//Copyright 2010 Microsoft Corporation
//
//Licensed 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.
namespace System.Data.Services.Common{
using System;
using System.Collections.ObjectModel;
using System.Data.Services.Client;
using System.Linq;
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1019:DefineAccessorsForAttributeArguments", Justification = "Accessors are available for processed input.")]
[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public sealed class DataServiceKeyAttribute : System.Attribute
{
private readonly ReadOnlyCollection<string> keyNames;
public DataServiceKeyAttribute(string keyName)
{
Util.CheckArgumentNull(keyName, "keyName");
Util.CheckArgumentNotEmpty(keyName, "KeyName");
this.keyNames = new ReadOnlyCollection<string>(new string[1] { keyName });
}
public DataServiceKeyAttribute(params string[] keyNames)
{
Util.CheckArgumentNull(keyNames, "keyNames");
if (keyNames.Length == 0 || keyNames.Any(f => f == null || f.Length == 0))
{
throw Error.Argument(Strings.DSKAttribute_MustSpecifyAtleastOnePropertyName, "keyNames");
}
this.keyNames = new ReadOnlyCollection<string>(keyNames);
}
public ReadOnlyCollection<string> KeyNames
{
get
{
return this.keyNames;
}
}
}
}
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