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path: root/qpid/dotnet/Qpid.Common/Framing/IContentHeaderProperties.cs
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/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */
using Apache.Qpid.Buffer;

namespace Apache.Qpid.Framing
{
    /// <summary>
    /// There will be an implementation of this interface for each content type. All content types have associated
    /// header properties and this provides a way to encode and decode them.
    /// </summary>    
    public interface IContentHeaderProperties
    {
        /// <summary>
        /// Writes the property list to the buffer, in a suitably encoded form.
        /// </summary>
        /// <param name="buffer">The buffer to write to</param>
        void WritePropertyListPayload(ByteBuffer buffer);

        /// <summary>
        /// Populates the properties from buffer.
        /// </summary>
        /// <param name="buffer">The buffer to read from.</param>
        /// <param name="propertyFlags">The property flags.</param>
        /// <exception cref="AMQFrameDecodingException">Thrown when the buffer does not contain valid data</exception>
        void PopulatePropertiesFromBuffer(ByteBuffer buffer, ushort propertyFlags);

        /// <summary>
        /// Gets the size of the encoded property list in bytes.
        /// </summary>
        /// <value>The size of the property list in bytes</value>        
        uint PropertyListSize
        {
            get;
        }

        /// <summary>
        /// Gets the property flags. Property flags indicate which properties are set in the list. The
        /// position and meaning of each flag is defined in the protocol specification for the particular
        /// content type with which these properties are associated.
        /// </summary>
        /// <value>the flags as an unsigned integer</value>
        ushort PropertyFlags
        {
            get;
        }
    }
}