我想在一个实体上使用多个 Hibernate 过滤器,我已经尝试了所有合乎逻辑的事情,但没有运气,而 Google 在这方面做得不够,Hibernate 文档也是如此。我无法想象这是不可能的。(使用 Java 6 Hibernate 4.1.9.final)
目前,我有这个:
@Entity
@Table(name = "CATEGORY")
public class Category implements Serializable
{
private static final long serialVersionUID = 1L;
@Id
@Column(name = "CATEGORYID")
private int ID;
@Column(name = "CATEGORYNAME")
private String name;
@OneToMany(fetch = FetchType.EAGER)
@JoinColumn(name = "CATEGORYID")
@OrderBy("TESTCASEID desc")
@Filter(name = "TEST_RUN_ID_FILTER")
private Collection<TestCase> testCases;
...
}
@Entity
@Table(name = "TESTCASE_NEW")
@FilterDef(name = "TEST_RUN_ID_FILTER", defaultCondition = "TESTRUNID in (:IDS)", parameters = { @ParamDef(name = "IDS", type = "int") })
public class TestCase implements Serializable
{
private static final long serialVersionUID = 1L;
@Id
@Column(name = "TESTCASEID")
private int ID;
@Column(name = "TESTCASENAME")
private String name;
...
}
我想向 Testcase 类添加第二个独立过滤器。我所追求的是这样的:
Select ...
From CATEGORY INNER JOIN TESTCASE on CATEGORY.CATEGORYID = TESTCASE.CATEGORYID
Where TESTCASE.TESTRUNID in (....)
and TESTCASE.TESTCASENAME like '%..%'
这是我尝试过的
我尝试像这样将多个@FilterDefs 添加到TestCase,但是没有编译:
@Entity
@Table(name = "TESTCASE_NEW")
@FilterDef(name = "TEST_RUN_ID_FILTER", defaultCondition = "TESTRUNID in (:IDS)",
parameters = { @ParamDef(name = "IDS", type = "int") })
@FilterDef(name = "TESTCASE_NAME_FILTER", defaultCondition = "TESTCASENAME like :TESTCASE_NAME",
parameters = { @ParamDef(name = "TESTCASE_NAME", type = "string") })
public class TestCase implements Serializable
{
private static final long serialVersionUID = 1L;
@Id
@Column(name = "TESTCASEID")
private int ID;
@Column(name = "TESTCASENAME")
private String name;
...
}
Hibernate 文档导致尝试这样的事情,抱怨 testrunid 过滤器不存在
@Entity
@Table(name = "CATEGORY")
public class Category implements Serializable
{
private static final long serialVersionUID = 1L;
@Id
@Column(name = "CATEGORYID")
private int ID;
@Column(name = "CATEGORYNAME")
private String name;
@OneToMany(fetch = FetchType.EAGER)
@JoinColumn(name = "CATEGORYID")
@OrderBy("TESTCASEID desc")
private Collection<TestCase> testCases;
...
}
@Entity
@Table(name = "TESTCASE_NEW")
@FilterDef(name = "TESTCASE_FILTER", parameters = { @ParamDef(name = "IDS", type = "int"), @ParamDef(name = "TESTCASE_NAME", type = "string") })
@Filters({ @Filter(name = "TEST_RUN_ID_FILTER", condition = "TESTRUNID in (:IDS)"), @Filter(name = "TESTCASE_NAME_FILTER", condition = "TESTCASENAME like :TESTCASE_NAME") })
// @FilterDef(name = "TEST_RUN_ID_FILTER", defaultCondition = "TESTRUNID in (:IDS)", parameters = { @ParamDef(name =
// "IDS", type = "int") })
public class TestCase implements Serializable
{
private static final long serialVersionUID = 1L;
@Id
@Column(name = "TESTCASEID")
private int ID;
@Column(name = "TESTCASENAME")
private String name;
...
}
@SuppressWarnings("unchecked")
public List<Category> getCategories(List<Integer> testRunIDs, String category, String testCaseName)
{
Session session = getSession();
session.enableFilter("FILE_TYPE_FILTER");
if (testRunIDs != null && testRunIDs.size() != 0)
{
session.enableFilter("TEST_RUN_ID_FILTER").setParameterList("IDS", testRunIDs);
}
if (category != null && !category.equals("0") && !category.equals(""))
{
session.enableFilter("CATEGORY_FILTER").setParameter("CATEGORY", category);
}
/*
* Hibernate wants to do an (left) outer join be default.
* This bit of HQL is required to get it to do an inner join.
* The query tells Hibernate to do an inner join on the testCases property inside the Category object
*/
Query query = session.createQuery("select distinct c from Category c inner join c.testCases tc");
List<Category> result = query.list();
return result;
..
}
非常感谢您的帮助