Hibernate - moving annotations from property (method) level to field level

Question

How do I generate hibernate domain classes from tables with annotations at field level? I used Hibernate Tools project and generated domain classes from the tables in the da

Answer 1

Here are the steps:

1. Allocate "hibernate-tools.jar" by perform a search within your eclipse folder For example, You will find it at C:\eclipse\plugins\org.hibernate.eclipse_3.4.1.xxx\lib\tools

2. Extract to a temp folder (WinRar can do this) For example, extract to [Your Project]\template

3. Under [Your Project]\template\pojo folder, create a file named "Ejb3FieldGetAnnotation.ftl"

   This file is actually a copy of "Ejb3PropertyGetAnnotation.ftl" but all of words "property" are replaced by "field" because this file will be placed in the a loop that iterates through all fields (instead of properties). I include the content of the file in this post

4. Remove property-level annotations: In file "PojoPropertyAccessors.ftl", remove or comment out

   <#include "GetPropertyAnnotation.ftl"/>
   

5. Add field-level annotations: In file "PojoFields.ftl", add

   <#include "Ejb3FieldGetAnnotation.ftl"/>
   ${pojo.getFieldModifiers(field)} ... 
   

6. When generate Java entities, select "Use Custom Templates" and specify the template folder. In this case, it will be [Your Project]\template

   ==================================================================================
   Ejb3FieldGetAnnotation.ftl
   ==================================================================================
   
   <#if ejb3>
   <#if pojo.hasIdentifierProperty()>
   <#if field.equals(clazz.identifierProperty)>
    ${pojo.generateAnnIdGenerator()}
   <#-- if this is the id property (getter)-->
   <#-- explicitly set the column name for this property-->
   
   
   
   <#if c2h.isOneToOne(field)>
   ${pojo.generateOneToOneAnnotation(field, cfg)}
   <#elseif c2h.isManyToOne(field)>
   ${pojo.generateManyToOneAnnotation(field)}
   <#--TODO support optional and targetEntity-->    
   ${pojo.generateJoinColumnsAnnotation(field, cfg)}
   <#elseif c2h.isCollection(field)>
   ${pojo.generateCollectionAnnotation(field, cfg)}
   <#else>
   ${pojo.generateBasicAnnotation(field)}
   ${pojo.generateAnnColumnAnnotation(field)}
   
   
   

Hope it work for you.