Of course. If the blob field type is used for a byte array or serialized object, it still works but it generates a warning that suggests the correct field type.
-Adrian --- On Sat, 6/26/10, Jacques Le Roux <jacques.le.r...@les7arts.com> wrote: > From: Jacques Le Roux <jacques.le.r...@les7arts.com> > Subject: Re: Discussion: New Field Types > To: dev@ofbiz.apache.org > Date: Saturday, June 26, 2010, 12:19 PM > Looks like a good idea to me. I > suppose you would keep backward compatibility? > > Jacques > > From: "Adrian Crum" <adrian.c...@yahoo.com> > > The blob field type is being used as a catch-all for > multiple binary types. Right now getting an object from a > blob field type > > could return a byte array, a deserialized Java object, > or a javax.sql.rowset.serial.SerialBlob object. There is no > way to know for > > sure what will be returned - the entity engine code > tries various methods until one works. > > > > I think it would be better to specify exactly what you > intend to store in a BLOB SQL type: a byte array, a > serialized Java object, > > or some unknown binary type. So, I propose that we add > two new field types: byte-array and object. Using Derby as > an example, this > > is what it would look like in fieldtypederby.xml: > > > > <field-type-def type="blob" sql-type="BLOB" > java-type="java.sql.Blob"></field-type-def> > > <field-type-def type="byte-array" sql-type="BLOB" > java-type="byte[]"></field-type-def> > > <field-type-def type="object" sql-type="BLOB" > java-type="java.lang.Object"></field-type-def> > > > > Getting an object from each field type would return > the respective Java object type. > > > > What do you think? > > > > -Adrian > > > > > > > > > > > > >