InsertSelectStatement.cs

Go to the documentation of this file.

// 
//  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 System.Collections.Generic;
using System.Linq;

using Deveel.Data.Serialization;
using Deveel.Data.Sql.Expressions;
using Deveel.Data.Sql.Query;
using Deveel.Data.Sql.Tables;

namespace Deveel.Data.Sql.Statements {
    public sealed class InsertSelectStatement : SqlStatement, IPreparableStatement {
        public InsertSelectStatement(string tableName, IEnumerable<string> columnNames, SqlQueryExpression queryExpression) {
            TableName = tableName;
            ColumnNames = columnNames;
            QueryExpression = queryExpression;
        }

        public string TableName { get; private set; }

        public IEnumerable<string> ColumnNames { get; private set; }

        public SqlQueryExpression QueryExpression { get; private set; }

        IStatement IPreparableStatement.Prepare(IRequest request) {
            var tableName = request.Query.ResolveTableName(TableName);
            if (tableName == null)
                throw new ObjectNotFoundException(ObjectName.Parse(TableName));

            var columns = new string[0];
            if (ColumnNames != null)
                columns = ColumnNames.ToArray();

            // TODO: Verify the columns!!!

            var queryPlan = request.Context.QueryPlanner().PlanQuery(new QueryInfo(request, QueryExpression));
            return new Prepared(tableName, columns, queryPlan);
        }

        #region PreparedInsertStatement

        [Serializable]
        class Prepared : SqlStatement {
            internal Prepared(ObjectName tableName, string[] columnNames, IQueryPlanNode queryPlan) {
                TableName = tableName;
                ColumnNames = columnNames;
                QueryPlan = queryPlan;
            }

            private Prepared(ObjectData data) {
                TableName = data.GetValue<ObjectName>("TableName");
                QueryPlan = data.GetValue<IQueryPlanNode>("QueryPlan");
                ColumnNames = data.GetValue<string[]>("ColumnNames");
            }

            public ObjectName TableName { get; private set; }

            public IQueryPlanNode QueryPlan { get; private set; }

            public string[] ColumnNames { get; private set; }

            protected override void GetData(SerializeData data) {
                data.SetValue("TableName", TableName);
                data.SetValue("QueryPlan", QueryPlan);
                data.SetValue("ColumnNames", ColumnNames);
            }

            protected override void ExecuteStatement(ExecutionContext context) {
                throw new NotImplementedException();
            }
        }

        #endregion
    }
}