The identity element is the property (or properties) of the object that
uniquely identifies the object for the Data Managment server.
In general, it is the primary key column of the rows in the database that
the assembler is using. It has to be something about the data that does not
change. For instance, using 'lastname' as the identity property of a Person
record would be bad as this could change over the life of the record.
Also, see the documentation here:
http://livedocs.adobe.com/livecycle/es/sdkHelp/programmer/lcds/data_manage_intro_2.htmlRead the last paragraph - "Maintaing object identities".
http://livedocs.adobe.com/livecycle/es/sdkHelp/programmer/lcds/data_manage_config_3.htmlRead "Uniquely identifying data items"
Hope that helps.
--
Tom Jordahl
Adobe