[OFBiz] Dev - UniqueId field-type in GenericDelegator?

[Adrian Crum]

David E. Jones wrote:
> One nice thing about this is that it would be possible to write a 
> routine that finds a GenericValue by its unique ID by going through all 
> entity definitions and finding those with a single PK that is a uniqueId 
> type, and then doing a findByPrimaryKey on that entity to see if it 
> matches, and return the first one it finds... Might be a nice way to 
> validate certain things...

It seems to me that would be the method used by the unique value service 
to insure that a new value is truly unique.


> On Sep 22, 2004, at 3:32 PM, Adam Heath wrote:
> 
>> GenericDelegator has a feature, to get a serial number from a
>> SequenceValueItem.  This is create, but produces easily-guessable
>> ever-increasing numbers.
>>
>> What I propose(and will implement), is an additional feature, that 
>> allows for
>> unique-ids.  An entity will be created to store these, and a new field 
>> type
>> will be created as well.  A second stage of development will 
>> auto-create a
>> relation from each field that has this type, to the UniqueId entity 
>> table.
>>
>> Also, a few sub tables could be used, to move unused uniqueids from 
>> the active
>> table, into a pool.  Or, just a semi-random combination of host-ip, 
>> timestamp,
>> and sequence number should be used.
>>
>> Any thoughts on this?
>>
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> 
> 
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