what about Base64 encoding the byte[] in the POST/GET traversal so the encoding doesn't get tainted?
sun.misc.BASE64Encoder is included in the standard JDK. Just a thought... -Brian ----- Original Message ----- From: "Russell Smyth" <[EMAIL PROTECTED]> To: "'OJB Users List'" <[EMAIL PROTECTED]> Sent: Thursday, October 03, 2002 11:19 AM Subject: RE: How to obtain a unique OID for object recapture > But this method requires adding the GUID element to the object and > the database. This is not usable in our environment, as we are working > with essentially a "legacy" database. > > What I am looking for is a is a way to get a string from an existing > object that can be used to recapture it. Something that basically > encodes the class and its PK values. Identity->String->Identity would > work well - unfortunately the Identity.toString() does not create > something that can be used to reconstruct an Identity, and Identities > cannot be created by strings anyway. > > I did try Identity.serialize()->String->byte[]->Identity. This can be done, > but will not work in my environment as the String must be passed through > a web page and/or http POST/GET, and tye byte[]->String->byte[] trick > uses an encoding that would be damaged in the web-page traversal. > > I was using Torque and made some modifications to it's ComboKey class > that allowed such a Key->String->Key series, then just tacked on my > class type. It seems that Identities get me 90% of the way there! > > I am open to any other ideas... > > Russell > > > -----Original Message----- > > From: Thomas Mahler [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, October 03, 2002 3:05 AM > > To: OJB Users List > > Subject: Re: How to obtain a unique OID for object recapture > > > > > > Have a look at the OJB org.apache.ojb.broker.util.GUID class. > > > > There is a little testcase that shows how to use store these GUIDs as > > strings into the DB and reconstruct a GUID on loading from the DB. > > > > This is the entity class > > src/test/org/apache/ojb/broker/GuidTestEntity.java > > it uses a special FieldConversion to convert from GUID to > > STring (see in > > the repository_junit.xml) > > > > cheers, > > Thomas > > > > Russell Smyth wrote: > > > We have a need for the ability to extract from an object a > > unique ID (OID) > > > that can be > > > stored as a string, then used to recapture the original > > object. Essentially > > > we need a > > > String GUID for each object. > > > > > > Currently we are working with the PersistenceBroker.I had > > originally thought > > > we could > > > use the Identity class, but there appears to be no way to > > reconstitute an > > > Identity > > > from it's stringified (toString) representation. > > > > > > Does anyone have any suggestions on a way to get where I am > > trying to get? > > > > > > Thanks all > > > Russell > > > > > > -- > > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > > > > > > > > > > > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
