ChannelPipeline Type — netty Architecture

Source Code

transport/src/main/java/io/netty/channel/ChannelPipeline.java lines 208–643

public interface ChannelPipeline
        extends ChannelInboundInvoker, ChannelOutboundInvoker, Iterable<Entry<String, ChannelHandler>> {

    /**
     * Inserts a {@link ChannelHandler} at the first position of this pipeline.
     *
     * @param name     the name of the handler to insert first
     * @param handler  the handler to insert first
     *
     * @throws IllegalArgumentException
     *         if there's an entry with the same name already in the pipeline
     * @throws NullPointerException
     *         if the specified handler is {@code null}
     */
    ChannelPipeline addFirst(String name, ChannelHandler handler);

    /**
     * Inserts a {@link ChannelHandler} at the first position of this pipeline.
     *
     * @param group    the {@link EventExecutorGroup} which will be used to execute the {@link ChannelHandler}
     *                 methods
     * @param name     the name of the handler to insert first
     * @param handler  the handler to insert first
     *
     * @throws IllegalArgumentException
     *         if there's an entry with the same name already in the pipeline
     * @throws NullPointerException
     *         if the specified handler is {@code null}
     * @deprecated use {@link #addFirst(String, ChannelHandler)}
     */
    @Deprecated
    ChannelPipeline addFirst(EventExecutorGroup group, String name, ChannelHandler handler);

    /**
     * Appends a {@link ChannelHandler} at the last position of this pipeline.
     *
     * @param name     the name of the handler to append
     * @param handler  the handler to append
     *
     * @throws IllegalArgumentException
     *         if there's an entry with the same name already in the pipeline
     * @throws NullPointerException
     *         if the specified handler is {@code null}
     */
    ChannelPipeline addLast(String name, ChannelHandler handler);

    /**
     * Appends a {@link ChannelHandler} at the last position of this pipeline.
     *
     * @param group    the {@link EventExecutorGroup} which will be used to execute the {@link ChannelHandler}
     *                 methods
     * @param name     the name of the handler to append
     * @param handler  the handler to append
     *
     * @throws IllegalArgumentException
     *         if there's an entry with the same name already in the pipeline
     * @throws NullPointerException
     *         if the specified handler is {@code null}
     * @deprecated use {@link #addLast(String, ChannelHandler)}
     */
    @Deprecated
    ChannelPipeline addLast(EventExecutorGroup group, String name, ChannelHandler handler);

    /**
     * Inserts a {@link ChannelHandler} before an existing handler of this
     * pipeline.
     *
     * @param baseName  the name of the existing handler
     * @param name      the name of the handler to insert before
     * @param handler   the handler to insert before
     *
     * @throws NoSuchElementException
     *         if there's no such entry with the specified {@code baseName}
     * @throws IllegalArgumentException
     *         if there's an entry with the same name already in the pipeline
     * @throws NullPointerException
     *         if the specified baseName or handler is {@code null}
     */
    ChannelPipeline addBefore(String baseName, String name, ChannelHandler handler);

    /**