保存對象時出現以下錯誤。不過,類似的配置在我的項目中適用於其他模型對象。任何幫助將不勝感激。序列生成器被忽略
@Entity
@Table(name = "ENROLLMENT_GROUP_MEMBERSHIPS", schema = "LEAD_ROUTING")
public class EnrollmentGroupMembership implements Serializable, Comparable,Auditable {
@javax.persistence.SequenceGenerator(name = "enrollmentGroupMemID", sequenceName = "S_ENROLLMENT_GROUP_MEMBERSHIPS")
@Id
@GeneratedValue(strategy = GenerationType.AUTO, generator = "enrollmentGroupMemID")
@Column(name = "ID")
private Long id;
@ManyToOne()
@JoinColumn(name = "TIER_WEIGHT_OID", referencedColumnName = "OID", updatable = false, insertable = false)
private TierWeight tierWeight;
public EnrollmentGroupMembership() {
}
}
代碼:
@Entity
@Table(name = "TIER_WEIGHT", schema = "LEAD_ROUTING")
public class TierWeight implements Serializable, Auditable {
@SequenceGenerator(name = "tierSequence",sequenceName = "S_TIER_WEIGHT")
@Column(name = "OID")
@Id
@GeneratedValue(strategy = GenerationType.AUTO, generator = "tierSequence")
private Long id;
@OneToMany
@JoinColumn(name = "TIER_WEIGHT_OID", referencedColumnName = "OID")
private Set<EnrollmentGroupMembership> memberships;
public TierWeight() {
}
}
邏輯層的代碼是
@Override
public void createTier(String tierName, float weight) {
TierWeight tier = new TierWeight();
tier.setWeight(weight);
tier.setTier(tierName);
tierWeightDAO.create(tier);
}
許多相似的一體化配置工作,通過了該項目。我不知道爲什麼這一例失敗。任何幫助將不勝感激。
下面是我得到
由導致錯誤: org.hibernate.id.IdentifierGenerationException: IDS這個類必須是調用save()之前手動 分配: EDU .apollogrp.d2ec.model.TierWeight at org.hibernate.id.Assigned.generate(Assigned.java:3 3)at org.hibernate.event.def.AbstractSaveEventListener。 saveWithGeneratedId(AbstractSaveEventListener.java :99)
日誌文件,告訴該序列發生器tierSequence是沒有得到建立。但是其他序列生成器正在創建。
2010-06-03 11:24:51834 DEBUG [org.hibernate.cfg.AnnotationBinder:]的 處理註解edu.apollogrp.d2ec.model.TierWeight.dateCreated 2010-06-03 11:24:51834 DEBUG [org.hibernate.cfg.AnnotationBinder:]的 處理註解edu.apollogrp.d2ec.model.TierWeight.dateCreated 2010-06-03 11:24:51834 DEBUG [org.hibernate作爲.cfg.Ejb3Column:] 綁定列DATE_CREATED獨特 false
....................................... ........ ............................... 2010-06-03 11:24:51,756調試 [org.hibernate.cfg .AnnotationBinder:]的 處理註解edu.apollogrp.d2ec.model.CounselorAvailability.id 2010-06-03 11:24:51756 DEBUG [org.hibernate.cfg.Ejb3Column:] 結合柱OID獨特假 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.Ejb3Column:] 綁定列OID唯一false 2010-06-03 11:24:51,756調試 [org.hibernate.cfg.AnnotationBinder: ] id是一個id 2010-06-03 11:24:51, 756 DEBUG [org.hibernate.cfg.AnnotationBinder:] id爲一個id 2010-06-03 11:24:51756 DEBUG [org.hibernate.cfg.AnnotationBinder:] 添加序列發生器與名稱: counselorAvailabilityID 2010-06-03 11:24:51,756調試 [org.hibernate.cfg。AnnotationBinder:] 添加序列發生器名稱: counselorAvailabilityID
調試時,我看到org.hibernate.impl.SessionFactoryImpl正在返回 「分配」 identifierGenerator。這太可怕了。我已將identifierGenerator指定爲「Auto」。請參閱上面的代碼。
作爲一個旁註,我試圖調試並查看如何從數據庫中檢索對象。看起來登記組成員記錄具有填充權重值。但是,如果我查看tierweight對象,它沒有登記組成員記錄。我很困惑。我認爲這兩個問題必須相關。
Maddy。
@luvfort也許你wnat看到http://stackoverflow.com/questions/1729723/hibernate-does-not-generate-identifier-when - 使用Oracle的序列 – 2010-06-04 16:28:31