@After

JUnit4

Run instance method after each test

@AfterAll

JUnit5

method to run after all tests in the current test class.

@AfterClass

JUnit4

Run static method after all tests

@AfterEach

JUnit5

method to run after each @Test method in the current test class.

@ApplicationPath

JAX-RS

Root path of REST calls

@ApplicationScoped

CDI/JSF

Object scoped to entire application

@Autowired

Spring

mark the dependency that Spring is going to resolve and inject

@Basic

JPA

Specify column parameters

@Bean

Spring

Marks method as bean provider (advanced topic)

@Before

JUnit4

Run before each test all tests

@BeforeAll

JUnit5

method to run before all tests in the current test class.

@BeforeClass

JUnit4

Run static method before all tests

@BeforeEach

JUnit5

method to run before each @Test method in the current test class.

@Column

JPA

Override defaults such as column name

@Component

Spring

Makes this object a Bean

@Consumes

JAX-RS

Content-type to accept and to translate object from

@Context

@Controller

SpringMVC

Mark class as web handler

@ConversationScoped

@Convert

JPA

Specifies which converter to use

@Converter

JPA

Defines class as a converter

@Dependent

CDI

Object depends on another object

@DependsOn

Spring

force Spring IoC to initialize one or more beans before this bean

@Deprecated

SE

Compile-time - generate warnings for using obsolete or dangerous methods

@Disabled

JUnit5

test class or test method is currently disabled; will not be executed.

@DiscriminatorColumn

JPA

For SINGLE_TABLE: name of type field

@DiscriminatorValue

JPA

For SINGLE_TABLE: value of type field for this subclass

@DisplayName

JUnit5

declare a custom display name for the annotated test class or test method.

@Documented

SE

Compile-time - make this type part of the documented public API

@ElementCollection

JPA

@Email

BVS

Field must be syntactically-correct email

@Embeddable/@Embedded

JPA

Embedded object lives in same row of database

@EmbeddedId

JPA

Compount Primary Key is embedded

@End

@Entity

JPA

Object is a JPA Entity

@Enumerated

JPA

Property is a Java Annotation

@FacesConverter

JSF

Object is a JSF converter

@Field

JPA

@FormParam

JAX-RS

Name of form parameter to retrieve and pass into method

@FunctionalInterface

java.lang

Interface is claimed to be functional (one non-default method)

@GET

JAX-RS

REST method invoked with HTTP GET

@Generated

JA

Used to indicated that class has been generated by code

@GeneratedValue

JPA

How to generate primary key for new objects

@HeaderParam

JAX-RS

Name of HTTP Header to retrieve and pass into method

@Id

JPA

Property maps to primary key column

@Ignore

JUnit

Ignore this test method

@Import

Spring

Causes one @Configuration class to import another

@ImportResource

Spring

load beans from an applicationContext.xml file into the bean factory

@Index

JPA

Used in @Table &c to generate index on named column(s)

@Indexed

Spring

@Inheritance

JPA

Type of inheritance strategy to use

@Inherited

SE

Compile-time - annotation type is automatically inherited.

@Inject

JI

Inject object at method/field/constructor

@JoinColumn

JPA

Name of column used to join tables

@Lazy

Spring

Mark Spring singleton bean to be lazily loaded

@Lob

JPA

Object is a Large (binary) Object

@Local

EJB

EJB is to be accessed locally (in-vm)

@Lookup

Spring

Replace bean method with lookup of bean having same type as method return

@ManagedBean

JI/JSF

Object can be referred to by name

@ManagedProperty

JSF

Property is to be injected

@ManyToMany

JPA

Relationship

@ManyToOne

JPA

Relationship

@MapKey

@Min @Max

BVS

Property must be within range to pass validation

@ModelAttribute

SpringMVC

Command Object parameter to method is in ModelMap

@Mojo

Maven

@Named

CDI

Used to disambiguate CDI injections

@NamedQuery/NamedQueries

JPA

Externalized JPA Query

@Nested

JUnit5

nested non-static test class.

@NotEmpty

BVS

Field must be non-empty (String or collection)

@NotNull

BVS

Element may not be null

@OneToMany

JPA

Relationship is one of this Entity to many of those in field.

@OneToOne

JPA

Specify relationship ordinality

@OrderBy

JPA

Specify sort order on a relationship

@OrderColumn

JPA

@Override

SE

Compile-time check that method is a valid override

@Override

java.lang

Compile-time: ensure method is override not overload

@POST

JAX-RS

REST method invoked with specified HTTP method

@PUT

JAX-RS

REST method invoked with specified HTTP method

@Parameter

@Parameters

Wrapper for multiple @Parameter

@Path

JAX-RS

Path to REST service or method

@PathParam

JAX-RS

Name of parameter from @Path template to pass into method

@Pattern

BVS

Property must match regex pattern to be valid

@PermitAll

EJB

Allow any user to invoke EJB method

@PersistenceContext

JPA

Inject an EntityManager

@PersistenceUnit

JPA

Inject an EntityManagerFactory

@PostActivate

EJB3

Method called after bean is re-activated

@PostConstruct

JA

Called after object has been constructed

@PostParam

JAX-RS

@PreDestroy

JA

Called before object is destroyed

@PrePassivate

EJB3

Method called before bean is passivated

@PrePersist

JPA

Invoke method before persisting new entity

@PreUpdate

JPA

Invoke method before updating existing entity

@Primary

Spring

give higher preference to this bean when multiple beans of same type are configured

@Produces

JAX-RS

Content-type to produce and to translate return object into

@Profile

Spring

Use this bean only when given profile is active

@PropertySource

Spring

Read a Property file and apply values to properties that match keys

@Qualifier

JI

Defines custom CDI qualifier

@Qualifier

Spring

Narrow down DI choices

@Query

DSD

Specifies JPA query for interface method

@Remote

EJB

EJB is for remote (JNDI/RMI) access

@Remove

EJB

Method disconnects client from bean and removes state from memory

@Repository

DS-D

DeltaSpike Data: Interface or Abstract Class → DAO

@RequestMapping

SpringMVC

Web Method URL/HTTP Method/ etc.

@RequestParam

SpringMVC

Map HTTP request parameter to method parameter

@RequestScoped

CDI/JSF

Bean scoped to HTTP Request

@Required

Spring

indicates that the setter method must be configured to be dependency-injected

@Resource

JA

Request injection of resource

@Resources

JA

wrapper for multiple @Resource

@Retention

SE

Whether annotion is compile time/ kept in class/ or at runtime

@RolesAllowed

EJB

Specify container-managed security roles allowed to invoke method

@RunWith

JUnit4

Specify alternate test runner

@SafeVarargs

SE

Compile-time - assert that annotated method uses its varargs parameter correctly

@SandBox

@Scope

JI

Determines lifespan of object

@Scope

Spring

define the lifespan of a bean

@SecondaryTable

JPA

@SessionScoped

CDI/JSF

Object scoped to HTTP Session

@Singleton

JI

Instantiate EJB only once

@Size

BVS

required size of field value

@Startup

??

Run at startup

@Stateful

EJB

Object is Stateful Session Bean (SFSB)

@Stateless

EJB

Object is Stateless Session Bean (SFSB)

@SuppressWarnings

SE

Compile-time warnings suppression

@Table

JPA

Specify table name etc for JPA Entity

@Tag

JUnit5

repeatable annotation declares a tag for the annotated test class or test method.

@Tags

JUnit5

container for one or more @Tag declarations.

@Target

SE

Compile-time - where the annotation is allowed to be placed (classes/methods/parameters/etc.)

@TargetApi

Android

API level needed for method

@Temporal

JPA

Property is a date and/or time field

@Test

JUnit4/JUnit5

This is a test method

@TestFactory

JUnit5

Method is a JUnit5 test factory method.

@TransactionAttribute

EJB3

Method needs transaction

@TransactionManagement

EJB3

TX managed by bean or by container

@TransactionScoped

JTA

@Transactional

JTA|Spring

Whether method needs own transaction/join existing/etc.

@Transient

JPA

Omit property from database

@UiComesAfter

MW

@UiHidden

MW

@UiLabel

MW

@Valid

SpringMVC

Command Object parameter is to be validated against its BVS annotations

@Value

Spring

Assign default value of literal or from environment or system variable

@Version

JPA

Use int or date field for optimistic locking

@View

@WebMethod

JAX-WS

Mark method as a SOAP Service Method (or exclude it)

@WebParam

JAX-WS

Specify SOAP name for parameter

@WebResult

JAX-WS

Specify SOAP name for method return value

@WebService

JAX-WS

Mark object as a SOAP Web Service

@WebServlet

Servlet

Mark object as an HTTP servlet and specify URL path

@XmlAccessorType

JAXB

Use field or method access

@XmlRootElement

JAXB

Root element of generated XML document

@XmlType

JAXB

Map class to XML schema type