metabase.connection-pool — metabase/connection-pool 1.2.0

Low-level logic for creating connection pools for a JDBC-based database. Used by both application DB and connected data warehouse DBs.

The aim here is to completely encapsulate the connection pool library we use -- that way we can swap it out if we want to at some point without having to touch any other files. (TODO - this is currently true of everything except for the options, which are c3p0-specific -- consider abstracting those as well?)

connection-pool-spec clj

(connection-pool-spec spec)

(connection-pool-spec spec pool-properties-map)

(connection-pool-spec driver spec pool-properties-map)

Create a new connection pool for a JDBC spec and return a spec for it. Optionally pass a map of connection pool properties -- see https://www.mchange.com/projects/c3p0/#configuration_properties for a description of valid options and their default values.

destroy-connection-pool! clj

(destroy-connection-pool! spec-or-data-source)

Immediately release all resources held by a connection pool.

map->properties clj

(map->properties m)

Create a Properties object from a JDBC connection spec map. Properties objects are maps of String -> String, so all keys and values are converted to Strings appropriately.

pooled-data-source clj

(pooled-data-source spec)

(pooled-data-source spec pool-properties-map)

(pooled-data-source driver spec pool-properties-map)

Create a new pooled DataSource from a clojure.java.jdbc spec.

pooled-data-source-from-url clj

(pooled-data-source-from-url url)

(pooled-data-source-from-url url pool-properties-map)

(pooled-data-source-from-url driver url pool-properties-map)

Create a new pooled DataSource from a JDBC URL string.