one-to-many relation with not-null attribute on key element ----------------------------------------------------------- Key: HBX-446 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-446 Project: Hibernate Tools Issue Type: Bug Components: hbm2java Environment: 3.x Reporter: Sreeram Katta Priority: Critical Fix For: 3.2.2 one-to-many relation with not-null attribute on key element is throwing below error when I run the hbm2java tool. I have a base class with a joined-subclass and the joined subclass has one-to-many relationship with another class. The one-to-many uses a list. When I specify not-null attribute on the key element in the relationship I get the below error. If I remove it I don't get this error. If I let the key stay not-null, during run time persistence fails. So I had to revert the mapping file at runtime for the persistence to go fine. It is only the tool that is misbehaving. ----------------> Error org.hibernate.tool.hbm2x.ExporterException: Error while processing t emplate pojo/javaclass.vm at org.apache.tools.ant.Task.perform(Task.java:373) at org.apache.tools.ant.Target.execute(Target.java:341) at org.apache.tools.ant.Target.performTasks(Target.java:369) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) at org.apache.tools.ant.Project.executeTarget(Project.java:1185) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40) at org.apache.tools.ant.Project.executeTargets(Project.java:1068) at org.apache.tools.ant.Main.runBuild(Main.java:668) at org.apache.tools.ant.Main.startAnt(Main.java:187) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67) Caused by: org.hibernate.tool.hbm2x.ExporterException: Error while processing template pojo/javaclass.vm at org.hibernate.tool.hbm2x.TemplateHelper.processTemplate(TemplateHelper.java:89) at org.hibernate.tool.hbm2x.POJOExporter.runVelocity(POJOExporter.java:78) at org.hibernate.tool.hbm2x.POJOExporter.exportPersistentClass(POJOExporter.java:61) at org.hibernate.tool.hbm2x.POJOExporter.start(POJOExporter.java:111) at org.hibernate.tool.ant.GeneratorTask.execute(GeneratorTask.java:33) at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:115) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) ----------------- mapping files -----------> Base class <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" > <hibernate-mapping package="test.resources.core"> <class name="Resource" table="Resource" polymorphism="explicit" > <id name="Id" type="integer" column="resourceId" > <meta attribute="use-in-equals">true</meta> <generator class="hilo"> <param name="table">ResourceIdTracker</param> <param name="column">resourceId</param> </generator> </id> <property name="ResourceName" column="resourceName" type="string" not-null="true" length="80" /> <property name="ResourceDescription" column="resourceDescription" type="string" not-null="true" length="255" /> <property name="ResourceTypeId" column="resourceTypeId" type="integer" not-null="true" length="10" /> <property name="CreatedBy" column="createdBy" type="integer" not-null="true" length="10" /> <property name="CreatedTime" column="createdTime" type="timestamp" not-null="true" length="23" /> <property name="LastUpdatedBy" column="lastUpdatedBy" type="integer" not-null="true" length="10" /> <property name="LastUpdatedTime" column="lastUpdatedTime" type="timestamp" not-null="true" length="23" /> <property name="Deleted" column="deleted" type="string" not-null="true" length="1" /> <set name="ResourcePermissions" table="ResourcePermission" inverse="true"> <key column="resourceId" not-null="true"/> <one-to-many class="ResourcePermission"/> </set> </class> </hibernate-mapping> --------------------> JOINED SUBCLASS <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" > <hibernate-mapping package="test.resources.chartbook"> <joined-subclass name="ChartDefinition" table="ChartDefinition" extends="test.resources.core.Resource" > <key column="chartDefinitionId"/> <property name="FromDate" column="fromDate" type="integer" not-null="false" length="10" /> <property name="ToDate" column="toDate" type="integer" not-null="false" length="10" /> <property name="Period" column="period" type="string" not-null="false" length="32" /> <property name="ViewType" column="viewType" type="string" not-null="false" length="32" /> <!-- This works but requires bidrecitional setting --> <one-to-one name="chartAxisDefinition" cascade="all-delete-orphan" class="ChartAxisDefinition"/> <!-- having a not-null attribute on key is thowing error while generating classes where as --> <!-- not having it is throwing an error while inserting --> <!-- for now removing while code generation and adding it back while run time --> <!-- NEED TO ADDRESS THIS --> <list name="ChartSeries" cascade="all-delete-orphan" inverse="false" lazy="false"> <key column="chartDefinitionId" not-null="true"/> <list-index column="position" /> <one-to-many class="ChartSeries"/> </list> </joined-subclass> </hibernate-mapping> --------------> ONE TO MANY TARGET <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" > <hibernate-mapping package="test.resources.chartbook"> <class name="ChartSeries" table="ChartSeries" > <id name="Id" type="integer" column="chartSeriesId" > <generator class="hilo"> <param name="table">ResourceIdTracker</param> <param name="column">resourceId</param> </generator> </id> <property name="Included" column="included" type="string" not-null="true" length="1" /> <property name="SelectorTreeNodePath" column="selectorTreeNodePath" type="string" not-null="false" length="1024" /> <property name="Attribute" column="attribute" type="string" not-null="false" length="50" /> <property name="ColumnName" column="columnName" type="string" not-null="false" length="255" /> <property name="Formula" column="formula" type="string" not-null="false" /> <property name="AxisLocation" column="axisLocation" type="string" not-null="true" length="32" /> <property name="Position" column="position" type="integer" not-null="true" length="10" insert="false" update="false" /> </class> </hibernate-mapping> -------------- ONE TO ONE TARGET <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" > <hibernate-mapping package="test.resources.chartbook"> <class name="ChartAxisDefinition" table="ChartAxisDefinition" > <id name="Id" type="integer" column="chartAxisDefinitionId" > <generator class="foreign"> <param name="property">ChartDefinition</param> </generator> </id> <property name="LeftAxisMin" column="leftAxisMin" type="java.lang.Double" not-null="true" length="15" /> <property name="LeftAxisMax" column="leftAxisMax" type="java.lang.Double" not-null="true" length="15" /> <property name="RightAxisMin" column="rightAxisMin" type="java.lang.Double" not-null="true" length="15" /> <property name="RightAxisMax" column="rightAxisMax" type="java.lang.Double" not-null="true" length="15" /> <property name="LeftAxisLabel" column="leftAxisLabel" type="string" not-null="true" length="32" /> <property name="RightAxisLabel" column="rightAxisLabel" type="string" not-null="true" length="32" /> <property name="ChartName" column="chartName" type="string" not-null="true" length="80" /> <one-to-one name="ChartDefinition" class="ChartDefinition" constrained="true"/> </class> </hibernate-mapping>