Question

我使用Grails 2.3.7。我的域类产品：

class Product {
    static belongsTo = [firmData: Firm_data]

    String name
    SectorType sectorType
    Measure measure
    Float soldProducts
    Float percentOfIncome
    Float percentOfExpense

    static constraints = {
        name blank:false, unique: 'firmData'
        percentOfIncome (range: 0..100, validator: {value, object ->
            def products = Product.findAllByFirmData(object.firmData)
            def sumOfIncome = (products?.percentOfIncome?.sum() ?: 0) + object.percentOfIncome
            print sumOfIncome
            return (sumOfIncome <= 100)
        })
        percentOfExpense (range: 0..100, validator: {value, object ->
            def products = Product.findAllByFirmData(object.firmData)
            def sumOfExpense = (products?.percentOfExpense?.sum() ?: 0) + object.percentOfExpense
            print sumOfExpense
            return (sumOfExpense <= 100)
        })
    }
}

我想确保下一个添加的Product，它也属于指定的Firm_data firmData，不会超过值100（当总结选定Firm_data的所有产品实例时）的值：{{ 1}}或percentOfIncome。

我在执行Bootstrap时尝试添加初始数据时遇到错误：

percentOfExpense

它在第14:14:21,127 ERROR AssertionFailure: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session) org.hibernate.AssertionFailure: null id in com.example.Product entry (don't flush the Session after an exception occurs) at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:82) at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:190) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:147) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58) at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1185) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1709) at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347) at org.codehaus.groovy.grails.orm.hibernate.metaclass.FindAllByPersistentMethod$1.doInHibernate(FindAllByPersistentMethod.java:113) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406) at org.springframework.orm.hibernate3.HibernateTemplate.executeFind(HibernateTemplate.java:343) at org.codehaus.groovy.grails.orm.hibernate.metaclass.FindAllByPersistentMethod.doInvokeInternalWithExpressions(FindAllByPersistentMethod.java:73) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractClausedStaticPersistentMethod.doInvokeInternal(AbstractClausedStaticPersistentMethod.java:527) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractClausedStaticPersistentMethod.doInvokeInternal(AbstractClausedStaticPersistentMethod.java:401) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractStaticPersistentMethod.invoke(AbstractStaticPersistentMethod.java:79) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractStaticPersistentMethod.invoke(AbstractStaticPersistentMethod.java:72) at org.grails.datastore.gorm.finders.FinderMethod$invoke$0.call(Unknown Source) at org.grails.datastore.gorm.GormStaticApi$_methodMissing_closure2.doCall(GormStaticApi.groovy:102) at org.grails.datastore.gorm.GormStaticApi$_methodMissing_closure2.call(GormStaticApi.groovy) at org.codehaus.groovy.runtime.metaclass.ClosureStaticMetaMethod.invoke(ClosureStaticMetaMethod.java:59) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.invoke(StaticMetaMethodSite.java:43) at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.call(StaticMetaMethodSite.java:88) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45) at org.codehaus.groovy.runtime.callsite.StaticMetaClassSite.call(StaticMetaClassSite.java:55) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at com.example.Product$__clinit__closure1_closure2.doCall(Product.groovy:24) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1086) at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:910) at groovy.lang.Closure.call(Closure.java:411) at com.example.Product$__clinit__closure1_closure2.call(Product.groovy) at org.codehaus.groovy.grails.validation.ValidatorConstraint.processValidate(ValidatorConstraint.java:85) at org.codehaus.groovy.grails.validation.AbstractConstraint.validate(AbstractConstraint.java:107) at org.codehaus.groovy.grails.validation.ConstrainedProperty.validate(ConstrainedProperty.java:960) at org.codehaus.groovy.grails.validation.GrailsDomainClassValidator.validatePropertyWithConstraint(GrailsDomainClassValidator.java:209) at org.codehaus.groovy.grails.validation.GrailsDomainClassValidator.validate(GrailsDomainClassValidator.java:79) at org.codehaus.groovy.grails.orm.hibernate.validation.HibernateDomainClassValidator.validate(HibernateDomainClassValidator.java:65) at org.codehaus.groovy.grails.validation.GrailsDomainClassValidator.validate(GrailsDomainClassValidator.java:118) at org.codehaus.groovy.grails.orm.hibernate.metaclass.ValidatePersistentMethod.doInvokeInternal(ValidatePersistentMethod.java:119) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractDynamicPersistentMethod.invoke(AbstractDynamicPersistentMethod.java:63) at org.codehaus.groovy.grails.orm.hibernate.AbstractHibernateGormValidationApi.validate(AbstractHibernateGormValidationApi.groovy:57) at com.example.Product.validate(Product.groovy) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener$8.call(ClosureEventListener.java:362) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener$8.call(ClosureEventListener.java:334) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener.doWithManualSession(ClosureEventListener.java:327) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener.onPreInsert(ClosureEventListener.java:334) at org.codehaus.groovy.grails.orm.hibernate.EventTriggeringInterceptor.onPreInsert(EventTriggeringInterceptor.java:153) at org.codehaus.groovy.grails.orm.hibernate.EventTriggeringInterceptor.onPersistenceEvent(EventTriggeringInterceptor.java:79) at org.grails.datastore.mapping.engine.event.AbstractPersistenceEventListener.onApplicationEvent(AbstractPersistenceEventListener.java:47) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:96) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.publishEvent(ClosureEventTriggeringInterceptor.java:159) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.onPreInsert(ClosureEventTriggeringInterceptor.java:120) at org.hibernate.action.EntityIdentityInsertAction.preInsert(EntityIdentityInsertAction.java:160) at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:65) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.performSaveOrReplicate(ClosureEventTriggeringInterceptor.java:246) at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.onSaveOrUpdate(ClosureEventTriggeringInterceptor.java:104) at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673) at org.codehaus.groovy.grails.orm.hibernate.metaclass.SavePersistentMethod$1.doInHibernate(SavePersistentMethod.java:58) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339) at org.codehaus.groovy.grails.orm.hibernate.metaclass.SavePersistentMethod.performSave(SavePersistentMethod.java:56) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractSavePersistentMethod.doInvokeInternal(AbstractSavePersistentMethod.java:215) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractDynamicPersistentMethod.invoke(AbstractDynamicPersistentMethod.java:63) at org.codehaus.groovy.grails.orm.hibernate.HibernateGormInstanceApi.save(HibernateGormInstanceApi.groovy:195) at com.example.Product.save(Product.groovy) at com.example.Product$save.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at com.example.ProductService.$tt__createTestProducts(ProductService.groovy:21) at com.example.ProductService$_createTestProducts_closure1.doCall(ProductService.groovy) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1086) at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:910) at groovy.lang.Closure.call(Closure.java:411) at com.example.ProductService$_createTestProducts_closure1.call(ProductService.groovy) at groovy.lang.Closure.call(Closure.java:427) at com.example.ProductService$_createTestProducts_closure1.call(ProductService.groovy) at org.codehaus.groovy.grails.orm.support.GrailsTransactionTemplate$1.doInTransaction(GrailsTransactionTemplate.groovy:62) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131) at org.codehaus.groovy.grails.orm.support.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:59) at com.example.ProductService.createTestProducts(ProductService.groovy) at com.example.ProductService$createTestProducts.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112) at BootStrap$_closure1.doCall(BootStrap.groovy:20) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1086) at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:910) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:960) at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:910) at groovy.lang.Closure.call(Closure.java:411) at groovy.lang.Closure.call(Closure.java:405) at grails.util.Environment.evaluateEnvironmentSpecificBlock(Environment.java:308) at grails.util.Environment.executeForEnvironment(Environment.java:301) at grails.util.Environment.executeForCurrentEnvironment(Environment.java:277) at org.codehaus.groovy.grails.commons.DefaultGrailsBootstrapClass.callInit(DefaultGrailsBootstrapClass.java:60) at org.codehaus.groovy.grails.web.context.GrailsConfigUtils.executeGrailsBootstraps(GrailsConfigUtils.java:75) at org.codehaus.groovy.grails.web.context.GrailsContextLoader.initWebApplicationContext(GrailsContextLoader.java:109) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) 14:14:21,141 ERROR GrailsContextLoader: Error initializing the application: null id in com.example.Product entry (don't flush the Session after an exception occurs) org.hibernate.AssertionFailure: null id in com.example.Product entry (don't flush the Session after an exception occurs) at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:82) at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:190) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:147) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58) at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1185) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1709) at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347) at org.codehaus.groovy.grails.orm.hibernate.metaclass.FindAllByPersistentMethod$1.doInHibernate(FindAllByPersistentMethod.java:113) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406) at org.springframework.orm.hibernate3.HibernateTemplate.executeFind(HibernateTemplate.java:343) at org.codehaus.groovy.grails.orm.hibernate.metaclass.FindAllByPersistentMethod.doInvokeInternalWithExpressions(FindAllByPersistentMethod.java:73) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractClausedStaticPersistentMethod.doInvokeInternal(AbstractClausedStaticPersistentMethod.java:527) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractClausedStaticPersistentMethod.doInvokeInternal(AbstractClausedStaticPersistentMethod.java:401) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractStaticPersistentMethod.invoke(AbstractStaticPersistentMethod.java:79) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractStaticPersistentMethod.invoke(AbstractStaticPersistentMethod.java:72) at org.grails.datastore.gorm.finders.FinderMethod$invoke$0.call(Unknown Source) at org.grails.datastore.gorm.GormStaticApi$_methodMissing_closure2.doCall(GormStaticApi.groovy:102) at org.grails.datastore.gorm.GormStaticApi$_methodMissing_closure2.call(GormStaticApi.groovy) at org.codehaus.groovy.runtime.metaclass.ClosureStaticMetaMethod.invoke(ClosureStaticMetaMethod.java:59) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.invoke(StaticMetaMethodSite.java:43) at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.call(StaticMetaMethodSite.java:88) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45) at org.codehaus.groovy.runtime.callsite.StaticMetaClassSite.call(StaticMetaClassSite.java:55) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at com.example.Product$__clinit__closure1_closure2.doCall(Product.groovy:24) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1086) at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:910) at groovy.lang.Closure.call(Closure.java:411) at com.example.Product$__clinit__closure1_closure2.call(Product.groovy) at org.codehaus.groovy.grails.validation.ValidatorConstraint.processValidate(ValidatorConstraint.java:85) at org.codehaus.groovy.grails.validation.AbstractConstraint.validate(AbstractConstraint.java:107) at org.codehaus.groovy.grails.validation.ConstrainedProperty.validate(ConstrainedProperty.java:960) at org.codehaus.groovy.grails.validation.GrailsDomainClassValidator.validatePropertyWithConstraint(GrailsDomainClassValidator.java:209) at org.codehaus.groovy.grails.validation.GrailsDomainClassValidator.validate(GrailsDomainClassValidator.java:79) at org.codehaus.groovy.grails.orm.hibernate.validation.HibernateDomainClassValidator.validate(HibernateDomainClassValidator.java:65) at org.codehaus.groovy.grails.validation.GrailsDomainClassValidator.validate(GrailsDomainClassValidator.java:118) at org.codehaus.groovy.grails.orm.hibernate.metaclass.ValidatePersistentMethod.doInvokeInternal(ValidatePersistentMethod.java:119) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractDynamicPersistentMethod.invoke(AbstractDynamicPersistentMethod.java:63) at org.codehaus.groovy.grails.orm.hibernate.AbstractHibernateGormValidationApi.validate(AbstractHibernateGormValidationApi.groovy:57) at com.example.Product.validate(Product.groovy) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener$8.call(ClosureEventListener.java:362) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener$8.call(ClosureEventListener.java:334) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener.doWithManualSession(ClosureEventListener.java:327) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventListener.onPreInsert(ClosureEventListener.java:334) at org.codehaus.groovy.grails.orm.hibernate.EventTriggeringInterceptor.onPreInsert(EventTriggeringInterceptor.java:153) at org.codehaus.groovy.grails.orm.hibernate.EventTriggeringInterceptor.onPersistenceEvent(EventTriggeringInterceptor.java:79) at org.grails.datastore.mapping.engine.event.AbstractPersistenceEventListener.onApplicationEvent(AbstractPersistenceEventListener.java:47) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:96) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.publishEvent(ClosureEventTriggeringInterceptor.java:159) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.onPreInsert(ClosureEventTriggeringInterceptor.java:120) at org.hibernate.action.EntityIdentityInsertAction.preInsert(EntityIdentityInsertAction.java:160) at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:65) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.performSaveOrReplicate(ClosureEventTriggeringInterceptor.java:246) at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93) at org.codehaus.groovy.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.onSaveOrUpdate(ClosureEventTriggeringInterceptor.java:104) at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673) at org.codehaus.groovy.grails.orm.hibernate.metaclass.SavePersistentMethod$1.doInHibernate(SavePersistentMethod.java:58) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339) at org.codehaus.groovy.grails.orm.hibernate.metaclass.SavePersistentMethod.performSave(SavePersistentMethod.java:56) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractSavePersistentMethod.doInvokeInternal(AbstractSavePersistentMethod.java:215) at org.codehaus.groovy.grails.orm.hibernate.metaclass.AbstractDynamicPersistentMethod.invoke(AbstractDynamicPersistentMethod.java:63) at org.codehaus.groovy.grails.orm.hibernate.HibernateGormInstanceApi.save(HibernateGormInstanceApi.groovy:195) at com.example.Product.save(Product.groovy) at com.example.Product$save.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at com.example.ProductService.$tt__createTestProducts(ProductService.groovy:21) at com.example.ProductService$_createTestProducts_closure1.doCall(ProductService.groovy) 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:606) at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1254) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1086) at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:910) at groovy.lang.Closure.call(Closure.java:411) at com.example.ProductService$_createTestProducts_closure1.call(ProductService.groovy) at groovy.lang.Closure.call(Closure.java:427) at com.example.ProductService$_createTestProducts_closure1.call(ProductService.groovy) at org.codehaus.groovy.grails.orm.support.GrailsTransactionTemplate$1.doInTransaction(GrailsTransactionTemplate.groovy:62) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131) at org.codehaus.groovy.grails.orm.support.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:59) at com.example.ProductService.createTestProducts(ProductService.groovy) at com.example.ProductService$createTestProducts.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112) at BootStrap$_closure1.doCall(BootStrap.groovy:20) [...]行崩溃。

如何解决？它为什么会发生？

Answer 1

我不知道验证器经常被执行。解决方案：

import org.hibernate.FlushMode

并且在自定义验证器中从db中检索数据时更改FlushMode（以避免不必要的刷新更改）：

percentOfIncome (range: 0..100, validator: {value, object ->
    def products = Product.findAllByFirmData(object.firmData, [flushMode: FlushMode.MANUAL] )
    def sumOfIncome = (products?.percentOfIncome?.sum() ?: 0) + object.percentOfIncome
    return (sumOfIncome <= 100)
        })

Grails自定义验证器错误

1 个答案: