ExpressionReference.cs

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// 
//  Copyright 2010-2015 Deveel
// 
//    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.
//

using System;

using Deveel.Data.Sql.Expressions;

namespace Deveel.Data.Sql.Query {
    public sealed class ExpressionReference {
        public ExpressionReference(SqlExpression expression, string @alias) {
            if (expression == null) 
                throw new ArgumentNullException("expression");

            Alias = alias;
            Expression = expression;
        }

        public SqlExpression Expression { get; private set; }

        public string Alias { get; private set; }
    }
}