hibernate-mapping

The context I have a simple association between two entities - Category and Email (NtoM). I'm trying to create web interface for browsing and managing them. I have a simple e-mail subscription edit form with list of checkboxes that represents categories, to which given e-mail belongs (I registered property editor for Set<Category> type). The problem Form displaying works well, including marking currently assigned categories (for existing e-mails). But no changes are saved to EmailsCategories table (NtoM mapping table, the one defined with @JoinTable - neither newly checked categories are added

I'm working on an application with Spring using SpringMVC, i'm encountering the following error and i don't know how to deal with it . now i have this message in Console : org.hibernate.TypeMismatchException: Provided id of the wrong type. Expected: class java.lang.Integer, got class java.lang.String at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:86) at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878) at org.hibernate.impl.SessionImpl.load(SessionImpl.java:795) at org.hibernate.impl.SessionImpl.load(SessionImpl.java:788) at sun.reflect

I am getting : org.hibernate.MappingException: Foreign key (FKBB979BF4266AA123:address [a_id])) must have same number of columns as the referenced primary key (address [p_id,a_id]) as I try to run the following (though incomplete) snippet : public static void main(String args[]) { Configuration config = new Configuration().configure(); SessionFactory sessFact = config.buildSessionFactory(); Session sess = sessFact.openSession(); Transaction trans = sess.beginTransaction(); } The hibernate mapping xml is shown below : <class name="pojo.Person" table="person"> <id column="p_id" name="personID">

SELECT emp.employeeId, emp.employeeFirstName, comp.companyname, dept.departmentname FROM Employeetable emp, Companytable comp, departmenttable dept WHERE emp.employeeCompanyId=comp.companyId AND emp.EmployeeDepartmentID=dept.DepartmentID; The employeetable hbm file: <sql-query name="callrealtimeprocedure"> <return alias="employeetable" class="com.AdiSys.eRMS.entity.Employeetable"/> <return-join alias="companytable" property="com.AdiSys.eRMS.entity.Employeetable"/> <return-join alias="companytable" property="com.AdiSys.eRMS.entity.Employeetable"/> </sql-query> The employeetable pojo:

We are using MS-SQL ,Oracle and mysql as our database. We have used hibernate annotations to create tables, in the annotation class file we have declared column definition as @Column(name="UCAALSNO",nullable=false,columnDefinition="nvarchar(20)") and this works fine for MS-SQL. But when it comes to Oracle nvarchar throws an exception as oracle supports only nvarchar2 and Mysql only supports nchar()(max length=255) How to create annotation file to support datatype nvarchar for three databases. 来源： https://stackoverflow.com/questions/23774474/nvarchar-in-sql-oracle-and-mysql-in-hibernate

Sorry to bother - perhaps this is a very simple question - but for some reason the version below fails to get parsed, whereas the version with set works fine. In fact, if I just take the set version and replace set with list I get: nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from invalid mapping Thank you Misha <!-- bi-directional one-to-many association to SpreadsheetImportTemplateColumn --> <list name="columns"> <!-- <set name="columns" lazy="false" inverse="true" cascade="all-delete-orphan" sort="natural" order-by="voided asc, preferred desc,