使用复合键（EJB）的命名查询

时间：2013-03-13 10:06:53

标签： sql hibernate ejb named-query

我有一个带有复合键的关联表。我正在尝试运行一个基于某些值（复合键）选择的命名查询。

这就是代码的样子：

@Entity
@NamedQueries({
@NamedQuery(name = "MW.findAll", query = "SELECT mw FROM MemberWorkout mw"),
@NamedQuery(name = "MW.find1", query = "SELECT mw FROM MemberWorkout mw WHERE mw.SocialSecurity LIKE :SocialSecurity"), })
@Table(name = "MemberWorkout")
public class MemberWorkout implements Serializable {

private Member member;
private Workout workout;
private String date;
private MWId mwId;

@EmbeddedId
public MWId getId() {
    return mwId;
}

public void setId(MWId mwId) {
    this.mwId = mwId;
}
....
@ManyToOne
@JoinColumn(name = "SocialSecurity", insertable = false, updatable = false)
public Member getMember() {
    return member;
}

public void setMember(Member member) {
    this.member = member;
}

这是我在部署和启动服务器（JBOSS）时遇到的第一个错误：

ERROR [org.hibernate.internal.SessionFactoryImpl] (MSC service thread 1-1) HHH000177:   Error in named query: MW.find1: org.hibernate.QueryException: could not resolve property: SocialSecurity of: org.ics.ejb.MemberWorkout [SELECT mw FROM org.ics.ejb.MemberWorkout mw WHERE mw.SocialSecurity LIKE :SocialSecurity]
at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:83) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:77) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.toType(AbstractEntityPersister.java:1809) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.FromElementType.getPropertyType(FromElementType.java:313) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.FromElement.getPropertyType(FromElement.java:485) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.DotNode.getDataType(DotNode.java:598) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.DotNode.prepareLhs(DotNode.java:266) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.DotNode.resolve(DotNode.java:213) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:118) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:114) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.HqlSqlWalker.resolve(HqlSqlWalker.java:883) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.expr(HqlSqlBaseWalker.java:1246) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.exprOrSubquery(HqlSqlBaseWalker.java:4252) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:3874) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1923) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:782) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:583) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:287) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:235) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:248) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:101) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:119) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.internal.SessionFactoryImpl.checkNamedQueries(SessionFactoryImpl.java:974) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:485) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1737) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:889) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:162) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:85) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.7.0_11]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.7.0_11]
at java.lang.Thread.run(Unknown Source) [rt.jar:1.7.0_11]

1 个答案:

答案 0 :(得分：0)

如果我正确理解了该问题，则SocialSecurity是MWId嵌入的字段。如果您想通过查询访问它，则需要通过嵌入式ID导航到它：

SELECT mw FROM MemberWorkout mw WHERE mw.id.SocialSecurity...

我假设属性名称是大写的，就像在代码中一样。如果没有，请用正确的名称替换它。

请注意，您正在使用属性访问，这意味着因为访问器方法已注释，您需要根据JavaBean标准在查询中命名该属性（getId()表示HQL和JPQL将访问该属性作为id）。如果您对该字段进行注释，则需要将查询更改为mwId。

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