我有一个非常简单的一对多关系,并希望使用 in 子句过滤多方(集合)。我无法让过滤器工作。Hibernate 抱怨过滤器参数未定义(当使用 Set 或 Integer 作为类型时)或者它说传入的值的类型错误(当使用 int 参数类型时)
关系:一个Category有很多测试用例,一个测试用例只有一个Category
波乔#1
@Entity
@Table(name = "CATEGORY")
public class Category
{
@Id
@Column(name = "CATEGORYID")
private int ID;
@Column(name = "CATEGORYNAME")
private String name;
@OneToMany(fetch = FetchType.EAGER)
@JoinColumn(name = "CATEGORYID")
@Filter(name = "TEST_RUN_ID_FILTER")
private Collection<SimpleTestCase> testCases;
}
波乔#2
@Entity
@Table(name = "TESTCASE_NEW")
@FilterDef(name = "TEST_RUN_ID_FILTER", defaultCondition = "TESTRUNID in (:IDS)", parameters = { @ParamDef(name = "IDS", type = "Integer") })
public class SimpleTestCase
{
@Id
@Column(name = "TESTCASEID")
private int ID;
@Column(name = "TESTCASENAME")
private String name;
@Column(name = "STATUS")
private String status;
@Column(name = "TESTRUNID")
private int testRunId;
}
道
public List<Category> getAllCategoriesForTestRuns(Set<Integer> testRunIDs)
{
Session session = getSession();
session.enableFilter("TEST_RUN_ID_FILTER")
.setParameter("IDS", testRunIDs);
Query query = session.createQuery("FROM " + Category.class.getSimpleName());
List<Category> result = query.list();
return result;
}
异常(当 Set 或 Integer 是参数类型时):
Java.lang.IllegalArgumentException: Undefined filter parameter [IDS]
at org.hibernate.impl.FilterImpl.setParameter(FilterImpl.java:74)
异常(当 int 是参数类型时)
java.lang.IllegalArgumentException: Incorrect type for parameter [IDS]
at org.hibernate.impl.FilterImpl.setParameter(FilterImpl.java:77)