This commit adds a test slice for Spring Data R2DBC. When
`DataR2dbcTest` is added on a test, only Spring Data R2DBC repositories
and the infrastructure that they need is auto-configured.
Contrary to the JDBC counterpart, the `ConnectionFactory` is not swapped
by an embedded database.
See gh-19988
Co-authored-by: Mark Paluch <mpaluch@pivotal.io>
This commit adds auto-configuration support for Spring Data R2DBC. If a
`ConnectionFactory` and Spring Data are available, scanning of reactive
repositories is enabled.
This commit also adds a starter to bring R2DBC and the necessary Spring
Data libraries.
See gh-19988
Co-authored-by: Mark Paluch <mpaluch@pivotal.io>
Co-authored-by: Oliver Drotbohm <odrotbohm@pivotal.io>
This commit adds auto-configuration for R2DBC. If R2DBC is on the
classpath, a `ConnectionFactory` is created similarly to the algorithm
used to create a `DataSource`.
If an url is specified, it is used to determine the R2DBC driver and
database location. If not, an embedded database is started (with only
support of H2 via r2dbc-h2). If none of those succeed, an exception is
thrown that is handled by a dedicated FailureAnalyzer.
To clearly separate reactive from imperative access, a `DataSource` is
not auto-configured if a `ConnectionFactory` is present. This makes sure
that any auto-configuration that relies on the presence of a
`DataSource` backs off.
There is no dedicated database initialization at the moment but it is
possible to configure flyway or liquibase to create a local `DataSource`
for the duration of the migration. Alternatively, if Spring Data R2DBC
is on the classpath, a `ResourceDatabasePopulator` bean can be defined
with the scripts to execute on startup.
See gh-19988
Co-authored-by: Mark Paluch <mpaluch@pivotal.io>