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我有兩個班，monitoringExpression和reportTrigger，用一個一對多的關係。 Hibernate試圖從monitoringExpression類持有的集合中保存重複的reportTriggers。第一次插入到reportTrigger集合中工作，但隨後的插入失敗並導致唯一的約束衝突，因爲hibernate會嘗試保留相同的reportTrigger兩次。這與已知的休眠錯誤（Hibernate inserts duplicates into a @OneToMany collection）非常相似;然而，在這種情況下，我們並沒有使用懶惰的集合。下面是相關代碼：休眠重複插入到一個一對多的集合 - 預先抓取
MonitoringExpression.Class
@Audited
@Entity
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class MonitoringExpression extends GeneratedIdXmlObject{
private String name;
private DeterminantDefinition determinantDefinition;
private String valueExpression;
private String testExpression;
private String messageExpression;
private String messageSeverity;
private boolean setExitStatusWhenTrue;
protected SortedSet<MonitoringExpressionAttribute> attributes = new TreeSet<MonitoringExpressionAttribute>();
private String color;
private Set<ReportTrigger> reportTriggers = new HashSet<ReportTrigger>();
.
.
.
@OneToMany(mappedBy="monitoringExpression",orphanRemoval=true,cascade={CascadeType.ALL},fetch=FetchType.EAGER)
@Sort(type=SortType.NATURAL)
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public SortedSet<MonitoringExpressionAttribute> getAttributes() {
return attributes;
}
public void setAttributes(SortedSet<MonitoringExpressionAttribute> attributes) {
this.attributes = attributes;
}
ReportTrigger.Class
@Audited
@Table(name="ReportTrigger")
@Entity
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class ReportTrigger extends GeneratedIdXmlObject{
private String name;
private String description;
private TriggerableReport report;
private Frequency burstPeriodSize;
private String periodStartExpression;
private String periodEndExpression;
private Set<ReportTriggerParameterMapping> parameterMappings = new HashSet<ReportTriggerParameterMapping>();
private MonitoringExpression monitoringExpression;
@XmlIDREF
@ManyToOne
@Audited
@GraphProcessorOverride(process=false,recurse=false)
@NaturalId(mutable=true)
public TriggerableReport getReport() {
return report;
}
public void setReport(TriggerableReport report) {
this.report = report;
}
@Embedded
public Frequency getBurstPeriodSize() {
return burstPeriodSize;
}
public void setBurstPeriodSize(Frequency burstPeriodSize) {
this.burstPeriodSize = burstPeriodSize;
}
@Audited
@OneToMany(mappedBy="reportTrigger",orphanRemoval=true,cascade={CascadeType.ALL})
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public Set<ReportTriggerParameterMapping> getParameterMappings() {
return parameterMappings;
}
.
.
.
@XmlIDREF
@ManyToOne
@GraphProcessorOverride(process=false,recurse=false)
@NaturalId(mutable=true)
public MonitoringExpression getMonitoringExpression() {
return monitoringExpression;
}
public void setMonitoringExpression(MonitoringExpression monitoringExpression) {
this.monitoringExpression = monitoringExpression;
}
據我所知，我們什麼都沒有做出來的普通到reportTrigger集合（我們顯然不能將兩個相同的tigger添加到集合中）。有沒有人看過類似的東西？由於
休眠3.6.10
的Java 8