Home / cs-notes / Architecture / Components / Netty / Handler / ChannelHandler

public interface ChannelHandler { ... }

void handlerAdded(ChannelHandlerContext ctx) throws Exception;

void handlerRemoved(ChannelHandlerContext ctx) throws Exception;

    /**
     * Gets called if a {@link Throwable} was thrown.
     *
     * @deprecated if you want to handle this event you should implement {@link ChannelInboundHandler} and
     * implement the method there.
     */
    @Deprecated
    void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception;

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