AddConstraintAction.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.Serialization;
using Deveel.Data.Sql.Expressions;

namespace Deveel.Data.Sql.Statements {
    [Serializable]
    public sealed class AddConstraintAction : IAlterTableAction, IPreparable {
        public AddConstraintAction(SqlTableConstraint constraint) {
            if (constraint == null)
                throw new ArgumentNullException("constraint");

            Constraint = constraint;
        }

        private AddConstraintAction(ObjectData data) {
            Constraint = data.GetValue<SqlTableConstraint>("Constraint");
        }

        public SqlTableConstraint Constraint { get; private set; }

        object IPreparable.Prepare(IExpressionPreparer preparer) {
            var constraint = (SqlTableConstraint) (Constraint as IPreparable).Prepare(preparer);
            return new AddConstraintAction(constraint);
        }

        AlterTableActionType IAlterTableAction.ActionType {
            get { return AlterTableActionType.AddConstraint; }
        }

        void ISerializable.GetData(SerializeData data) {
            data.SetValue("Constraint", Constraint);
        }
    }
}