2014-09-03 54 views
1

从Grails 2.2.4迁移到2.4.3后,在条件查询中使用该属性时,具有名为applicationContext的属性的域类会引发异常。'applicationContext'在Grails 2.4.3中被禁止作为域属性名吗?

class WebResource { 
    String applicationContext 
} 

class ResourceService { 
    public WebResource getResourceByContext(String ctx) { 
    WebResource.withCriteria() { 
     eq('applicationContext', ctx) 
    } 
    } 
} 

到getResourceByContext(A调用)抛出一个异常:

用 '的applicationContext' 不允许的Grails 2.4.3名称
 
    org.hibernate.QueryException: could not resolve property: applicationContext of: org.mydomain.WebResource 
at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:83) 
     at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:77) 
     at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassPropertyTableNumber(AbstractEntityPersister.java:1995) 
     at org.hibernate.persister.entity.BasicEntityPropertyMapping.toColumns(BasicEntityPropertyMapping.java:61) 
     at org.hibernate.persister.entity.AbstractEntityPersister.toColumns(AbstractEntityPersister.java:1970) 
     at org.hibernate.loader.criteria.CriteriaQueryTranslator.getColumns(CriteriaQueryTranslator.java:518) 
     at org.hibernate.loader.criteria.CriteriaQueryTranslator.findColumns(CriteriaQueryTranslator.java:534) 
     at org.hibernate.criterion.SimpleExpression.toSqlString(SimpleExpression.java:82) 
     at org.hibernate.loader.criteria.CriteriaQueryTranslator.getWhereCondition(CriteriaQueryTranslator.java:417) 
     at org.hibernate.loader.criteria.CriteriaJoinWalker.(CriteriaJoinWalker.java:123) 
     at org.hibernate.loader.criteria.CriteriaJoinWalker.(CriteriaJoinWalker.java:92) 
     at org.hibernate.loader.criteria.CriteriaLoader.(CriteriaLoader.java:97) 
     at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1663) 
     at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:380) 
     at org.codehaus.groovy.grails.orm.hibernate.query.AbstractHibernateCriteriaBuilder.invokeMethod(AbstractHibernateCriteriaBuilder.java:1639) 
     at org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:907) 
     at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:884) 
     at org.grails.datastore.gorm.GormStaticApi$_withCriteria_closure11.doCall(GormStaticApi.groovy:304) 
     at sun.reflect.GeneratedMethodAccessor254.invoke(Unknown Source) 
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
     at java.lang.reflect.Method.invoke(Method.java:606) 
     at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90) 
     at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324) 
     at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207) 
     at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110) 
     at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016) 
     at groovy.lang.Closure.call(Closure.java:423) 
     at org.codehaus.groovy.runtime.ConvertedClosure.invokeCustom(ConvertedClosure.java:51) 
     at org.codehaus.groovy.runtime.ConversionHandler.invoke(ConversionHandler.java:81) 
     at com.sun.proxy.$Proxy29.doInSession(Unknown Source) 
     at org.grails.datastore.mapping.core.DatastoreUtils.execute(DatastoreUtils.java:302) 
     at org.grails.datastore.gorm.AbstractDatastoreApi.execute(AbstractDatastoreApi.groovy:37) 
     at org.grails.datastore.gorm.GormStaticApi.withCriteria(GormStaticApi.groovy:303) 
     at org.mydomain.WebResource.withCriteria(WebResource.groovy) 

是具有域属性?我无法在Grails发行说明,升级指南或JIRA中找到对此方案的引用。我已经通过重命名字段,GORM改变引用新名称解决此问题的工作:

class WebResource { 
    String appContext 
    appContext column: 'APPLICATION_CONTEXT' 
    public String getApplicationContext() { 
     return appContext 
    } 

    public void setApplicationContext(String c) { 
     appContext = c 
    } 
} 

回答

1

考虑到与Spring的ApplicationContext名称冲突我怀疑你已经找到了最好的答案已经 - 属性命名为别的东西并使用mapping定义来设置数据库列名称。我建议你不要添加getter/setter对,但直接在你的代码中使用属性名称appContext,因为Grails核心或插件中有很多可能的地方(我认为相当合理)假设名为applicationContext的属性是Spring对象而不是其他任何东西。

除非必须,否则不要反对约定。