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POError perisiting manyToOne relationship that can be null (org.hibernate.TransientObjectException)
 

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  1. POError perisiting manyToOne relationship that can be null (org.hibernate.TransientObjectException)
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    <p>i'm getting exception when i try to persist object Municipio. Municipio has manyTone Relationship to Provincia and another manyToOne relationship to Sector. Provincia can't be null but Sector can be null. I don't know how to allow that Sector can be null because when I try to save object Municipio an Exception is thrown.</p> <pre><code>java.lang.IllegalStateException: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: es.caib.biocides.persistence.Municipio.sector -&gt; es.caib.biocides.persistence.Sector at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:611) at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:513) </code></pre> <p>Municipio</p> <pre><code>/** * The persistent class for the BCD_MUNICIPIO database table. * */ @Entity @Table(name="BCD_MUNICIPIO") public class Municipio implements Serializable { @Id @SequenceGenerator(name="BCD_MUNICIPIO_MUNCODIGO_GENERATOR", sequenceName="BCD_MUN_SEQ") @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="BCD_MUNICIPIO_MUNCODIGO_GENERATOR") @Column(name="MUN_CODIGO") private Long munCodigo; @Column(name="MUN_NOMBRE") private String munNombre; //bi-directional many-to-one association to Provincia @ManyToOne(fetch=FetchType.LAZY) @JoinColumn(name="MUN_CODPRV") private Provincia provincia; //bi-directional many-to-one association to Sector @ManyToOne(fetch=FetchType.LAZY, optional=true) @JoinColumn(name="MUN_CODSEC", nullable=true) private Sector sector; public Municipio() { } public Long getMunCodigo() { return this.munCodigo; } public void setMunCodigo(Long munCodigo) { this.munCodigo = munCodigo; } public String getMunNombre() { return this.munNombre; } public void setMunNombre(String munNombre) { this.munNombre = munNombre; } public Provincia getProvincia() { return this.provincia; } public void setProvincia(Provincia provincia) { this.provincia = provincia; } public Sector getSector() { return this.sector; } public void setSector(Sector sector) { this.sector = sector; } } </code></pre> <p>Sector</p> <pre><code>/** * The persistent class for the BCD_SECTOR database table. * */ @Entity @Table(name="BCD_SECTOR") public class Sector implements Serializable { private static final long serialVersionUID = 1L; @Id @SequenceGenerator(name="BCD_SECTOR_SECCODIGO_GENERATOR", sequenceName="BCD_SEC_SEQ") @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="BCD_SECTOR_SECCODIGO_GENERATOR") @Column(name="SEC_CODIGO") private Long secCodigo; @Column(name="SEC_NOMBRE") private String secNombre; //bi-directional many-to-one association to Municipio @OneToMany(mappedBy="sector") private List&lt;Municipio&gt; municipios; public Sector() { } public Long getSecCodigo() { return this.secCodigo; } public void setSecCodigo(Long secCodigo) { this.secCodigo = secCodigo; } public String getSecNombre() { return this.secNombre; } public void setSecNombre(String secNombre) { this.secNombre = secNombre; } public List&lt;Municipio&gt; getMunicipios() { return this.municipios; } public void setMunicipios(List&lt;Municipio&gt; municipios) { this.municipios = municipios; } } </code></pre>
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    1. USjagr
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    1. COshow ur save/modify code
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      1. POError perisiting manyToOne relationship that can be null (org.hibernate.TransientObjectException)
      1. USSajan Chandran
    2. COThe problem is with transient state not the `null` I think.
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      1. USAdam Arold
 

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