Tagged articles

map-injection

3 articles · Page 1 of 1

May 26, 2026 · Backend Development

N Ways to Dynamically Switch Spring Boot Implementations and Ditch if‑else

The article demonstrates four practical techniques—@Qualifier, manual ApplicationContext lookup, Map injection, and a FactoryBean with dynamic proxy—to dynamically select among multiple Spring Boot beans, eliminating static if‑else wiring and improving code flexibility and maintainability.

@QualifierApplicationContextFactoryBean

0 likes · 7 min read

N Ways to Dynamically Switch Spring Boot Implementations and Ditch if‑else

The Dominant Programmer

Apr 12, 2024 · Backend Development

Implementing the Strategy Pattern in Spring with Built‑in @Autowired

The article shows how to replace bulky if‑else logic in Spring Boot by using the strategy pattern together with a factory that autowires all Strategy implementations into a Map, explains the @Autowired semantics for collections, and provides concrete code examples.

AutowiredDependency InjectionJava

0 likes · 8 min read

Implementing the Strategy Pattern in Spring with Built‑in @Autowired

Cognitive Technology Team

Mar 21, 2022 · Backend Development

Why Spring @Bean Aliases Disappear in Map Injection and How to Restore Them

When a Spring @Bean is defined with multiple names, only the first name becomes the bean identifier while the others become aliases that are ignored by type‑based Map injection, causing dynamic data‑source routing to fail unless the aliases are manually added back into the map.

JavaSpringabstractroutingdatasource

0 likes · 5 min read

Why Spring @Bean Aliases Disappear in Map Injection and How to Restore Them