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Advanced Programming/Annotation Repository.md

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+---
+type: practical
+---
+
+## Lombok
+### `@AllArgsConstructor`(onConstructor_=@Annotation)
+- Creates a public constructor which takes in all args
+- `onConstructor_`: Places an annotation on the constructor
+
+### `@Data`
+A shortcut for `@ToString`, `@EqualsAndHashCode`, `@Getter` on all fields, and `@Setter` on all non-final fields
+
+## Spring
+
+### `RestController`
+Extends Controller. Used to declare a class as a REST controller
+### `@Autowired`
+- Annotates a constructor
+- Basically, it figures out dependency injection on its own
+
+### `@[Get/Post/Put/Delete]Mapping("/path/")`
+Makes an endpoint at path.
+
+### `@RequestParam`
+Describe the param and type
+
+```java
+@GetMapping("/api/foos")
+@ResponseBody
+public String getFoos(@RequestParam String id) {
+    return "ID: " + id;
+}
+```
+
+
+
+### Beans
+![[Beans.canvas|Beans]]
+