AO - what happens when int Id's are exhausted?

AO ID are integers, as shown.

Out of curiosity, what happens to AO if you exhaust its postive ID range of 2,147,483,647, does it rollover and start using negatives or does the sky fall? Sure I could look at the source, but just maybe others might find this interesting?

2 answers

1 accepted

3 votes

The short answer is: I don't know. Good question. Maybe we could warn or do some check of some sort… What were you thinking should happen?

Do you have a concrete use case where you fear you might reach this limit?

In any case, nothing prevents you from using Long for you entity IDs. For example I know the GreenHopper developers defined their own Entity parent class as:

public interface Entity extends RawEntity<Long>
	public long getID();

This should give you some room up to 9,223,372,036,854,775,807 ;-)

Note that AO is capable of migrating int IDs to long IDs if necessary, however I would advise choosing the type that will suit your expected usage as soon as possible. Of course.

Hmm, yes, that seems like a good thing, thanks for the pointer. Given JIRA uses long types, wouldnt it be consistent to default AO objects to use them for ID's by default too, ints just stand out...

Well, int has been the default ID type for AO for a little while, so I didn't want to change that. Maybe I should have…

0 vote

Kudos to the AO developers if they have code that specifically addresses this situation. Anyway, it's likely that the database would die long before IDs are exhausted ;)

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