Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Map / Update / Internal / EntitySetRetriever.cs / 1 / EntitySetRetriever.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Data.Common.CommandTrees; using System.Data.Metadata.Edm; namespace System.Data.Mapping.Update.Internal { ////// Retrieves extents referenced in a mapping view /// internal class EntitySetRetriever : BasicExpressionVisitor { private List_entitySets; private EntitySetRetriever() { _entitySets = new List (); } /// /// Returns all extents referenced in the given expression tree. /// /// Tree to walk. ///Extents referenced in the tree. internal static IEnumerableGetEntitySets(DbExpression tree) { EntitySetRetriever retriever = new EntitySetRetriever(); if (null != tree) { tree.Accept(retriever); } return retriever._entitySets; } /// /// Adds visited extent to the list. /// /// Scan expression. public override void Visit(DbScanExpression e) { base.Visit(e); EntitySet entitySet = e.Target as EntitySet; if (null != entitySet) { _entitySets.Add(entitySet); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Data.Common.CommandTrees; using System.Data.Metadata.Edm; namespace System.Data.Mapping.Update.Internal { ////// Retrieves extents referenced in a mapping view /// internal class EntitySetRetriever : BasicExpressionVisitor { private List_entitySets; private EntitySetRetriever() { _entitySets = new List (); } /// /// Returns all extents referenced in the given expression tree. /// /// Tree to walk. ///Extents referenced in the tree. internal static IEnumerableGetEntitySets(DbExpression tree) { EntitySetRetriever retriever = new EntitySetRetriever(); if (null != tree) { tree.Accept(retriever); } return retriever._entitySets; } /// /// Adds visited extent to the list. /// /// Scan expression. public override void Visit(DbScanExpression e) { base.Visit(e); EntitySet entitySet = e.Target as EntitySet; if (null != entitySet) { _entitySets.Add(entitySet); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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