Hibernateアノテーションを使用して1対1の共有主キーマッピングを行うための例/チュートリアルをWeb上でかなり多く見ました。しかし、私が見たすべての例では、マッピングをオプションにすることはできないか、オプションの場合は主キー上に配置することはできないようです。CompanyテーブルとCompanyDocsテーブルの間に1対1の主キーマッピングがある次の状況があります。CompanyDocsテーブルは弱いエンティティです。つまり、Companyオブジェクトは存在しますが、最初からCompanyDocsエンティティがリンクされているとは限りませんが、後で作成される可能性があります。
Companyオブジェクトは外部アプリケーションによって作成および永続化されますが、Hibernateアプリケーションを使用して更新されます。これは私が持っているものです..(これは実際の例ではないことに注意してください)
Company table
- companyid (Pk)
- name
- desc
- test1
- test2
CompanyDocs table
- docsid (Pk) (Fk)
- detail1
- detail2
- detail3
モデルクラス
Company.java
@Entity
@Table(name = "company", schema = "public")
public class Company implements java.io.Serializable {
private String companyid
private CompanyDocs companydocs;
@Id
@Column(name = "companyid", unique = true, nullable = false, length = 20)
public String getCompanyid() {
return this.companyid;
}
public void setCompanyid(String companyid) {
this.companyid = companyid;
}
@OneToOne(fetch = FetchType.LAZY, mappedBy = "companydocs")
@NotFound(action = NotFoundAction.IGNORE)
@PrimaryKeyJoinColumn(name = "companyid", referencedColumnName = "docsid")
public CompanyDocs getCompanydocs() {
return this.companydocs;
}
public void setCompanydocs(CompanyDocs companydocs) {
this.companydocs = companydocs;
}
}
CompanyDocs.java
@Entity
@Table(name = "companydocs", schema = "public")
public class CompanyDocs implements java.io.Serializable {
private String docsid;
private Company company;
@GenericGenerator(name = "generator", strategy = "foreign", parameters =
@Parameter(name = "property", value = "company"))
@Id
@GeneratedValue(generator = "generator")
@Column(name = "docsid", unique = true, nullable = false, length = 20)
public String getDocsid() {
return this.docsid;
}
public void setDocsid(String docsid) {
this.docsid = docsid;
}
@PrimaryKeyJoinColumn(name = "docsid", referencedColumnName = "companyid")
@OneToOne(fetch = FetchType.LAZY)
@NotFound(action = NotFoundAction.IGNORE)
public Company getCompany() {
return this.company;
}
public void setCompany(Company company) {
this.company = company;
}
CompanyDAOImpl.java
public Company getCompany(String companyid) {
Criteria c = sessionFactory.getCurrentSession().createCriteria(Company.class)
.add(Restrictions.eq("companyid", companyid));
try {
return (Company) c.list().get(0);
}
catch(IndexOutOfBoundsException e) {
logger.info("GetCompany threw exception " +e);
return null;
}
}
public void storeCompany(Company c) {
sessionFactory.getCurrentSession().saveOrUpdate(c);
}
public void storeCompanyDocs(CompanyDocs cd) {
sessionFactory.getCurrentSession().saveOrUpdate(cd);
}
public CompanyDocs getCompanyDocs(String companyid) {
try{
Criteria c = sessionFactory.getCurrentSession()
.createCriteria(CompanyDocs.class).add(Restrictions.eq("companyid", companyid));
logger.info("getCompanyDocsreturned"+c.list().get(0));
return (CompanyDocs)c.list().get(0);
}catch(IndexOutOfBoundsException e){
logger.info("getCompanyDocs threw exception " +e);
return null;
}
}
CompanyServiceImpl.java
@Transactional(propagation = Propagation.REQUIRED, readOnly= false,
noRollbackFor=IllegalArgumentException.class)
@ExceptionHandler(NullPointerException.class)
public CompanyResponse updateCompany(Service parameters) throws SOAPException {
LOG.info("In updateCompany");
Company c = companyDao.getCompany(parameters.getId());
//CompanyDocs cd = companyDao.getCompanyDocs(parameters.getId());
CompanyDocs cd = c.getCompanyDocs();
LOG.info("CompanyDocs object is:- " + cd);
if(cd == null)
{
cd = new CompanyDocs(parameters.getId());
c.setCompanyDocs(cd);
cd.setCompany(c);
LOG.info("CompanyDocs object created new :- " + cd);
companyDao.storeCompanyDocs(cd);
LOG.info("CompanyDocs object stored :- " + cd.getDocsid());
}
c.setDetail1();
c.setDetail2();
c.setDetail3();
.............
companyDao.storeCompany(c)
LOG.info("Stored Company");
LOG.info("CompanyService Response Return------:")
return new CompanyResponse();
}
私のログファイルはこれを印刷します。
2012-05-02 22:57:18,951 INFO [au.com.CompanyServiceImpl] - <In updateCompany>
2012-05-02 22:57:18,975 INFO [au.com.CompanyDAOImpl] - <getCompany returned
au.com.Company@2738ef1d>[au.com.CompanyServiceImpl] - <CompanyDocs object is:- null>
2012-05-02 22:57:18,991 INFO [au.com.CompanyServiceImpl] - <CompanyDocs object
created new :- au.com.CompanyDocs@373ee92>
2012-05-02 22:57:18,995 INFO [au.com.CompanyServiceImpl] - <CompanyDocs object
updated :- CO12345>
2012-05-02 22:57:19,338 INFO [au.com.CompanyDAOImpl] - <Stored Company >
2012-05-02 22:57:19,338 INFO [au.com.CompanyServiceImpl] - <CompanyService
Response Return------:>
2012-05-02 22:57:19,498 ERROR [org.hibernate.jdbc.AbstractBatcher] - <Exception
executing batch: >
org.hibernate.StaleStateException: Batch update returned unexpected row count from
update [0]; actual row count: 0; expected: 1 at
org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:61)
at
org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:46)
at org.hibernate.jdbc.BatchingBatcher.checkRowCounts(BatchingBatcher.java:68)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:168)
at org.hibernate.event.def.AbstractFlushingEventListener
.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.
onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at org.springframework.orm.hibernate3.HibernateTransactionManager.
doCommit(HibernateTransactionManager.java:656)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.
processCommit(AbstractPlatformTransactionManager.java:754)
at org.springframework.transaction.support.AbstractPlatformTransactionManager
.commit(AbstractPlatformTransactionManager.java:723)
at org.springframework.transaction.interceptor.TransactionAspectSupport
.commitTransactionAfterReturning(TransactionAspectSupport.java:393)
at org.springframework.transaction.interceptor.TransactionInterceptor
.invoke(TransactionInterceptor.java:120)
at org.springframework.aop.framework.ReflectiveMethodInvocation
.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.
invoke(JdkDynamicAopProxy.java:202)
at $Proxy28.login(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.
invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.cxf.service.invoker.AbstractInvoker.
performInvocation(AbstractInvoker.java:173)
at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:89)
at org.apache.cxf.jaxws.JAXWSMethodInvoker.invoke(JAXWSMethodInvoker.java:60)
at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:75)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.
run(ServiceInvokerInterceptor.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at org.apache.cxf.workqueue.SynchronousExecutor.
execute(SynchronousExecutor.java:37)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.
handleMessage(ServiceInvokerInterceptor.java:106)
at org.apache.cxf.phase.PhaseInterceptorChain.
doIntercept(PhaseInterceptorChain.java:255)
at org.apache.cxf.transport.ChainInitiationObserver.
onMessage(ChainInitiationObserver.java:113)
at org.apache.cxf.transport.servlet.ServletDestination.
invoke(ServletDestination.java:97)
at org.apache.cxf.transport.servlet.ServletController.
invokeDestination(ServletController.java:461)
at org.apache.cxf.transport.servlet.ServletController.
invoke(ServletController.java:188)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.
invoke(AbstractCXFServlet.java:148)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.
handleRequest(AbstractHTTPServlet.java:179)
at org.apache.cxf.transport.servlet.
AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:103)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.
service(AbstractHTTPServlet.java:159)
at org.apache.catalina.core.ApplicationFilterChain.
internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.
doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.
invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.
invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.
invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.
process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
2012-05-02 22:57:19,501
ERROR [org.hibernate.event.def.AbstractFlushingEventListener]
- <Could not synchronize database state with session>
@nonアノテーション、optional = false / trueを使用してみました。また、単方向マッピングを使用して、条件を使用してcompanydocsオブジェクトをロードしてみました。しかし、Hibernateは常に既存のCompanyのCompanyDocsオブジェクトを除外しているようです。
不思議なことに、これは、以前のバージョンのHibernateで作業していて、注釈の代わりにマッピングファイルを使用していたときに正常に機能するために使用されます。これは共有キーマッピングでしたが、単方向であったため、CompanyhbmファイルにはCompanyDocsオブジェクトのマッピングがありませんでした。アノテーションにhibernate3.3.1.GA.jarを使用しています。私の側で間違ったことはありますか、それとも新しいバージョンのHibernateではもう不可能ですか?