No, the alternative there is to provide a server-side extension that encapsulates your business logic as an endpoint running inside of a tx.
Cheers Michael Am 02.12.2011 um 08:30 schrieb Dmytrii Nagirniak: > > On 02/12/2011, at 4:48 PM, Jim Webber wrote: > >> 1. Neo4j works as a standalone (or clustered) server which is accessible >> through the REST API. > > That's the point. There is not standalone version with native bindings. > You either run embedded and lock the whole database to the particular app, or > you go with REST that doesn't support transactions (batch != transaction)... > >> 2. Neo4j is ACID transactional with each HTTP request to the server being >> internally scoped in a single transaction. > Unfortunately it is not always enough, even when using batch API. > > Here is the use-case: > 1. Query for a nodes/rels. > 2. Run some custom logic on the client. > 3. Update nodes/rels appropriately. > > This is the most common way of using databases. And currently it is not > possible to wrap it in a transaction. > > So the only alternative in this case is to use native binding, which may not > be available to all. And means we are back at point 1. > > Do you see what I mean here? > It's a trade-off: ACID vs DB with multiple clients. > > > A way of doing transactions over REST would be nice. But it will be extremely > hard to implement due to the stateless nature of HTTP. > I can see something like this in API: > > POST /transaction?timeout=2 > # Returns the ID of the transaction for the future > > # then use the normal API... > > > PUT /transactions/1234/commit > # or > PUT /transactions/1234/rollback > # or > DESTROY /transactions/1234 > # or automatically rollback after 2 secs > > > But I am not sure this can work reliably and performant enough with HTTP. > > Cheers. > > > > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
