfonetable(UserFoneModel userfonetable) {
getUserfonetables().add(userfonetable);
userfonetable.setUsertable(this);
return userfonetable;
}
public UserFoneModel removeUserfonetable(UserFoneModel userfonetable) {
getUserfonetables().remove(userfonetable);
userfonetable.setUsertable(null);
return userfonetable;
}
}
#Entity
#Table(name="userfonetable")
#NamedQuery(name="UserFoneModel.findAll", query="SELECT u FROM UserFoneModel u")
public class UserFoneModel implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(unique=true, nullable=false)
private String UFId;
#Column(nullable=false)
private short UFDdd;
#Column(nullable=false)
private int UFFone;
//bi-directional many-to-one association to UserModel
#ManyToOne
#JoinColumn(name="UFUserID", nullable=false)
private UserModel usertable;
//bi-directional many-to-one association to OperadorasModel
#ManyToOne
#JoinColumn(name="UFOperadoraID", nullable=false)
private OperadorasModel operadorastable;
//bi-directional many-to-one association to TiposFoneModel
#ManyToOne
#JoinColumn(name="UFTipoTelefone", nullable=false)
private TiposFoneModel tbTipostelefone;
public UserFoneModel() {
}
public String getUFId() {
return this.UFId;
}
public void setUFId(String UFId) {
this.UFId = UFId;
}
public short getUFDdd() {
return this.UFDdd;
}
public void setUFDdd(short UFDdd) {
this.UFDdd = UFDdd;
}
public int getUFFone() {
return this.UFFone;
}
public void setUFFone(int UFFone) {
this.UFFone = UFFone;
}
public UserModel getUsertable() {
return this.usertable;
}
public void setUsertable(UserModel usertable) {
this.usertable = usertable;
}
public OperadorasModel getOperadorastable() {
return this.operadorastable;
}
public void setOperadorastable(OperadorasModel operadorastable) {
this.operadorastable = operadorastable;
}
public TiposFoneModel getTbTipostelefone() {
return this.tbTipostelefone;
}
public void setTbTipostelefone(TiposFoneModel tbTipostelefone) {
this.tbTipostelefone = tbTipostelefone;
}
}
#Entity
#Table(name="useraddresstable")
#NamedQuery(name="UserAddressModel.findAll", query="SELECT u FROM UserAddressModel u")
public class UserAddressModel implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(unique=true, nullable=false)
private String UAId;
#Column(nullable=false, length=100)
private String UABairro;
#Column(nullable=false, length=100)
private String UACidade;
#Column(length=45)
private String UAComplemento;
#Column(nullable=false, length=2)
private String UAEstado;
#Column(nullable=false)
private int UANumero;
#Column(length=100)
private String UARua;
//bi-directional many-to-one association to UserModel
#ManyToOne
#JoinColumn(name="UAUserID", nullable=false)
private UserModel usertable;
public UserAddressModel() {
}
public String getUAId() {
return this.UAId;
}
public void setUAId(String UAId) {
this.UAId = UAId;
}
public String getUABairro() {
return this.UABairro;
}
public void setUABairro(String UABairro) {
this.UABairro = UABairro;
}
public String getUACidade() {
return this.UACidade;
}
public void setUACidade(String UACidade) {
this.UACidade = UACidade;
}
public String getUAComplemento() {
return this.UAComplemento;
}
public void setUAComplemento(String UAComplemento) {
this.UAComplemento = UAComplemento;
}
public String getUAEstado() {
return this.UAEstado;
}
public void setUAEstado(String UAEstado) {
this.UAEstado = UAEstado;
}
public int getUANumero() {
return this.UANumero;
}
public void setUANumero(int UANumero) {
this.UANumero = UANumero;
}
public String getUARua() {
return this.UARua;
}
public void setUARua(String UARua) {
this.UARua = UARua;
}
public UserModel getUsertable() {
return this.usertable;
}
public void setUsertable(UserModel usertable) {
this.usertable = usertable;
}
}
#Entity
#Table(name="tb_tipostelefone")
#NamedQuery(name="TiposFoneModel.findAll", query="SELECT t FROM TiposFoneModel t")
public class TiposFoneModel implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(unique=true, nullable=false)
private short TFId;
#Column(nullable=false, length=45)
private String TFDescricao;
//bi-directional many-to-one association to UserFoneModel
#OneToMany(fetch = FetchType.EAGER, mappedBy="tbTipostelefone")
private List<UserFoneModel> listFoneModel;
public TiposFoneModel() {
}
public short getTFId() {
return this.TFId;
}
public void setTFId(short TFId) {
this.TFId = TFId;
}
public String getTFDescricao() {
return this.TFDescricao;
}
public void setTFDescricao(String TFDescricao) {
this.TFDescricao = TFDescricao;
}
public List<UserFoneModel> getUserfonetables() {
return this.listFoneModel;
}
public void setUserfonetables(List<UserFoneModel> userfonetables) {
this.listFoneModel = userfonetables;
}
public UserFoneModel addUserfonetable(UserFoneModel userfonetable) {
getUserfonetables().add(userfonetable);
userfonetable.setTbTipostelefone(this);
return userfonetable;
}
public UserFoneModel removeUserfonetable(UserFoneModel userfonetable) {
getUserfonetables().remove(userfonetable);
userfonetable.setTbTipostelefone(null);
return userfonetable;
}
}
#Entity
#Table(name="operadorastable")
#NamedQuery(name="OperadorasModel.findAll", query="SELECT o FROM OperadorasModel o")
public class OperadorasModel implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(unique=true, nullable=false)
private short OPCodigo;
#Column(nullable=false, length=100)
private String opNome;
//bi-directional many-to-one association to UserFoneModel
#OneToMany(fetch = FetchType.EAGER, mappedBy="operadorastable")
private List<UserFoneModel> listFoneModel;
public OperadorasModel() {
}
public short getOPCodigo() {
return this.OPCodigo;
}
public void setOPCodigo(short OPCodigo) {
this.OPCodigo = OPCodigo;
}
public String getOpNome() {
return this.opNome;
}
public void setOpNome(String opNome) {
this.opNome = opNome;
}
public List<UserFoneModel> getUserfonetables() {
return this.listFoneModel;
}
public void setUserfonetables(List<UserFoneModel> userfonetables) {
this.listFoneModel = userfonetables;
}
public UserFoneModel addUserfonetable(UserFoneModel userfonetable) {
getUserfonetables().add(userfonetable);
userfonetable.setOperadorastable(this);
return userfonetable;
}
public UserFoneModel removeUserfonetable(UserFoneModel userfonetable) {
getUserfonetables().remove(userfonetable);
userfonetable.setOperadorastable(null);
return userfonetable;
}
}
DAO
#Stateless
#LocalBean
public class UserDao {
/**
* Default constructor.
*/
#PersistenceContext
EntityManager em;
public UserDao() {
// TODO Auto-generated constructor stub
}
public List<UserModel> listAll()
{
CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery<UserModel> cq = cb.createQuery(UserModel.class);
Root<UserModel> rootEntry = cq.from(UserModel.class);
CriteriaQuery<UserModel> all = cq.select(rootEntry);
TypedQuery<UserModel> allQuery = em.createQuery(all);
List<UserModel> listU = allQuery.getResultList();
return listU;
/*
Query query = em.createQuery("SELECT u FROM UserModel u");
return query.getResultList();
*/
}
}
My Rest
import java.util.List;
import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import br.com.avera.dao.UserDao;
import br.com.avera.model.UserAddressModel;
import br.com.avera.model.UserFoneModel;
import br.com.avera.model.UserModel;
#Path("/users")
public class UserRest {
#Inject
UserDao userDao;
#GET
#Produces(MediaType.APPLICATION_JSON)
public UserModel getUser()
{
List<UserModel> userModelList = userDao.listAll();
UserModel userModel = userModelList.get(0);
List<UserFoneModel> lFone = userModel.getUserfonetables();
for (UserFoneModel userFoneModel : lFone) {
System.out.println(userFoneModel.getUFDdd());
System.out.println(userFoneModel.getUFFone());
}
System.out.println("OOOOOO");
List<UserAddressModel> lAddressModels = userModel.getUseraddresstables();
for (UserAddressModel userAddressModel : lAddressModels) {
System.out.println(userAddressModel.getUACidade());
System.out.println(userAddressModel.getUAEstado());
}
return userModel;
}
}

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