IoRegistration Type — netty Architecture

Source Code

transport/src/main/java/io/netty/channel/IoRegistration.java lines 22–53

public interface IoRegistration {

    /**
     * Implementation specific attachment, which might be {@code null}.
     *
     * @return  attachment.
     */
    <T> T attachment();

    /**
     * Submit the {@link IoOps} to the registration.
     *
     * @param   ops ops.
     * @return  an identifier for the operation, which might be unique or not (depending on the implementation).
     */
    long submit(IoOps ops);

    /**
     * Returns {@code true} if the registration is still valid. Once {@link #cancel()} is called this
     * will return {@code false}.
     *
     * @return  valid.
     */
    boolean isValid();

    /**
     * Cancel the registration.
     *
     * @return {@code true} if cancellation was successful, {@code false} otherwise.
     */
    boolean cancel();
}