38 lines
1.5 KiB
C#
38 lines
1.5 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="ParameterPeekAheadValue.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">alazela</owner>
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// <owner current="true" primary="false">billin</owner>
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//------------------------------------------------------------------------------
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namespace System.Data.SqlClient {
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.SqlClient;
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using Microsoft.SqlServer.Server;
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// simple storage to contain objects that must be generated prior to sending data, but
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// that we cannot re-generate at the time of sending the data. The entire purpose is
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// to avoid long, complicated parameter lists that take every possible set of values.
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// Instead, a single peekahead object is passed in, encapsulating whatever sets are needed.
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//
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// Example:
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// When processing IEnumerable<SqlDataRecord>, we need to obtain the enumerator and
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// the first record during metadata generation (metadata is stored in the first record),
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// but to properly stream the value, we can't ask the IEnumerable for these objects again
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// when it's time to send the actual values.
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internal class ParameterPeekAheadValue {
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// Peekahead for IEnumerable<SqlDataRecord>
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internal IEnumerator<SqlDataRecord> Enumerator;
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internal SqlDataRecord FirstRecord;
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}
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}
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