DbInsertCommandTree.cs source code in C# .NET

                        Code:
                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Common / CommandTrees / DbInsertCommandTree.cs / 3 / DbInsertCommandTree.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....], [....]
//--------------------------------------------------------------------- 
 
using System;
using System.Collections.Generic; 

using System.Data.Metadata.Edm;
using System.Data.Common.CommandTrees.Internal;
using System.Data.Common.Utils; 
using System.Diagnostics;
using System.Collections.ObjectModel; 
 
namespace System.Data.Common.CommandTrees
{ 
    /// 
    /// Represents a single row insert operation expressed as a canonical command tree.
    /// When the  property is set, the command returns a reader; otherwise,
    /// it returns a scalar value indicating the number of rows affected. 
    /// 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Db")] 
    public sealed class DbInsertCommandTree : DbModificationCommandTree 
    {
        private IList _setClauses; 
        private DbExpression _returning;

        internal DbInsertCommandTree(MetadataWorkspace metadata, DataSpace dataSpace)
            : base(metadata, dataSpace) 
        {
        } 
 
        /// 
        /// Gets set clauses determining values of columns in the inserted row. 
        /// 
        public IList SetClauses
        {
            get 
            {
                return _setClauses; 
            } 
        }
 
        /// 
        /// Gets an  that specifies a projection of results to be returned based on the modified rows.
        /// If null, indicates no results should be returned from this command.
        ///  
        /// 
        /// The returning projection includes only the following elements: 
        ///  
        /// NewInstance expression
        /// Property expression 
        /// 
        /// 
        public DbExpression Returning
        { 
            get
            { 
                return _returning; 
            }
 
            internal set
            {
                _returning = value;
            } 
        }
 
        internal override DbCommandTreeKind CommandTreeKind 
        {
            get { return DbCommandTreeKind.Insert; } 
        }

        internal override bool HasReader
        { 
            get { return null != Returning; }
        } 
 
        internal override void DumpStructure(ExpressionDumper dumper)
        { 
            base.DumpStructure(dumper);

            dumper.Begin("SetClauses");
            foreach (DbModificationClause clause in this.SetClauses) 
            {
                if (null != clause) 
                { 
                    clause.DumpStructure(dumper);
                } 
            }
            dumper.End("SetClauses");

            if (null != this.Returning) 
            {
                dumper.Dump(this.Returning, "Returning"); 
            } 
        }
 
        internal override string PrintTree(ExpressionPrinter printer)
        {
            return printer.Print(this);
        } 

        internal override void Replace(ExpressionReplacer replacer) 
        { 
            using (new EntityBid.ScopeAuto(" %d#", this.ObjectId))
            { 
                throw EntityUtil.NotSupported();
            }
        }
 
        /// 
        /// Initializes set clauses on this command tree. 
        ///  
        /// Set clauses.
        internal void InitializeSetClauses(List setClauses) 
        {
            Debug.Assert(null != setClauses, "setClauses cannot be null");
            _setClauses = setClauses.AsReadOnly();
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....], [....]
//--------------------------------------------------------------------- 
 
using System;
using System.Collections.Generic; 

using System.Data.Metadata.Edm;
using System.Data.Common.CommandTrees.Internal;
using System.Data.Common.Utils; 
using System.Diagnostics;
using System.Collections.ObjectModel; 
 
namespace System.Data.Common.CommandTrees
{ 
    /// 
    /// Represents a single row insert operation expressed as a canonical command tree.
    /// When the  property is set, the command returns a reader; otherwise,
    /// it returns a scalar value indicating the number of rows affected. 
    /// 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Db")] 
    public sealed class DbInsertCommandTree : DbModificationCommandTree 
    {
        private IList _setClauses; 
        private DbExpression _returning;

        internal DbInsertCommandTree(MetadataWorkspace metadata, DataSpace dataSpace)
            : base(metadata, dataSpace) 
        {
        } 
 
        /// 
        /// Gets set clauses determining values of columns in the inserted row. 
        /// 
        public IList SetClauses
        {
            get 
            {
                return _setClauses; 
            } 
        }
 
        /// 
        /// Gets an  that specifies a projection of results to be returned based on the modified rows.
        /// If null, indicates no results should be returned from this command.
        ///  
        /// 
        /// The returning projection includes only the following elements: 
        ///  
        /// NewInstance expression
        /// Property expression 
        /// 
        /// 
        public DbExpression Returning
        { 
            get
            { 
                return _returning; 
            }
 
            internal set
            {
                _returning = value;
            } 
        }
 
        internal override DbCommandTreeKind CommandTreeKind 
        {
            get { return DbCommandTreeKind.Insert; } 
        }

        internal override bool HasReader
        { 
            get { return null != Returning; }
        } 
 
        internal override void DumpStructure(ExpressionDumper dumper)
        { 
            base.DumpStructure(dumper);

            dumper.Begin("SetClauses");
            foreach (DbModificationClause clause in this.SetClauses) 
            {
                if (null != clause) 
                { 
                    clause.DumpStructure(dumper);
                } 
            }
            dumper.End("SetClauses");

            if (null != this.Returning) 
            {
                dumper.Dump(this.Returning, "Returning"); 
            } 
        }
 
        internal override string PrintTree(ExpressionPrinter printer)
        {
            return printer.Print(this);
        } 

        internal override void Replace(ExpressionReplacer replacer) 
        { 
            using (new EntityBid.ScopeAuto(" %d#", this.ObjectId))
            { 
                throw EntityUtil.NotSupported();
            }
        }
 
        /// 
        /// Initializes set clauses on this command tree. 
        ///  
        /// Set clauses.
        internal void InitializeSetClauses(List setClauses) 
        {
            Debug.Assert(null != setClauses, "setClauses cannot be null");
            _setClauses = setClauses.AsReadOnly();
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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DbInsertCommandTree.cs source code in C# .NET

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