Question

我的应用程序使用Hibernate 5.02和Wildfly 10以及PostgreSQL 9.5数据库。我试图在通过NamedQuery构造的实体中保存的@OneToMany集合上启用过滤器。不幸的是，似乎只是忽略了过滤器。以下是不同的组件，为便于阅读而进行了编辑。

@NamedNativeQueries({
@NamedNativeQuery(
        name = "getAnalystProcess",
        query = "SELECT * FROM analysis.analystprocess WHERE id = :processId",
        resultClass = AnalystProcessEntity.class
)})
@FilterDef(
    name = "analystProcessUnanalyzedMsgsFilter",
    parameters = { @ParamDef(name = "processIds", type = "integer"), @ParamDef(name = "analystIds", type = "integer") })
@Filter(name = "analystProcessUnanalyzedMsgsFilter", condition = "analystprocess_id IN (:processIds) AND id NOT IN (SELECT msg_id FROM analysis.analyzedmsg WHERE analyst_id IN (:analystIds) AND analystprocess_id IN (:processIds)) ORDER BY process_msg_id")
@Entity
@Table(name = "analystprocess", schema = "analyst")
public class AnalystProcessEntity implements JPAEntity {

public static final String GET_PROCESS = "getAnalystProcess";
public static final String MSG_FILTER = "analystProcessUnanalyzedMsgsFilter";
public static final String MSG_FILTER_PROC_ID_PARAM = "processIds";
public static final String MSG_FILTER_ANALYST_ID_PARAM = "analystIds";

private static final long serialVersionUID = 1L;

...

@OneToMany(fetch = FetchType.LAZY, orphanRemoval = true, mappedBy = "process")
@OrderColumn(name = "process_msg_id")
@LazyCollection(LazyCollectionOption.EXTRA)
private List<MsgEntity> msgList;

@Entity
@Table(name = "msg", schema = "analyst")
public class MsgEntity implements JPAEntity {

...

@ManyToOne(cascade = CascadeType.ALL, optional = false)
@JoinColumn(name = "analystprocess_id", referencedColumnName = "id")
private AnalystProcessEntity process;

@Column(name = "process_msg_id")
private Integer processMsgId;

private void buildAnalystProcess() {
    LOG.info("Building AnalystProcessEntity");
    analystUser.getJdbcSession().enableFilter(AnalystProcessEntity.MSG_FILTER)
                .setParameter(AnalystProcessEntity.MSG_FILTER_PROC_ID_PARAM, analystProcessId)
                .setParameter(AnalystProcessEntity.MSG_FILTER_ANALYST_ID_PARAM, analystUser.getId());

    Query query = analystUser.getJdbcSession().getNamedQuery(AnalystProcessEntity.GET_PROCESS)
            .setParameter("processId", analystProcessId);

//        Query query = analystUser.getJdbcSession().createNativeQuery("SELECT * FROM analysis.analystprocess WHERE id = :processId")
//                    .setParameter("processId", analystProcessId)
//                    .addEntity(AnalystProcessEntity.class);

    analystProcess = (AnalystProcessEntity) query.getSingleResult();

CREATE TABLE analysis.analystprocess (
        id SERIAL PRIMARY KEY,
        name TEXT NOT NULL UNIQUE,
        description TEXT,
        created_date TIMESTAMP NOT NULL DEFAULT now(),
        ...
);

CREATE TABLE analysis.msg (
        id SERIAL PRIMARY KEY,
        analystprocess_id INTEGER NOT NULL REFERENCES analysis.analystprocess(id) ON DELETE CASCADE ON UPDATE CASCADE,
        process_msg_id INTEGER NOT NULL,
        constraint tbl_statusid_analystprocessid unique(status_id, analystprocess_id)
);

如上所示，我还尝试过使用createNativeQuery而不是getNamedQuery构建AnalystProcessEntity类的过滤器，但没有运气。

我还在@FilterDef中添加了一个带有硬编码值的defaultCondition，看看它是否会执行默认条件，但它仍然没有。

我已经在实体定义之上以及类定义之上尝试了@Filter。我甚至看到一篇博客文章，它听起来像条件引用实体字段（变量名称）而不是表字段（列名称）。试图坚持表中的Entity和Postgres命名约定中的Java命名约定，所以我尝试在条件中切换引用，但没有用。

我在Hibernate中启用了sql日志记录，并且条件并没有显示在任何地方，就像它只是被忽略一样。

非常感谢任何帮助！

Answer 1

所以，问题是我将@FilterDef应用于错误的类。我的假设是，因为我正在构建包含MsgEntity集合（我试图过滤）的AnalystProcessEntity，所以@FilterDef将应用于AnalystProcessEntity类。相反，它需要应用于它实际过滤的实体（后见之明是20/20，非常明显）。

此外，需要修改实际条件以在子选择查询中使用完整引用。

我希望这在某些方面对某人有帮助......

@NamedNativeQueries({
@NamedNativeQuery(
        name = "getAnalystProcess",
        query = "SELECT * FROM analysis.analystprocess WHERE id = :processId",
        resultClass = AnalystProcessEntity.class
)})
@Filter(name = "analystProcessUnanalyzedMsgsFilter", condition = "id NOT IN (SELECT amsg.msg_id FROM analysis.analyzedmsg amsg WHERE amsg.analyst_id IN (:analystIds) AND amsg.analystprocess_id IN (:processIds))")
@Entity
@Table(name = "analystprocess", schema = "analyst")
public class AnalystProcessEntity implements JPAEntity {

public static final String GET_PROCESS = "getAnalystProcess";
public static final String MSG_FILTER = "analystProcessUnanalyzedMsgsFilter";
public static final String MSG_FILTER_PROC_ID_PARAM = "processIds";
public static final String MSG_FILTER_ANALYST_ID_PARAM = "analystIds";

private static final long serialVersionUID = 1L;

...

@OneToMany(fetch = FetchType.LAZY, orphanRemoval = true, mappedBy = "process")
@OrderColumn(name = "process_msg_id")
@LazyCollection(LazyCollectionOption.EXTRA)
private List<MsgEntity> msgList;

@FilterDef(
    name = "analystProcessUnanalyzedMsgsFilter",
    parameters = { @ParamDef(name = "processIds", type = "integer"), @ParamDef(name = "analystIds", type = "integer") })
@Entity
@Table(name = "msg", schema = "analyst")
public class MsgEntity implements JPAEntity {

...

@ManyToOne(cascade = CascadeType.ALL, optional = false)
@JoinColumn(name = "analystprocess_id", referencedColumnName = "id")
private AnalystProcessEntity process;

@Column(name = "process_msg_id")
private Integer processMsgId;

此外，我遇到了另一个出现在集合中的null的问题，尽管事实上我正在使用@OrderColumn，我认为这个问题已经解决了。似乎通过使用@Filter，插入了null，代替了最终被过滤掉的东西（排除在外）。

Hibernate过滤器被忽略

1 个答案: