Thank you Kevin. I will follow the documentation and give a try. Thanks, Sai
On Thu, Jul 7, 2011 at 5:28 PM, Kevin Sutter <[email protected]> wrote: > The LifeCycle events are actually associated with the Entity class. You > have the option of defining your callbacks inline in your Entity class, or > you can define a separate callback class and reference that in your Entity > definition. When your defined callback methods are invoked, you will have > access to your Entity instance and then you can modify the fields as needed > for encryption/decryption. > > The doc link provides more information and examples on how to define these > callbacks. > > Kevin > > On Thu, Jul 7, 2011 at 3:20 PM, Saibabu Vallurupalli < > [email protected]> wrote: > > > Hi Kevin, > > > > Thank you for the prompt response. I am sure the below workaround should > > work for me. > > Where do I need to add these LifeCycle callbacks? I have a model class in > > James source for the field I am trying to Encrypt/Decrypt as shown below: > > > > ********* > > public class JPAMessage extends AbstractJPAMessage { > > > > /** The value for the body field. Lazy loaded */ > > /** We use a max length to represent 1gb data. Thats prolly overkill, > > but who knows */ > > @Basic(optional = false, fetch = FetchType.LAZY) > > @Column(name = "MAIL_BYTES", length = 1048576000, nullable = false) > > @Lob private byte[] *body*; > > > > // methods related to this class getter and creator...here... > > } > > ******** > > > > "body" is the attribute I have to work with. So, Is this correct location > > to > > add these life cycle methods? > > > > Please advice. > > > > Thanks, > > Sai > > > > > > On Thu, Jul 7, 2011 at 2:56 PM, Kevin Sutter <[email protected]> wrote: > > > > > Hi Sai, > > > JIRA openjpa-763 is a new feature request. Nobody has found the time > to > > > dive into this request. It probably is not that difficult to architect > > and > > > implement -- it's just a matter of time. > > > > > > As the text of the JIRA indicates, you could do a poor-man's > > implementation > > > by using the LifeCycle callbacks [1]. During the prePersist and > > preUpdate > > > callbacks, you could encrypt the contents of the mail message. And, > > during > > > the postLoad callback, you could decrypt the contents of the mail > > message. > > > Would that work for your situation? > > > > > > Thanks, > > > Kevin > > > > > > [1] > > > > > > > > > http://openjpa.apache.org/builds/latest/docs/manual/manual.html#jpa_overview_pc_callbacks > > > > > > On Thu, Jul 7, 2011 at 9:05 AM, Saibabu Vallurupalli < > > > [email protected]> wrote: > > > > > > > Hi, > > > > > > > > I am using Apache James and we have a requirement to Encrypt and > > Decrypt > > > > the > > > > email message body while storing to Database. In this process, I > > started > > > > exchanging emails with James development team and they have pointed > me > > to > > > > the JIRA ticket# OPENJPA-763. > > > > It will be really helpful if this issue can be fixed or please advise > > me > > > > with some suggestions on how to handle column level > > > Encryption/Decryption. > > > > > > > > Thank you, > > > > Sai > > > > > > > > > >
