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java-design-patterns/lazy-loading
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Anurag Agarwal eae09fc07e Resolves checkstyle errors for api-gateway, lazy-loading, leader-election (#1066) 
* Reduces checkstyle errors in lazy-loading

* Reduces checkstyle errors in leader-election

* Reduces checkstyle errors in api-gateway
2019-11-10 19:13:40 +02:00
..
etc
#190 Remove urm plugin
2017-11-28 20:55:52 +02:00
src
Resolves checkstyle errors for api-gateway, lazy-loading, leader-election (#1066)
2019-11-10 19:13:40 +02:00
pom.xml
Update license headers
2019-10-12 20:05:54 +03:00
README.md
#190 Remove pumlids from readmes
2017-11-28 21:28:53 +02:00

README.md

layout, title, folder, permalink, categories, tags
layout title folder permalink categories tags
pattern Lazy Loading lazy-loading /patterns/lazy-loading/ Other
Java
Difficulty-Beginner
Idiom
Performance

Intent

Lazy loading is a design pattern commonly used to defer initialization of an object until the point at which it is needed. It can contribute to efficiency in the program's operation if properly and appropriately used.

alt text

Applicability

Use the Lazy Loading idiom when

  • eager loading is expensive or the object to be loaded might not be needed at all

Real world examples

  • JPA annotations @OneToOne, @OneToMany, @ManyToOne, @ManyToMany and fetch = FetchType.LAZY

Credits