Database 如果集合包含集合,则休眠条件
我有一节私人课Database 如果集合包含集合,则休眠条件,database,hibernate,hibernate-criteria,restriction,Database,Hibernate,Hibernate Criteria,Restriction,我有一节私人课 @Entity @Table(name = "PK_PRIVS", schema = "dbo") public class Priv implements java.io.Serializable{ private static final long serialVersionUID = 1L; private String code; private String name; private String description; private PrivType type
@Entity
@Table(name = "PK_PRIVS", schema = "dbo")
public class Priv implements java.io.Serializable{
private static final long serialVersionUID = 1L;
private String code;
private String name;
private String description;
private PrivType type;
//...
}
以及一个报表类,它与Priv有多对多关系,并包含一组相关的Priv-Priv
@Entity
@Table(name = "REPORT", schema = "dbo")
public class Report implements java.io.Serializable {
//...
private Set<Priv> privs = new HashSet<Priv>(0);
//...
@JsonIgnore
@ManyToMany(fetch = FetchType.LAZY)
@JoinTable(name = "REPORT_PK_PRIVS", schema = "dbo", joinColumns = { @JoinColumn(name = "REPORT_ID") }, inverseJoinColumns = { @JoinColumn(name = "PK_PRIVS_CODE") })
public Set<Priv> getPrivs() {
return this.privs;
}
public void setPrivs(Set<Priv> privs) {
this.privs = privs;
}
}
现在我有了一组字符串,它们是Priv类的代码。代码是Priv中的主键
Set<String> privsCodesSet; //set of codes of Priv classes
我需要一个标准,允许我找到报告,它的Priv集合中的所有代码都包含在privscodeset中。例如,如果我有privsCodeSet={code1,code2}
带有代码{code1的privs的报告应为结果,但
不应使用代码为{code1,code2,code3}的privs报告
我还有一个类,它是Priv和Report的连接,但我不确定它是否有帮助。这段代码应该可以工作
Criteria reportPrivCriteria = currentSession()
.createCriteria( Report.class, "r");
reportPrivCriteria.createAlias("privs", "p");
reportPrivCriteria.add(Restrictions.in(p.code, privsCodeSet));
你的私人课上有这样的东西吗
private Set<Report> reports;
// ...
@ManyToMany(mappedBy="privs")
public Collection<Report> getReports() {
return reports;
}
我试过这样的方法:Criteria reportPrivCriteria=currentSession.createCriteria Report.class,r;reportPrivCriteria.createCriteriaprivs,p;reportPrivCriteria.addResstriction.inp.code,privscodes