[keycloak-dev] JPA connections provider and multiple transaction support

[Stian Thorgersen]

Added Mongo connection provider as well, and moved the MongoStore stuff there:

  https://github.com/stianst/keycloak/blob/master/connections/mongo/src/main/java/org/keycloak/connections/mongo/DefaultMongoConnectionProvider.java
  https://github.com/stianst/keycloak/blob/master/connections/mongo/src/main/java/org/keycloak/connections/mongo/DefaultMongoConnectionFactoryProvider.java

Now neither the MongoModelProvider:

  https://github.com/stianst/keycloak/blob/master/model/mongo/src/main/java/org/keycloak/models/mongo/keycloak/adapters/MongoModelProviderFactory.java

Or the JpaModelProvider:

  https://github.com/stianst/keycloak/blob/master/model/jpa/src/main/java/org/keycloak/models/jpa/JpaModelProviderFactory.java

Has to deal with connections or transactions.

----- Original Message -----
> From: "Stian Thorgersen" <stian at redhat.com>
> To: "keycloak dev" <keycloak-dev at lists.jboss.org>
> Sent: Friday, 11 July, 2014 1:29:49 PM
> Subject: [keycloak-dev] JPA connections provider and multiple transaction	support
> 
> To prevent creating multiple EntityManager's for a single request I've added
> a JPAConnectionProvider that is used to share an EntityManager instance
> between multiple providers.
> 
>   https://github.com/stianst/keycloak/blob/master/connections/jpa/src/main/java/org/keycloak/connections/jpa/DefaultJpaConnectionProviderFactory.java
>   https://github.com/stianst/keycloak/blob/master/connections/jpa/src/main/java/org/keycloak/connections/jpa/DefaultJpaConnectionProvider.java
> 
> In the future we could consider adding support for multiple
> persistence-units, but for now I think we should have a limitation that all
> JPA providers use the same database/persistence-unit.
> 
> I've also added some very basic support to KeycloakSession so providers can
> enlist their transactions with the session:
> 
>   https://github.com/stianst/keycloak/blob/master/model/api/src/main/java/org/keycloak/models/KeycloakSession.java
>   https://github.com/stianst/keycloak/blob/master/model/api/src/main/java/org/keycloak/models/KeycloakTransactionManager.java
> 
> The idea being that a provider when used can enlist its transaction with the
> session.
> 
> I've not committed any of this to master as I wanted to have everyone's
> opinion on it first.
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