JpaRepository Not supported for DML operations [delete query]

Question

I have written a query to delete some objects in my interface extending JPaRepository, but when I execute the query it throws an exception! Can anyone explain it for me?

Query:

public interface LimitRepository extends JpaRepository<CLimit, Long> {    @Query("delete from CLimit l where l.trader.id =:#{#trader.id}")   void deleteLimitsByTrader(@Param("trader") CTrader trader);  } 

I got this error, can anyne Please, explain this for me, and thank you all :)

Exception:

  org.hibernate.hql.internal.QueryExecutionRequestException: Not supported for DML operations [delete from com.query.domain.CLimit l where l.trader.id =:__$synthetic$__1]       at org.hibernate.hql.internal.ast.QueryTranslatorImpl.errorIfDML(QueryTranslatorImpl.java:318)       at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:369)       at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:236)       at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1300)       at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103)       at org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:573)       at org.hibernate.jpa.internal.QueryImpl.getSingleResult(QueryImpl.java:495)       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)       at java.lang.reflect.Method.invoke(Method.java:498)       at org.springframework.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:364)       at com.sun.proxy.$Proxy98.getSingleResult(Unknown Source)       at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:206)       at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:78)       at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:102)       at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:92)       at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:482)       at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:460)       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)       at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61)       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)       at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)       at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)       at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)       at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)       at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)       at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)       at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)       at com.sun.proxy.$Proxy88.deleteLimitsByTrader(Unknown Source)       at com.query.service.impl.LimitServiceImpl.deleteLimitsByTrader(LimitServiceImpl.java:138)       at com.query.controller.UserController.deleteUser(UserController.java:96)       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)       at java.lang.reflect.Method.invoke(Method.java:498)       at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)       at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)       at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)       at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)       at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)       at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)       at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)       at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)       at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)       at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:893)       at javax.servlet.http.HttpServlet.service(HttpServlet.java:656)       at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)       at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)       at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)       at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)       at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:48)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158)       at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)       at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)       at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:133)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91)       at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)       at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213)       at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)       at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)       at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:221)       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)       at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)       at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)       at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)       at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)       at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)       at java.lang.Thread.run(Thread.java:745) 

Answer 1

Try this:

public interface LimitRepository extends JpaRepository<CLimit, Long> {    @Transactional   @Modifying   @Query("delete from CLimit l where l.trader.id =:#{#trader.id}")   void deleteLimitsByTrader(@Param("trader") CTrader trader);  } 

Whenever you are trying to modify a record in db, you have to mark it @Transactional as well as @Modifying, which instruct Spring that it can modify existing records.

The modifying queries can only use void or int/Integer as return type, otherwise it will throw an exception.