# Service Locator Pattern

Record: `arch:service-locator-pattern`
Kind: pattern
Layer: [Extensibility Core](https://banes-lab.com/records/layer/extensibility-core.md)
Severity: discouraged
Scope: runtime, dependency access
Canonical: https://banes-lab.com/ontology#arch-service-locator-pattern

## Repair

- Refactored by: Replace with Dependency Injection
- Detected by: service locator calls inside domain logic
- Violated by: hidden dependencies through global locator
- Measured by: hidden dependency count
- Enforced by: banned API rules

## requires

- [Registry](https://banes-lab.com/records/lex/registry.md)

## reinforces

- [Runtime Lookup](https://banes-lab.com/records/lex/runtime-lookup.md)

## enables

- [Late Resolution](https://banes-lab.com/records/lex/late-resolution.md)

## tensions-with

- [Testability](https://banes-lab.com/records/arch/testability.md)
- [Dependency Inversion Principle (DIP)](https://banes-lab.com/records/arch/dependency-inversion.md)
- [Explicit Dependencies](https://banes-lab.com/records/lex/explicit-dependencies.md)

## tensions

- [Service Locator Pattern Testability](https://banes-lab.com/records/tension/service-locator-pattern-testability.md)
- [Service Locator Pattern Dependency Inversion Principle (DIP)](https://banes-lab.com/records/tension/dependency-inversion-principle-dip-service-locator-pattern.md)
- [Service Locator Pattern Explicit Dependencies](https://banes-lab.com/records/tension/explicit-dependencies-service-locator-pattern.md)