[英]unidirectional many to one relationship with inheritance
我試圖在休眠狀態下映射class ED
和class TEL
class ED
之間的多對一關系,但是當我嘗試Run As.. Run on server
時出現以下錯誤Run As.. Run on server
在eclipse中的Run As.. Run on server
上Run As.. Run on server
:
Caused by: org.hibernate.MappingException: Could not determine type for:
my.package.name.TEL, at table: ed, for columns:
[org.hibernate.mapping.Column(reference)]
如何解決此錯誤? ED類僅具有一個TEL屬性,但是TEL類在許多其他類中用作屬性,因此使其成為雙向關系沒有任何意義。 我將不再需要查找與給定TEL相關的所有ED對象。 大多數TEL實例將與ED實例沒有關系,但是所有ED實例將具有一個TEL屬性。 我對關系的分類正確嗎? 以及如何更改下面的代碼來解決此錯誤? 請注意,繼承使事情復雜化。
這是TEL.java:
@Entity(name = "tel")
@Table(name = "tel")
public class TEL extends ANY {
private String value;
@Column(name = "value")
public String getValue(){return value;}
public void setValue(String val){value = val;}
}
這是ED.java:
@Entity(name = "ed")
@Table(name = "ed")
public class ED extends ANY{
private byte[] data;
private String mediaType;
private String language;
private TEL reference;
@Column(name = "data")
public byte[] getData(){return data;}
public void setData(byte[] d){data = d;}
@Column(name = "mediaType")
public String getMediaType(){return mediaType;}
public void setMediaType(String mt){mediaType = mt;}
@Column(name = "language")
public String getLanguage(){return language;}
public void setLanguage(String lng){language = lng;}
@ManyToOne
@JoinColumn(name = "hppid")
public TEL getReference(){return reference;}
public void setReference(TEL ref){reference = ref;}
}
這是ANY.java:
@Entity(name = "rim_any")
@Table(name = "rim_any")
public class ANY extends BaseEntity{
private CS nullFlavor;
public CS getNullFlavor(){return nullFlavor;}
public void setNullFlavor(CS nf){nullFlavor = nf;}
}
這是BaseEntity.java:
@Entity
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
@DiscriminatorFormula("(CASE WHEN dtype IS NULL THEN 'BaseEntity' ELSE dtype END)")
@org.hibernate.annotations.DiscriminatorOptions(force=true)
public abstract class BaseEntity {
@Transient
private String dtype = this.getClass().getSimpleName();
@Id
@GeneratedValue(
strategy=GenerationType.TABLE,
generator="TBL_GEN")
@TableGenerator(
name="TBL_GEN",
table="GENERATOR_TABLE",
pkColumnName = "mykey",
valueColumnName = "hi",
pkColumnValue="hppid",
allocationSize=20
)
protected Long hppid;
public void setHppid(Long id) {this.hppid = id;}
public Long getHppid() {return hppid;}
public void setDtype(String dt){dtype=dt;}
public String getDtype(){return dtype;}
public boolean isNew() {return (this.id == null);}
}
這是當我嘗試從Eclipse中Run As...Run on server
時引發的完整堆棧跟蹤:
ERROR ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [spring/business-config.xml]: Initialization of bean failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [spring/business-config.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: myapp] Unable to build EntityManagerFactory
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:741) ~[spring-context-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) ~[spring-context-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) ~[spring-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) ~[spring-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) [spring-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4772) [catalina.jar:8.0.15]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196) [catalina.jar:8.0.15]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:8.0.15]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409) [catalina.jar:8.0.15]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1399) [catalina.jar:8.0.15]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_71]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_71]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_71]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [spring/business-config.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: myapp] Unable to build EntityManagerFactory
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1512) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:438) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:277) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:79) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:71) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:85) ~[spring-tx-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1532) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1500) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
... 19 common frames omitted
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: myapp] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:923) ~[hibernate-entitymanager-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:898) ~[hibernate-entitymanager-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:76) ~[hibernate-entitymanager-4.2.1.Final.jar:4.2.1.Final]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:288) ~[spring-orm-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310) ~[spring-orm-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509) ~[spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
... 34 common frames omitted
Caused by: org.hibernate.MappingException: Could not determine type for: my.package.name.TEL, at table: ed, for columns: [org.hibernate.mapping.Column(reference)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:314) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:292) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.mapping.Property.isValid(Property.java:239) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:469) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.mapping.UnionSubclass.validate(UnionSubclass.java:61) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.cfg.Configuration.validate(Configuration.java:1296) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1752) ~[hibernate-core-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:96) ~[hibernate-entitymanager-4.2.1.Final.jar:4.2.1.Final]
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:913) ~[hibernate-entitymanager-4.2.1.Final.jar:4.2.1.Final]
... 40 common frames omitted
Apr 14, 2015 6:12:45 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [spring/business-config.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [spring/business-config.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: myapp] Unable to build EntityManagerFactory
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:741)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4772)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1399)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [spring/business-config.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: myapp] Unable to build EntityManagerFactory
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1512)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:438)
at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:277)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:139)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:79)
at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:71)
at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:85)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1532)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1500)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
... 19 more
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: myapp] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:923)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:898)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:76)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:288)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
... 34 more
Caused by: org.hibernate.MappingException: Could not determine type for: my.package.name.TEL, at table: ed, for columns: [org.hibernate.mapping.Column(reference)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:314)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:292)
at org.hibernate.mapping.Property.isValid(Property.java:239)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:469)
at org.hibernate.mapping.UnionSubclass.validate(UnionSubclass.java:61)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1296)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1752)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:96)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:913)
... 40 more
Apr 14, 2015 6:12:45 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Apr 14, 2015 6:12:45 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/myapp] startup failed due to previous errors
Apr 14, 2015 6:12:45 PM org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
Apr 14, 2015 6:12:45 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Apr 14, 2015 6:12:45 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Apr 14, 2015 6:12:45 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 12061 ms
編輯:
我嘗試了@VladMihalCea的建議:
@ManyToOne
@MapsId("hppid")
public TEL getReference(){return reference;}
在ED.java中,但是出現了相同的錯誤。 然后,我嘗試了他的其他建議:
@ManyToOne
@JoinColumn(name = "ref_hppid")
public TEL getReference(){return reference;}
在ED.Java中,但未對TEL.java或任何其他文件進行任何更改。 這也給出了相同的堆棧跟蹤。
我是否需要對TEL.java進行其他更改? 我還能嘗試什么?
Ed
類從BaseEntity
繼承hppid
列,然后使用多對一關聯復制它:
@ManyToOne
@JoinColumn(name = "hppid")
public TEL getReference(){return reference;}
public void setReference(TEL ref){reference = ref;}
如果FK是PK的補充,則只需將其重命名為ref_hppid
@JoinColumn(name = "ref_hppid")
如果希望PK和FK共享同一列,則需要使用@MapsId
:
@ManyToOne @MapsId("hppid") public TEL getReference(){return reference;}
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