Re: [hibernate-dev] api/doc suggestions

> What is the equivalent way to do this in new metadata api: > > ``` > new Configuration().setProperty("hibernate.dialect", > "org.hibernate.dialect.H2Dialect") > .setProperty("hibernate.connection.url", > "jdbc:h2:./sakila") > .setProperty("hibernate.connection.username", > "sa") > .buildSessionFactory(); > ``` > > Just setup dialect, give connection info and get a > sessionfactory/entitymanager ? > > I found apis to start from a file containing those settings; but I > really just want a programmatic api > to use in batch script etc. without a need for external files. Agreed we should explore making the "frameworkless bootstrap" simpler; booting the ORM today requires some expertise, resulting in people to rely on other frameworks to do the job.

However, the possible configuration options we have today are significant; there's good reasons to have them so while an helper would be welcome, I don't expect we'll want to change or simplify the existing boot code, as it's working and doing a great job. This would rather provide a simple, limited alternative. It will be necessary to clarify that the "simple" alternative is also very limiting: for example I could see myself volunteering to create such a little toy, but don't expect it to work in modular environments, containers, pick up transaction managers, integrate with DI frameworks, allow for Datasource injection, etc. etc.. Ok?

A consequence of such limitations would be that runtime performance and efficiency would also be limited; let's be upfront about the intent in the API documentation. I can try toy with a POC but can't promise a quick turnaround on this one; not least I'd need Steve's blessing and review: - https://hibernate.atlassian.net/browse/HHH-13862 Please comment on the JIRA or send a PR if you have a more concrete idea or a draft.

> Here again, the ask is so we can educate and point people to use > statelessSession rather than dropping Hibernate fully and from that > api if needed go do `.doWork()` rather than refer to deprecated > `.connection()` Makes sense, I believe we should be able to do this quickly: - https://hibernate.atlassian.net/browse/HHH-13861 Andrea volunteered to have a look; assigned to him assuming it's straight forward; if it gets tricky we'll have to wait for Steve's opinion.