> ## Documentation Index
> Fetch the complete documentation index at: https://suvera.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Attribute Reference: Every Winter Boot Stereotype

> One-stop reference for every PHP 8 attribute Winter Boot ships: application, DI, web, data, async, caching, transactions, actuator, CLI, and testing.

Winter Boot uses PHP 8 attributes for its entire programming model. This page indexes every attribute the framework exposes, grouped by the concern it belongs to, with a one-line meaning and a link to the concept page that documents its usage.

## Application bootstrap

| Attribute                  | Namespace                        | Purpose                                                                                          |
| -------------------------- | -------------------------------- | ------------------------------------------------------------------------------------------------ |
| `#[WinterBootApplication]` | `dev\winterframework\stereotype` | Marks the entry-point class and configures scan paths, config directories, and enabled features. |
| `#[Configuration]`         | `dev\winterframework\stereotype` | Declares a bean-producing class whose `#[Bean]` methods contribute beans to the container.       |
| `#[PostConstruct]`         | `dev\winterframework\stereotype` | Marks a bean method to run after all dependencies are injected.                                  |
| `#[OnApplicationReady]`    | `dev\winterframework\stereotype` | Marks a bean method to run once the application context is fully ready.                          |
| `#[Module]`                | `dev\winterframework\stereotype` | Registers a class as a Winter module (see [Module System](/core/module-system)).                 |

## Dependency injection

| Attribute         | Namespace                        | Purpose                                                        |
| ----------------- | -------------------------------- | -------------------------------------------------------------- |
| `#[Service]`      | `dev\winterframework\stereotype` | Registers a service-layer bean.                                |
| `#[Component]`    | `dev\winterframework\stereotype` | Registers a generic bean.                                      |
| `#[Autowired]`    | `dev\winterframework\stereotype` | Injects a dependency into a property or constructor parameter. |
| `#[Bean]`         | `dev\winterframework\stereotype` | Marks a `#[Configuration]` method as a bean factory.           |
| `#[Qualifier]`    | `dev\winterframework\stereotype` | Disambiguates between beans of the same type by name.          |
| `#[Value]`        | `dev\winterframework\stereotype` | Injects a property or config value into a field.               |
| `#[JsonProperty]` | `dev\winterframework\stereotype` | Maps a PHP property to a JSON key for (de)serialisation.       |

Read [Dependency Injection](/core/dependency-injection) for full usage.

## Web and REST

| Attribute           | Namespace                            | Purpose                                  |
| ------------------- | ------------------------------------ | ---------------------------------------- |
| `#[RestController]` | `dev\winterframework\stereotype`     | Declares a REST controller bean.         |
| `#[RequestMapping]` | `dev\winterframework\stereotype\web` | Maps a class or method to an HTTP path.  |
| `#[GetMapping]`     | `dev\winterframework\stereotype\web` | Maps a method to `GET`.                  |
| `#[PostMapping]`    | `dev\winterframework\stereotype\web` | Maps a method to `POST`.                 |
| `#[PutMapping]`     | `dev\winterframework\stereotype\web` | Maps a method to `PUT`.                  |
| `#[PatchMapping]`   | `dev\winterframework\stereotype\web` | Maps a method to `PATCH`.                |
| `#[DeleteMapping]`  | `dev\winterframework\stereotype\web` | Maps a method to `DELETE`.               |
| `#[PathVariable]`   | `dev\winterframework\stereotype\web` | Binds a URI path segment to a parameter. |
| `#[RequestParam]`   | `dev\winterframework\stereotype\web` | Binds a query-string parameter.          |
| `#[RequestBody]`    | `dev\winterframework\stereotype\web` | Binds the deserialised request body.     |

See [REST Controllers](/web/rest-controllers) and [Request Mapping](/web/request-mapping).

## Data, PPA, and transactions

| Attribute                        | Namespace                            | Purpose                                        |
| -------------------------------- | ------------------------------------ | ---------------------------------------------- |
| `#[Table]`                       | `dev\winterframework\stereotype\ppa` | Maps a PHP class to a database table.          |
| `#[Column]`                      | `dev\winterframework\stereotype\ppa` | Maps a PHP property to a column.               |
| `#[SequenceGenerator]`           | `dev\winterframework\stereotype\ppa` | Declares a sequence-backed ID generator.       |
| `#[TableGenerator]`              | `dev\winterframework\stereotype\ppa` | Declares a table-backed ID generator.          |
| `#[EnableTransactionManagement]` | `dev\winterframework\stereotype\txn` | Enables `#[Transactional]` on the application. |
| `#[Transactional]`               | `dev\winterframework\txn\stereotype` | Wraps a method in a database transaction.      |

See [Datasources](/data/database), [Transactions](/data/transactions), [SQL Migrations](/data/migrations), and [OpenSearch Migrations](/data/opensearch-migrations).

## Async, scheduling, and concurrency

| Attribute             | Namespace                                        | Purpose                                           |
| --------------------- | ------------------------------------------------ | ------------------------------------------------- |
| `#[EnableAsync]`      | `dev\winterframework\stereotype\task`            | Enables `#[Async]` on the application.            |
| `#[Async]`            | `dev\winterframework\task\async\stereotype`      | Dispatches a method to a background worker.       |
| `#[EnableScheduling]` | `dev\winterframework\stereotype\task`            | Enables `#[Scheduled]` on the application.        |
| `#[Scheduled]`        | `dev\winterframework\task\scheduling\stereotype` | Runs a method on a cron or fixed-delay schedule.  |
| `#[DaemonThread]`     | `dev\winterframework\stereotype\cli`             | Runs a bean method as a long-lived daemon thread. |
| `#[Lockable]`         | `dev\winterframework\stereotype\concurrent`      | Serialises method execution across processes.     |

See [Async Tasks](/async/async-tasks), [Scheduled Tasks](/async/scheduling), [Daemon Threads](/async/daemon-threads), and [Locking](/ops/locking).

## Caching

| Attribute          | Namespace                              | Purpose                                       |
| ------------------ | -------------------------------------- | --------------------------------------------- |
| `#[EnableCaching]` | `dev\winterframework\stereotype\cache` | Enables method-level caching attributes.      |
| `#[Cacheable]`     | `dev\winterframework\cache\stereotype` | Caches a method's return value.               |
| `#[CachePut]`      | `dev\winterframework\cache\stereotype` | Updates the cached entry after a method runs. |
| `#[CacheEvict]`    | `dev\winterframework\cache\stereotype` | Invalidates cached entries.                   |

See [Caching](/ops/caching).

## AOP

| Attribute          | Namespace                            | Purpose                                        |
| ------------------ | ------------------------------------ | ---------------------------------------------- |
| `#[AopStereoType]` | `dev\winterframework\stereotype\aop` | Marks a custom attribute as an AOP stereotype. |
| `#[WinterAspect]`  | `dev\winterframework\stereotype\aop` | Marks a class as an aspect implementation.     |

See [AOP & Custom Stereotypes](/core/aop).

## Actuator

| Attribute           | Namespace                                 | Purpose                                               |
| ------------------- | ----------------------------------------- | ----------------------------------------------------- |
| `#[HealthInformer]` | `dev\winterframework\actuator\stereotype` | Contributes a health check to the actuator endpoint.  |
| `#[InfoInformer]`   | `dev\winterframework\actuator\stereotype` | Contributes an info payload to the actuator endpoint. |

See [Actuator](/ops/actuator).

## CLI

| Attribute       | Namespace                            | Purpose                                   |
| --------------- | ------------------------------------ | ----------------------------------------- |
| `#[Command]`    | `dev\winterframework\stereotype\cli` | Registers a class as a CLI command bean.  |
| `#[CommandArg]` | `dev\winterframework\stereotype\cli` | Binds a property to a named CLI argument. |

See [CLI Commands](/building/cli-commands).

## Testing

| Attribute           | Namespace                             | Purpose                                            |
| ------------------- | ------------------------------------- | -------------------------------------------------- |
| `#[WinterBootTest]` | `dev\winterframework\stereotype\test` | Registers a test class as a bean during test runs. |

See [Testing](/building/testing).

## Utility

| Attribute           | Namespace                             | Purpose                              |
| ------------------- | ------------------------------------- | ------------------------------------ |
| `#[UriPath]`        | `dev\winterframework\stereotype\util` | Marks a URI path template.           |
| `#[UriPathPart]`    | `dev\winterframework\stereotype\util` | Marks a URI path segment.            |
| `#[NamedComponent]` | `dev\winterframework\stereotype\util` | Names a component for lookup.        |
| `#[ComponentName]`  | `dev\winterframework\stereotype\util` | Reads a component's registered name. |