java-design-patterns/object-pool/index.md

layout, title, folder, permalink, categories, tags

layout	title	folder	permalink	categories	tags
pattern	Object Pool	object-pool	/patterns/object-pool/	creational	pattern_tag

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.

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)