查看“︁Java:JSR330”︁的源代码

[https://jcp.org/en/jsr/detail?id=330 JSR330]定义了Java依赖注入的标准。主要提供了一系列的定义（[http://docs.oracle.com/javaee/6/api/javax/inject/package-summary.html javax.inject.*]）：
*Provider<T>	Provides instances of T.
*Inject	Identifies injectable constructors, methods, and fields.
*Named	String-based qualifier.
*Qualifier	Identifies qualifier annotations.
*Scope	Identifies scope annotations.
*Singleton	Identifies a type that the injector only instantiates once.
=@Inject=
see [https://dzone.com/articles/java-ee6-cdi-named-components this] post
<source lang="java">
public interface Payment {
    void pay(BigDecimal amount);
}

public class CashPaymentImpl implements Payment {

    private static final Logger LOGGER = Logger.getLogger(CashPaymentImpl.class.toString());

    @Override
    public void pay(BigDecimal amount) {
        LOGGER.log(Level.INFO, "payed {0} cash", amount.toString());
    }
}

@Inject private Payment payment;
</source>

=@Named=
=@Singleton=
=@Qualifier=
=@Scope=
=Provider<T>=

[[Category:Programe]]