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私はデータベーストランザクションを処理するためにhibernateを使用しています。Hibernate：org.hibernate.NonUniqueObjectException
SegmentFileEntity
SegmentFileMappingEntity
SegmentFileEntity一つ以上のSegmentFileMappingEntityを持つことができます。
私は2つのエンティティを持っています。参加鍵はSegmentFileEntityため
関連するテーブル構造の主キーであるSEGMENT_FILE_IDです：
CREATE TABLE OAP_META_NEW.SEGMENT_FILE
(
SEGMENT_FILE_ID NUMBER(10) DEFAULT OAP_META_NEW.SEGMENT_FILE_SEQ.NEXTVAL CONSTRAINT SEGMENTFILEID_NOTNULL NOT NULL,
SEGMENT_FILE_PATH VARCHAR2(500 BYTE) CONSTRAINT SEGMENTFILEPATH_NOTNULL NOT NULL,
CLIENT_ID NUMBER(10) CONSTRAINT SEGMENTFILE_CLIENTID_NOTNULL NOT NULL,
INSERT_DATE DATE NOT NULL
)
そして、そのテーブルの上にcontraintsの詳細：
[[ここに画像の説明を入力します！ ] [1]] [1]
SegmentFileMappingEnti TY：
CREATE TABLE OAP_META_NEW.SEGMENT_FILE_MAPPING
(
SEGMENT_FILE_MAPPING_ID NUMBER(10) DEFAULT OAP_META_NEW.SEGMENT_FILE_MAPPING_SEQ.NEXTVAL CONSTRAINT SFM_SFMID_NOTNULL NOT NULL,
SEGMENT_FILE_ID NUMBER(10) CONSTRAINT SFM_SEGMENTFILEID_NOTNULL NOT NULL,
ATTRIBUTE_POSITION NUMBER(3) CONSTRAINT SFM_ATTRIBUTEPOSITION_NOTNULL NOT NULL,
ATTRIBUTE_NAME VARCHAR2(100 BYTE) CONSTRAINT SFM_ATTRIBUTENAME_NOTNULL NOT NULL
)
そして、そのテーブル上の制約の詳細：
[2]ここで
は私のテストである[[ここに画像の説明を入力します] [2]！]これらのエンティティ上で実行しています：
public class SegmentFileTest
extends AbstractTest
{
private long attCatId;
private int attCatTypeId;
private long attDelimitedSavedId;
private long attFixedSavedId;
private long attDerivedSavedId;
SegmentFileService segmentFileService;
@BeforeClass
public void setUpAttributeCategoryTypeAttributeCategory()
{
segmentFileService = context.getBean(SegmentFileService.class);
}
@Test
public void saveSegmentFile()
{
//Create segment-file
SegmentFileEntity segmentFile = new SegmentFileEntity();
segmentFile.setClientId(0);
segmentFile.setSegmentFilePath("/fakepath/");
segmentFile.setInsertDate(new Date((new java.util.Date()).getTime()));
//Create segment-file-mapping
List<SegmentFileMappingEntity> fileMappings = new ArrayList<SegmentFileMappingEntity>();
SegmentFileMappingEntity segmentFileMapping1 = new SegmentFileMappingEntity();
segmentFileMapping1.setAttributeName("attr1");
segmentFileMapping1.setAttributePosition(1);
SegmentFileMappingEntity segmentFileMapping2 = new SegmentFileMappingEntity();
segmentFileMapping2.setAttributeName("attr2");
segmentFileMapping2.setAttributePosition(2);
fileMappings.add(segmentFileMapping1);
fileMappings.add(segmentFileMapping2);
segmentFile.setSegmentFileAttributeMappings(fileMappings);
segmentFileService.saveSegmentFileEntity(segmentFile);
}
}
問題：
SegmentFileEntityを保存しているときに1つのSegmentFileMappingEntityしか使用しない場合は問題ありません。 SegmentFileEntityを節約しながら、私は、1以上SegmentFileMappingEntityを使用している場合しかし、私は、エラーを見ています：
SegmentFileEntity **：**
package com.company.online.segment.api.entities;
import javax.persistence.*;
import java.io.Serializable;
import java.sql.Date;
import java.util.Collection;
import java.util.List;
@Entity
@Table(name = "SEGMENT_FILE", schema = "OAP_META_NEW")
@SequenceGenerator(name = "segment_file_seq", sequenceName = "OAP_META_NEW.SEGMENT_FILE_SEQ")
public class SegmentFileEntity implements Serializable
{
private int segmentFileId;
private String segmentFilePath;
private int clientId;
private Date insertDate;
@Id
@Column(name = "SEGMENT_FILE_ID" , nullable = false, unique = true, precision = 0)
@GeneratedValue(strategy = GenerationType.AUTO, generator = "segment_file_seq")
@JoinColumn(name = "SEGMENT_FILE_ID", referencedColumnName = "SEGMENT_FILE_ID")
public int getSegmentFileId()
{
return segmentFileId;
}
public void setSegmentFileId(int segmentFileId)
{
this.segmentFileId = segmentFileId;
}
@Basic @Column(name = "SEGMENT_FILE_PATH") public String getSegmentFilePath()
{
return segmentFilePath;
}
public void setSegmentFilePath(String segmentFilePath)
{
this.segmentFilePath = segmentFilePath;
}
@Basic @Column(name = "CLIENT_ID") public int getClientId()
{
return clientId;
}
public void setClientId(int clientId)
{
this.clientId = clientId;
}
@Basic @Column(name = "INSERT_DATE")
public Date getInsertDate()
{
return insertDate;
}
public void setInsertDate(Date insertDate)
{
this.insertDate = insertDate;
}
@Override public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
SegmentFileEntity that = (SegmentFileEntity) o;
if (segmentFileId != that.segmentFileId)
return false;
if (clientId != that.clientId)
return false;
if (segmentFilePath != null ? !segmentFilePath.equals(that.segmentFilePath) : that.segmentFilePath != null)
return false;
if (insertDate != null ? !insertDate.equals(that.insertDate) : that.insertDate != null)
return false;
return true;
}
@Override public int hashCode()
{
int result = segmentFileId;
result = 31 * result + (segmentFilePath != null ? segmentFilePath.hashCode() : 0);
result = 31 * result + clientId;
result = 31 * result + (insertDate != null ? insertDate.hashCode() : 0);
return result;
}
private List<SegmentFileMappingEntity> segmentFileAttributeMappings;
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER , orphanRemoval = true)
@JoinColumn(name = "SEGMENT_FILE_ID", referencedColumnName = "SEGMENT_FILE_ID", nullable = false)
public List<SegmentFileMappingEntity> getSegmentFileAttributeMappings()
{
return segmentFileAttributeMappings;
}
public void setSegmentFileAttributeMappings(List<SegmentFileMappingEntity> segmentFileAttributeMappings)
{
this.segmentFileAttributeMappings = segmentFileAttributeMappings;
}
}
org.hibernate.NonUniqueObjectException: A different object with the same identifier value was already associated with the session. Any insight?
は私のjava-休止状態のエンティティがあります
SegmentFileMappingEntity：
package com.company.online.segment.api.entities;
import javax.persistence.*;
import java.io.Serializable;
@Entity @Table(name = "SEGMENT_FILE_MAPPING", schema = "OAP_META_NEW")
public class SegmentFileMappingEntity implements Serializable
{
private int segmentFileMappingId;
private int segmentFileId;
private int attributePosition;
private String attributeName;
@Id @Column(name = "SEGMENT_FILE_MAPPING_ID") public int getSegmentFileMappingId()
{
return segmentFileMappingId;
}
public void setSegmentFileMappingId(int segmentFileMappingId)
{
this.segmentFileMappingId = segmentFileMappingId;
}
@Basic
@Column(name = "SEGMENT_FILE_ID", nullable = false, precision = 0, updatable = false, insertable = false)
public int getSegmentFileId()
{
return segmentFileId;
}
public void setSegmentFileId(int segmentFileId)
{
this.segmentFileId = segmentFileId;
}
@Basic @Column(name = "ATTRIBUTE_POSITION") public int getAttributePosition()
{
return attributePosition;
}
public void setAttributePosition(int attributePosition)
{
this.attributePosition = attributePosition;
}
@Basic @Column(name = "ATTRIBUTE_NAME") public String getAttributeName()
{
return attributeName;
}
public void setAttributeName(String attributeName)
{
this.attributeName = attributeName;
}
@Override public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
SegmentFileMappingEntity that = (SegmentFileMappingEntity) o;
if (segmentFileMappingId != that.segmentFileMappingId)
return false;
if (segmentFileId != that.segmentFileId)
return false;
if (attributePosition != that.attributePosition)
return false;
if (attributeName != null ? !attributeName.equals(that.attributeName) : that.attributeName != null)
return false;
return true;
}
@Override public int hashCode()
{
int result = segmentFileMappingId;
result = 31 * result + segmentFileId;
result = 31 * result + attributePosition;
result = 31 * result + (attributeName != null ? attributeName.hashCode() : 0);
return result;
}
}