This code maps a HashMap but I would like to do the same using annotations. Is it possible? Clould you help me?
Thaks in advance!!!

CrmCliente.java

public class CrmCliente extends PlmEntity implements IActionProvider, IORMBasicMetadataProvider {

private static IORMBasicMetadata metadata;
private String nombre;
private HashMap userCustomField = new HashMap();}


CrmCliente.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 22-jun-2010 17:12:58 by Hibernate Tools 3.2.4.GA -->
<hibernate-mapping>
<joined-subclass
name="com.divisoft.modules.crm.shared.data.mapping.db.hibernate.entity.CrmCliente"
table="Crm_Cliente"
extends="com.divisoft.lib.prolib.shared.data.mapping.db.hibernate.entity.PlmEntity">
<key column="id_cliente" />
<property name="nombre" type="string">
<column name="nombre"/>
</property>
<one-to-one name="userCustomField" entity-name="com.divisoft.modules.crm.shared.data.mapping.db.hibernate.entity.CrmClienteCustomUserProperties"
embed-xml="true" cascade="delete,all">
</one-to-one>
</joined-subclass>
</hibernate-mapping>

CrmClienteAux.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 28-abr-2010 10:34:06 by Hibernate Tools 3.2.4.GA -->
<hibernate-mapping>
<class entity-name="com.divisoft.modules.crm.shared.data.mapping.db.hibernate.entity.CrmClienteCustomUserProperties" table="Crm_ClienteAux">
<id name="id" type="int">
<column name="id" />
<generator class="foreign">
<param name="property">entidad</param>
</generator>
</id>
<one-to-one name="entidad"
class="com.divisoft.modules.crm.shared.data.mapping.db.hibernate.entity.CrmCliente"
constrained="true" cascade="all">
</one-to-one>
<property name="direccion" type="string">
<column name="direccion" />
</property>
</class>
</hibernate-mapping>

You cannot use directly HashMap, but you can use Map:


This is a basic way to use JPA annotations for Maps, and this kind of annotation triggers the creation of a JoinTable. It works for List and Set too.

The problem is that the HashMap has a non defined object (we don't have any java class). So "Crm_ClienteAux" table is dynamically created depending on object.
How can I do this with annotations?