layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | |||
|---|---|---|---|---|---|---|---|---|
| pattern | Object Pool | object-pool | /patterns/object-pool/ | Creational |
|
Intent
When objects are expensive to create and they are needed only for short periods of time it is advantageous to utilize the Object Pool pattern. The Object Pool provides a cache for instantiated objects tracking which ones are in use and which are available.
Class diagram
Applicability
Use the Object Pool pattern when
- the objects are expensive to create (allocation cost)
- you need a large number of short-lived objects (memory fragmentation)