Hi All,
I am using one to many mapping and trying to store few records. I am using Spring 3 with Hibernate 3.
Mapping 
Code:
# <?xml version="1.0"?>  
# <!DOCTYPE hibernate-mapping PUBLIC  
#         "-//Hibernate/Hibernate Mapping DTD 3.0//EN"  
#         "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">  
#   
# <hibernate-mapping>  
#       
#   <class name="myexample.Research" table="***">  
#     <id name="researchId" column="RESEARCH_ID">  
#         <generator class="native"/>  
#     </id>  
#   <property name="a" column="a"></property>  
#   <set name="researchAttach" cascade="all" lazy="false">  
#     <key column="RESEARCH_ID" not-null="true"/>  
#     <one-to-many class="myexample.ResearchAttachment"/>  
#  </set>  
# </class>  
# <class name="com.aexp.forms.classes.ResearchAttachment" table="***">  
#     <id name="attachID" column="RESEARCH_ATTACH_ID">  
#         <generator class="native"/>  
#     </id>  
#   <property name="b" column="b"></property>  
#     
# </class>  
# </hibernate-mapping>  
When I execute this example . Only the first object "test attachment 111" gets inserted in the database.
The second one "test attachment 222" does not get inserted in the database.
Code:
# Set<ResearchAttachment> reslist = new TreeSet<ResearchAttachment>();  
#             ResearchAttachment att1 = new ResearchAttachment();  
#             att1.setAttachName("test attachment 111");  
#             ResearchAttachment att2 = new ResearchAttachment();  
#             att2.setAttachName("test attachment222");  
#             reslist.add(att1);  
#             reslist.add(att2);  
#               
#             int i = 101;  
#             System.out.println("here1");  
#             Research r = new Research();  
#             Research reas = (Research) dao.getFormByIDService(r,i);  
#             System.out.println("count="+reas.getClient());  
#             System.out.println("here5");  
#             reas.setClient("yey ad got ha ha ha i did it");  
#             reas.setAdvertiser("epicurean");  
#         reas.setResearchAttach(reslist);  
# dao.saveOrUpdateService(reas);  
Code:
#  public void saveOrUpdateService(T objectType) {  
#         formsDao.saveOrUpdateObject(objectType);  
#     }  
Code:
# public void saveOrUpdateObject(T objectType) throws DataAccessException {  
#         this.hibernateTemplate.saveOrUpdate(objectType);  
# }  
Thanks