Я портирую из Hibernate. Что не так с функцией SIZE в выражении JPQL (при условии, что сопоставления верны)?:
SELECT NEW de.poyry.pqgenerator.view.PqListItem(
pq.id,
pq.name,
pq.submissionDate,
pe.firstName,
pe.lastName,
SIZE(pa))
FROM Prequalification pq
JOIN pq.user us
JOIN us.person pe
LEFT JOIN pq.partnerships pa
LEFT JOIN pa.company co
GROUP BY pq.id
Вот подпись конструктора (единственный конструктор):
public PqListItem(Integer id, String name, Date submissionDate,
String ownerFirstName, String ownerLastName,
Integer numPartnerships)
Результат запроса:
Caused by: Exception [EclipseLink-8023] (Eclipse Persistence Services - 2.3.0.v20110604-r9504): org.eclipse.persistence.exceptions.JPQLException
Exception Description: Syntax error parsing the query [^^...].
Internal Exception: org.eclipse.persistence.internal.libraries.antlr.runtime.EarlyExitException
at org.eclipse.persistence.exceptions.JPQLException.syntaxError(JPQLException.java:352)
at org.eclipse.persistence.internal.jpa.parsing.jpql.JPQLParser.handleRecognitionException(JPQLParser.java:354)
at org.eclipse.persistence.internal.jpa.parsing.jpql.JPQLParser.addError(JPQLParser.java:246)
at org.eclipse.persistence.internal.jpa.parsing.jpql.JPQLParser.reportError(JPQLParser.java:363)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.pathExpression(JPQLParser.java:2894)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.collectionValuedPathExpression(JPQLParser.java:2624)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.size(JPQLParser.java:7660)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.functionsReturningNumerics(JPQLParser.java:6710)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.arithmeticPrimary(JPQLParser.java:4762)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.arithmeticFactor(JPQLParser.java:4660)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.arithmeticTerm(JPQLParser.java:4546)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.simpleArithmeticExpression(JPQLParser.java:4462)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.scalarExpression(JPQLParser.java:4834)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.constructorItem(JPQLParser.java:1980)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.constructorExpression(JPQLParser.java:1849)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.selectExpression(JPQLParser.java:1300)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.selectItem(JPQLParser.java:1169)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.selectClause(JPQLParser.java:1081)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.selectStatement(JPQLParser.java:359)
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.document(JPQLParser.java:281)
at org.eclipse.persistence.internal.jpa.parsing.jpql.JPQLParser.parse(JPQLParser.java:134)
at org.eclipse.persistence.internal.jpa.parsing.jpql.JPQLParser.buildParseTree(JPQLParser.java:95)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:215)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:190)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:142)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:126)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1475)
... 139 more
Caused by: org.eclipse.persistence.internal.libraries.antlr.runtime.EarlyExitException
at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.pathExpression(JPQLParser.java:2882)
... 161 more
Кажется, что SIZE(pa)
вызывает проблемы. При переходе на SIZE(pq.partnerships)
я получаю:
Caused by: Exception [EclipseLink-6137] (Eclipse Persistence Services - 2.3.0.v20110604-r9504): org.eclipse.persistence.exceptions.QueryException
Exception Description: An Exception was thrown while executing a ReportQuery with a constructor expression: java.lang.NoSuchMethodException: de.poyry.pqgenerator.view.PqListItem.<init>(java.lang.Integer, java.lang.String, java.util.Date, java.lang.String, java.lang.String, int)
Query: ReportQuery(referenceClass=Prequalification jpql="SELECT NEW de.poyry.pqgenerator.view.PqListItem(pq.id, pq.name, pq.submissionDate, pe.firstName, pe.lastName, SIZE(pq.partnerships)) FROM Prequalification pq JOIN pq.user us JOIN us.person pe LEFT JOIN pq.partnerships pa LEFT JOIN pa.company co GROUP BY pq.id")
Default FetchGroup(){id, partnerships, submissionDate, nodes, designSheets, name, statuses, group, user, tendering, isLocked}
at org.eclipse.persistence.exceptions.QueryException.exceptionWhileUsingConstructorExpression(QueryException.java:494)
at org.eclipse.persistence.queries.ConstructorReportItem.initialize(ConstructorReportItem.java:188)
at org.eclipse.persistence.queries.ReportQuery.prepare(ReportQuery.java:1044)
at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:598)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.checkPrepare(ObjectLevelReadQuery.java:839)
at org.eclipse.persistence.queries.DatabaseQuery.prepareCall(DatabaseQuery.java:1719)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:268)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:190)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:142)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:126)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1475)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1497)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.createQuery(EntityManagerWrapper.java:468)
at de.poyry.pqgenerator.service.PqService.findAllPqs(PqService.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5366)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5338)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5326)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214)
... 106 more
Похоже, не происходит автобокс? Тип последнего параметра конструктора - Integer. Странно, должно работать ИМО.
Может кто-нибудь помочь, пожалуйста? Я использую EclipseLink 2.3.2 на GlassFish 3.1.1.
Как правильно определить количество партнерств в запросе? Что здесь определяет JPA?