ChannelOption Class — netty Architecture

Source Code

transport/src/main/java/io/netty/channel/ChannelOption.java lines 34–174

public class ChannelOption<T> extends AbstractConstant<ChannelOption<T>> {

    private static final ConstantPool<ChannelOption<Object>> pool = new ConstantPool<ChannelOption<Object>>() {
        @Override
        protected ChannelOption<Object> newConstant(int id, String name) {
            return new ChannelOption<Object>(id, name);
        }
    };

    /**
     * Returns the {@link ChannelOption} of the specified name.
     */
    @SuppressWarnings("unchecked")
    public static <T> ChannelOption<T> valueOf(String name) {
        return (ChannelOption<T>) pool.valueOf(name);
    }

    /**
     * Shortcut of {@link #valueOf(String) valueOf(firstNameComponent.getName() + "#" + secondNameComponent)}.
     */
    @SuppressWarnings("unchecked")
    public static <T> ChannelOption<T> valueOf(Class<?> firstNameComponent, String secondNameComponent) {
        return (ChannelOption<T>) pool.valueOf(firstNameComponent, secondNameComponent);
    }

    /**
     * Returns {@code true} if a {@link ChannelOption} exists for the given {@code name}.
     */
    public static boolean exists(String name) {
        return pool.exists(name);
    }

    /**
     * Creates a new {@link ChannelOption} for the given {@code name} or fail with an
     * {@link IllegalArgumentException} if a {@link ChannelOption} for the given {@code name} exists.
     *
     * @deprecated use {@link #valueOf(String)}.
     */
    @Deprecated
    @SuppressWarnings("unchecked")
    public static <T> ChannelOption<T> newInstance(String name) {
        return (ChannelOption<T>) pool.newInstance(name);
    }

    public static final ChannelOption<ByteBufAllocator> ALLOCATOR = valueOf("ALLOCATOR");

    public static final ChannelOption<RecvByteBufAllocator> RECVBUF_ALLOCATOR = valueOf("RECVBUF_ALLOCATOR");

    /**
     * @deprecated use {@link #RECVBUF_ALLOCATOR}.
     */
    @Deprecated
    public static final ChannelOption<RecvByteBufAllocator> RCVBUF_ALLOCATOR = RECVBUF_ALLOCATOR;

    public static final ChannelOption<MessageSizeEstimator> MESSAGE_SIZE_ESTIMATOR = valueOf("MESSAGE_SIZE_ESTIMATOR");

    public static final ChannelOption<Integer> CONNECT_TIMEOUT_MILLIS = valueOf("CONNECT_TIMEOUT_MILLIS");
    /**
     * @deprecated Use {@link MaxMessagesRecvByteBufAllocator}
     * and {@link MaxMessagesRecvByteBufAllocator#maxMessagesPerRead(int)}.
     */
    @Deprecated
    public static final ChannelOption<Integer> MAX_MESSAGES_PER_READ = valueOf("MAX_MESSAGES_PER_READ");
    public static final ChannelOption<Integer> MAX_MESSAGES_PER_WRITE = valueOf("MAX_MESSAGES_PER_WRITE");

    public static final ChannelOption<Integer> WRITE_SPIN_COUNT = valueOf("WRITE_SPIN_COUNT");
    /**
     * @deprecated Use {@link #WRITE_BUFFER_WATER_MARK}
     */
    @Deprecated
    public static final ChannelOption<Integer> WRITE_BUFFER_HIGH_WATER_MARK = valueOf("WRITE_BUFFER_HIGH_WATER_MARK");
    /**
     * @deprecated Use {@link #WRITE_BUFFER_WATER_MARK}
     */
    @Deprecated
    public static final ChannelOption<Integer> WRITE_BUFFER_LOW_WATER_MARK = valueOf("WRITE_BUFFER_LOW_WATER_MARK");
    public static final ChannelOption<WriteBufferWaterMark> WRITE_BUFFER_WATER_MARK =
            valueOf("WRITE_BUFFER_WATER_MARK");

    public static final ChannelOption<Boolean> ALLOW_HALF_CLOSURE = valueOf("ALLOW_HALF_CLOSURE");
    public static final ChannelOption<Boolean> AUTO_READ = valueOf("AUTO_READ");