Spring Data + Kotlin developer experience for VS Code. Validates derived JPA query methods, suggests column-aware completions, and decorates repository methods with the JetBrains JpaIcons gutter set.

Features

Derived query method validation — typos like findByEmialContaining are flagged inline; nested properties (findByUserEmail) are resolved across entity boundaries.
Smart completion inside repository interfaces — given an entity with email: String?, typing findBy proposes findByEmail, findByEmailContaining, findByEmailIsNull, …
JpaIcons gutter glyphs — every method gets a category-specific icon (find single, find collection, count, delete, save/update, @Query, @Modifying, projection, custom).
Hover + CodeLens + Go-to-Definition — hover over a repository method to see its derivation tree; click the lens above the interface to jump to the entity.
Pure regex/heuristic analyzer; no JVM round-trip required.

Configuration

Setting	Default	Description
`springDataKotlin.diagnostics.enabled`	`true`	Toggle inline validation.
`springDataKotlin.gutterIcons.enabled`	`true`	Toggle gutter glyphs.
`springDataKotlin.codeLens.enabled`	`true`	Toggle interface CodeLens.
`springDataKotlin.completion.enabled`	`true`	Toggle column-aware completions.
`springDataKotlin.extraQuerySubjects`	`[]`	Extra query subject prefixes (e.g. `searchAll`).

Commands

Spring Data Kotlin: Refresh workspace analysis
Spring Data Kotlin: Toggle gutter icons
Spring Data Kotlin: Go to entity

Sample workspace

A multi-module Spring Boot + Kotlin project lives under sample/. Use the Run Extension (sample/) launch configuration to develop the extension against real Spring Data code, including a deliberately mistyped repository method.

Development

bun install
bun run compile
bun run test       # 33 unit tests, ~90ms
bun run icon       # regenerate images/icon.png (also fetches JpaIcons)

The analyzer modules in src/ (entityScanner.ts, queryMethodParser.ts, repositoryAnalyzer.ts, methodSuggester.ts, sourceUtils.ts, entityModel.ts) are pure-Node and unit-tested with vitest. Anything that touches vscode lives in extension.ts.