Package org.apache.qpid.protonj2.engine

Class HeaderEnvelope

    • Field Detail

      • HEADER_FRAME_TYPE

        public static final byte HEADER_FRAME_TYPE
        The frame type marker used when decoding or encoding AMQP Header frames.
        See Also:
        Constant Field Values

      • SASL_HEADER_ENVELOPE

        public static final HeaderEnvelope SASL_HEADER_ENVELOPE
        A singleton instance of an SASL header that can be used to avoid additional allocations.

      • AMQP_HEADER_ENVELOPE

        public static final HeaderEnvelope AMQP_HEADER_ENVELOPE
        A singleton instance of an AMQP header that can be used to avoid additional allocations.

    • Constructor Detail

      • HeaderEnvelope

        public HeaderEnvelope​(AMQPHeader body)
        Create an header envelope with the given AMQHeader body.
        Parameters:
        body - The AMQP header instance that holds the header bytes.

    • Method Detail

      • getProtocolId

        public int getProtocolId()
        Returns:
        the protocol id value contained in the header bytes.

      • getMajor

        public int getMajor()
        Returns:
        the major version number contained in the header bytes.

      • getMinor

        public int getMinor()
        Returns:
        the minor version number contained in the header bytes.

      • getRevision

        public int getRevision()
        Returns:
        the revision version number contained in the header bytes.

      • isSaslHeader

        public boolean isSaslHeader()
        Returns:
        true if the contained header bytes represents a SASL header.

      • invoke

        public <E> void invoke​(AMQPHeader.HeaderHandler<E> handler,
                       E context)
        Invoke the correct handler based on whether this header is a SASL or AMQP header instance.
        Type Parameters:
        E - The type of the context object that accompanies the invocation.
        Parameters:
        handler - The AMQPHeader.HeaderHandler that should be invoked based on the header type.
        context - The context value to provide when signaling the header handler.