CORE-POS/IS4C

#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;

namespace Newtonsoft.Json
{
    /// <summary>
    /// Instructs the <see cref="JsonSerializer"/> how to serialize the object.
    /// </summary>
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface, AllowMultiple = false)]
    public abstract class JsonContainerAttribute : Attribute
    {
        /// <summary>
        /// Gets or sets the id.
        /// </summary>
        /// <value>The id.</value>
        public string Id { get; set; }

        /// <summary>
        /// Gets or sets the title.
        /// </summary>
        /// <value>The title.</value>
        public string Title { get; set; }

        /// <summary>
        /// Gets or sets the description.
        /// </summary>
        /// <value>The description.</value>
        public string Description { get; set; }

        /// <summary>
        /// Gets the collection's items converter.
        /// </summary>
        /// <value>The collection's items converter.</value>
        public Type ItemConverterType { get; set; }

        /// <summary>
        /// The parameter list to use when constructing the JsonConverter described by ItemConverterType.
        /// If null, the default constructor is used.
        /// When non-null, there must be a constructor defined in the JsonConverter that exactly matches the number,
        /// order, and type of these parameters.
        /// </summary>
        /// <example>
        /// [JsonContainer(ItemConverterType = typeof(MyContainerConverter), ItemConverterParameters = new object[] { 123, "Four" })]
        /// </example>
        public object[] ItemConverterParameters { get; set; } 

        // yuck. can't set nullable properties on an attribute in C#
        // have to use this approach to get an unset default state
        internal bool? _isReference;
        internal bool? _itemIsReference;
        internal ReferenceLoopHandling? _itemReferenceLoopHandling;
        internal TypeNameHandling? _itemTypeNameHandling;

        /// <summary>
        /// Gets or sets a value that indicates whether to preserve object references.
        /// </summary>
        /// <value>
        ///     <c>true</c> to keep object reference; otherwise, <c>false</c>. The default is <c>false</c>.
        /// </value>
        public bool IsReference
        {
            get { return _isReference ?? default(bool); }
            set { _isReference = value; }
        }

        /// <summary>
        /// Gets or sets a value that indicates whether to preserve collection's items references.
        /// </summary>
        /// <value>
        ///     <c>true</c> to keep collection's items object references; otherwise, <c>false</c>. The default is <c>false</c>.
        /// </value>
        public bool ItemIsReference
        {
            get { return _itemIsReference ?? default(bool); }
            set { _itemIsReference = value; }
        }

        /// <summary>
        /// Gets or sets the reference loop handling used when serializing the collection's items.
        /// </summary>
        /// <value>The reference loop handling.</value>
        public ReferenceLoopHandling ItemReferenceLoopHandling
        {
            get { return _itemReferenceLoopHandling ?? default(ReferenceLoopHandling); }
            set { _itemReferenceLoopHandling = value; }
        }

        /// <summary>
        /// Gets or sets the type name handling used when serializing the collection's items.
        /// </summary>
        /// <value>The type name handling.</value>
        public TypeNameHandling ItemTypeNameHandling
        {
            get { return _itemTypeNameHandling ?? default(TypeNameHandling); }
            set { _itemTypeNameHandling = value; }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="JsonContainerAttribute"/> class.
        /// </summary>
        protected JsonContainerAttribute()
        {
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="JsonContainerAttribute"/> class with the specified container Id.
        /// </summary>
        /// <param name="id">The container Id.</param>
        protected JsonContainerAttribute(string id)
        {
            Id = id;
        }
    }
}