Notes

Spring Annotations:
1- @SpringBootApplication(scanBasePackages="com.scb")
@EnableAutoConfiguration: enable Spring Boot’s auto-configuration mechanism
@ComponentScan: enable @Component scan on the package where the application is located (see the best practices)
@Configuration: allow to register extra beans in the context or import additional configuration classes
2- @Configuration
3- @ImportResource({"classpath:/camel/camel-filemanagement-routes.xml"})
4- @Repository
5- @Autowired
6- @JsonProperty("payloadRequest")
7- @Param("entityType") String entityName --
8- @XmlElement(name = "Prty")
9- @XmlSchemaType(name = "string")
10- @Override
11- @Scope(value="prototype")
12- @POST, @DELETE, @PUT, @GET (JAX-RS)
13- @Produces(MediaType.APPLICATION_JSON) (JAX-RS)
14- @Consumes(MediaType.APPLICATION_JSON) (JAX-RS)
15- @Path("/postAceEvent") (JAX-RS)
16- @RequestMapping
17- @RequestURL ---
18- @PathParam (JAX-RS) ( equivalent to @PathVariable)
19- @QueryParam (JAX-RS) (equivalent to @RequestParam)
20- @RequestParam
21- @Qualifier
22- @Controller
23- @Service
24- @RestController (@Controller and @ResponseBody)
25- @Component
26- @EnableAutoConfiguration (https://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-auto-configuration.html)
27- @ComponentScan(basePackages = { "com.baeldung.web.controller" })
28- @RequestBody (Converts response object to HttpResponse)
29- @ResponseBody (Converts HttpRequest to Object)
30- @GetMapping ( equivalent to @RequestMapping(method = RequestMethod.GET))
31- @PostMapping (equivalent to @RequestMapping(method = RequestMethod.POST))
32- @PutMapping (equivalent to @RequestMapping(method = RequestMethod.PUT))
33- @PatchMapping (equivalent to @RequestMapping(method = RequestMethod.PATCH))
34- @DeleteMapping (equivalent to @RequestMapping(method = RequestMethod.DELETE))
35- @ExceptionHandler
36- @EnableScheduling (https://dzone.com/articles/schedulers-in-java-and-spring)
37- @Scheduled




Spring Annotation JAX-RS Annotation
@RequestMapping(path = "/troopers" @Path("/troopers")
@RequestMapping(method = RequestMethod.POST) @POST
@RequestMapping(method = RequestMethod.GET) @GET
@RequestMapping(method = RequestMethod.DELETE) @DELETE
@ResponseBody N/A
@RequestBody N/A
@PathVariable("id") @PathParam("id")
@RequestParam("xyz") @QueryParam('xyz")
@RequestMapping(produces = {"application/json"}) @Produces("application/json")
@RequestMapping(consumes = {"application/json"}) @Consumes("application/json")




@Autowired vs @Inject(JSR : Java Specification Request)
@Resource







@RequestMapping(path = "/{id}", method = RequestMethod.GET)
public Stormtrooper getTrooper(@PathVariable("id") String id) throws NotFoundException {
}


@RequestMapping(path = "/{id}", method = RequestMethod.POST)
public Stormtrooper updateTrooper(@PathVariable("id") String id, @RequestBody Stormtrooper updatedTrooper) throws NotFoundException {
return trooperDao.updateStormtrooper(id, updatedTrooper);
}





Hibernate vs JPA vs MyBatis
Comparator vs Comparable
equals() vs toString()
OutOfMemoryError , MemoryLeak, StackOverFlowError (Browser Bookmark)