Get all classes with a specific annotation

Hey, I would like to get all the classes having an annotation named: "Command". Make sure not to have indicated the "commands" package if possible. My project would be to make a kind of commandHandler which will load all the commands in a map.

- @ Command

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Command {
    String name();
}

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Command {
    String name();
}

- Command Help

@Command(name = "help")
public class HelpCommand implements CommandRunner {

    @Override
    public void run(ArgumentParser parser, Subparsers subparsers) {
        parser.printHelp();
    }
}

@Command(name = "help")
public class HelpCommand implements CommandRunner {

    @Override
    public void run(ArgumentParser parser, Subparsers subparsers) {
        parser.printHelp();
    }
}

JC|HCL

Java Community | Help. Code. Learn.•3y ago•

6 replies

Max

Get all classes with a specific annotation

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Command {
    String name();
}

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Command {
    String name();
}

- Command Help

@Command(name = "help")
public class HelpCommand implements CommandRunner {

    @Override
    public void run(ArgumentParser parser, Subparsers subparsers) {
        parser.printHelp();
    }
}

@Command(name = "help")
public class HelpCommand implements CommandRunner {

    @Override
    public void run(ArgumentParser parser, Subparsers subparsers) {
        parser.printHelp();
    }
}

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