74 lines
2.4 KiB
C#
74 lines
2.4 KiB
C#
//---------------------------------------------------------------------
|
|
// <copyright file="DbModificationCommandTree.cs" company="Microsoft">
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
|
// </copyright>
|
|
//
|
|
// @owner [....], [....]
|
|
// @backupOwner [....]
|
|
//---------------------------------------------------------------------
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
|
|
using System.Data.Metadata.Edm;
|
|
using System.Data.Common.CommandTrees.Internal;
|
|
using System.Data.Common.Utils;
|
|
using System.Linq;
|
|
|
|
namespace System.Data.Common.CommandTrees
|
|
{
|
|
/// <summary>
|
|
/// Represents a DML operation expressed as a canonical command tree
|
|
/// </summary>
|
|
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Db")]
|
|
public abstract class DbModificationCommandTree : DbCommandTree
|
|
{
|
|
private readonly DbExpressionBinding _target;
|
|
private System.Collections.ObjectModel.ReadOnlyCollection<DbParameterReferenceExpression> _parameters;
|
|
|
|
internal DbModificationCommandTree(MetadataWorkspace metadata, DataSpace dataSpace, DbExpressionBinding target)
|
|
: base(metadata, dataSpace)
|
|
{
|
|
EntityUtil.CheckArgumentNull(target, "target");
|
|
|
|
this._target = target;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the <see cref="DbExpressionBinding"/> that specifies the target table for the DML operation.
|
|
/// </summary>
|
|
public DbExpressionBinding Target
|
|
{
|
|
get
|
|
{
|
|
return _target;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns true if this modification command returns a reader (for instance, to return server generated values)
|
|
/// </summary>
|
|
internal abstract bool HasReader
|
|
{
|
|
get;
|
|
}
|
|
|
|
internal override IEnumerable<KeyValuePair<string, TypeUsage>> GetParameters()
|
|
{
|
|
if (this._parameters == null)
|
|
{
|
|
this._parameters = ParameterRetriever.GetParameters(this);
|
|
}
|
|
return this._parameters.Select(p => new KeyValuePair<string, TypeUsage>(p.ParameterName, p.ResultType));
|
|
}
|
|
|
|
internal override void DumpStructure(ExpressionDumper dumper)
|
|
{
|
|
if (this.Target != null)
|
|
{
|
|
dumper.Dump(this.Target, "Target");
|
|
}
|
|
}
|
|
}
|
|
}
|