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inject-in-sling-model

[BETA] AEM Cloud Service expert skill — migrate javax.inject.@Inject fields in Sling Model (@Model) classes to injector-specific annotations (@ValueMapValue / @OSGiService / @SlingObject). Self-discoverable (scan for @Model classes with field-level @Inject); the replacement is chosen deterministically from each field's declared type. Use for "fix @Inject in HeroModel.java", "modernize my Sling Models", or when scanning an AEM project for @Inject misuse. Detailed decision table, companion-annotation handling, import management, and file-level skip policy are in recipe.md. This skill is in beta. Verify all outputs before applying them to production projects.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

aemgdc/aemdev
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포함된 파일(2)

  • SKILL.md3.6 KB
  • recipe.md11.7 KB

SKILL.md(원문)

설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.

Beta Skill: This skill is in beta and under active development. Results should be reviewed carefully before use in production. Report issues at https://github.com/adobe/skills/issues

@Inject in Sling Models — AEM as a Cloud Service

This pattern is executed by the code-assessment runbook — follow ../references/runbook.md for the full flow (preflight → plan → apply → verify, run log). This skill supplies the detection + recipe the runbook applies.

Overview

javax.inject.@Inject on fields of @Model classes is discouraged by the Apache Sling Models documentation. Removing @Inject without a replacement breaks injection, so each field is migrated to an injector-specific annotation chosen from its declared type.

Classification — confirm this pattern applies

  • A *.java file whose class is annotated @Model, with at least one field annotated @Inject.
  • Constructor-parameter and setter-method @Inject are out of scope (trigger the file-level skip).

Discovery

Detection is performed by the analyzer (../scripts/analyze.sh), run by the runbook:

bash ../scripts/analyze.sh <workspace-root> --pattern inject-in-sling-model

Match criteria (what the detector flags): a class annotated @Model (org.apache.sling.models.annotations.Model, confirmed import-aware) with at least one field annotated @Inject (javax.inject.Inject or jakarta.inject.Inject). One finding per matching field. Constructor/setter @Inject and non-@Model classes are not flagged. The replacement annotation is chosen from the field's declared type by the decision table in recipe.md.

Resolution contract

self-evident — the replacement annotation is fully determined by the field's declared Java type via the decision table in recipe.md. No external input is required.

Review checklist

  • Each migrated field maps to exactly one injector-specific annotation per the decision table
  • Sling objects (Resource / ResourceResolver / request / response) → @SlingObject, not @Self
  • @Named merged into the new annotation's name; @Default / @Via preserved
  • @Optional → per-field injectionStrategy = InjectionStrategy.OPTIONAL (never a class-level defaultInjectionStrategy change)
  • Unused imports removed; new imports added and ordered per the file's convention
  • File-level skip respected — no partial migration of a file with any ambiguous field

Recipe

Read recipe.md in full before editing: input contract, decision table, companion annotations, import management, unlocatable / skip-file policy, per-file procedure, before/after example, editing strategy.

Handoff

The skill never commits. See ../references/git-workflow.md for git vs in-place handoff and the suggested commit message.

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