severin.core — zcfux/severin 0.2.0

A library for implementing resource pools.

->factory clj multimethod

Creates a factory from a URI by dispatching on the scheme.

create! clj

(create! pool uri)

Tries to retrieve and recycle an already created resource from the pool. If no resource can be found a new one is created.

dispose! clj

(dispose! pool resource)

(dispose! pool uri resource)

Places a resource back in the pool or disposes it when maximum size is reached.

FactoryProtocol clj protocol

-create! clj

(-create! this uri)

Creates a new resource from a URI.

-dispose! clj

(-dispose! this resource)

Disposes a resource.

-recycle! clj

(-recycle! this resource uri)

Recycles an existing resource and assigns a URI.

-valid? clj

(-valid? this resource)

Tests if a resource is still valid.

make-pool clj

(make-pool & {:keys [max-size] :or {max-size 10}})

Returns a new Ref with an empty hash map as initial value.

uri clj

(uri resource)

URI->KeyProtocol clj protocol

-uri->key clj

(-uri->key this uri)

Converts a URI to a keyword.

URIProtocol clj protocol

-uri clj

(-uri this)

Returns the URI of a resource.

with-pool clj macro

(with-pool pool bindings & body)

binding => [name uri ...] Evaluates body in a try expression with names bound to the values of the created resources. The finally clause calls dispose! on each name.