Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Map / Update / Internal / UpdateExpressionVisitor.cs / 3 / UpdateExpressionVisitor.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Data.Common.CommandTrees; namespace System.Data.Mapping.Update.Internal { ////// Abstract implementation of node visitor that allows the specification of visit methods /// for different node types (VisitPre virtual methods) and evaluation of nodes with respect /// to the typed (TReturn) return values of their children. /// ////// This is not a general purpose class. It is tailored to the needs of the update pipeline. /// /// All virtual methods throw NotSupportedException (must be explicitly overridden by each visitor). /// ///Return type for the visitor internal abstract class UpdateExpressionVisitor: DbExpressionVisitor { /// /// Gets the name of this visitor for debugging and tracing purposes. /// protected abstract string VisitorName { get; } ////// Utility method to generate an exception when unsupported node types are encountered. /// /// Unsupported node ///Not supported exception protected NotSupportedException ConstructNotSupportedException(DbExpression node) { string nodeKind = null == node ? null : node.ExpressionKind.ToString(); return EntityUtil.NotSupported( System.Data.Entity.Strings.Update_UnsupportedExpressionKind(nodeKind, VisitorName)); } #region IExpressionVisitorMembers public override TReturn Visit(DbExpression expression) { if (null != expression) { return expression.Accept(this); } else { throw ConstructNotSupportedException(expression); } } public override TReturn Visit(DbAndExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbApplyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbArithmeticExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbCaseExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbCastExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbComparisonExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbConstantExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbCrossJoinExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbDerefExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbDistinctExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbElementExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbExceptExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbFilterExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbFunctionExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbEntityRefExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbRefKeyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbGroupByExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIntersectExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIsEmptyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIsNullExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIsOfExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbJoinExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbLikeExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbLimitExpression expression) { throw ConstructNotSupportedException(expression); } #if METHOD_EXPRESSION public override TReturn Visit(MethodExpression expression) { throw ConstructNotSupportedException(expression); } #endif public override TReturn Visit(DbNewInstanceExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbNotExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbNullExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbOfTypeExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbOrExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbParameterReferenceExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbProjectExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbPropertyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbQuantifierExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbRefExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbRelationshipNavigationExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbSkipExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbSortExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbTreatExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbUnionAllExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbVariableReferenceExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbScanExpression expression) { throw ConstructNotSupportedException(expression); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Data.Common.CommandTrees; namespace System.Data.Mapping.Update.Internal { ////// Abstract implementation of node visitor that allows the specification of visit methods /// for different node types (VisitPre virtual methods) and evaluation of nodes with respect /// to the typed (TReturn) return values of their children. /// ////// This is not a general purpose class. It is tailored to the needs of the update pipeline. /// /// All virtual methods throw NotSupportedException (must be explicitly overridden by each visitor). /// ///Return type for the visitor internal abstract class UpdateExpressionVisitor: DbExpressionVisitor { /// /// Gets the name of this visitor for debugging and tracing purposes. /// protected abstract string VisitorName { get; } ////// Utility method to generate an exception when unsupported node types are encountered. /// /// Unsupported node ///Not supported exception protected NotSupportedException ConstructNotSupportedException(DbExpression node) { string nodeKind = null == node ? null : node.ExpressionKind.ToString(); return EntityUtil.NotSupported( System.Data.Entity.Strings.Update_UnsupportedExpressionKind(nodeKind, VisitorName)); } #region IExpressionVisitorMembers public override TReturn Visit(DbExpression expression) { if (null != expression) { return expression.Accept(this); } else { throw ConstructNotSupportedException(expression); } } public override TReturn Visit(DbAndExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbApplyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbArithmeticExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbCaseExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbCastExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbComparisonExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbConstantExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbCrossJoinExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbDerefExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbDistinctExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbElementExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbExceptExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbFilterExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbFunctionExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbEntityRefExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbRefKeyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbGroupByExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIntersectExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIsEmptyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIsNullExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbIsOfExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbJoinExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbLikeExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbLimitExpression expression) { throw ConstructNotSupportedException(expression); } #if METHOD_EXPRESSION public override TReturn Visit(MethodExpression expression) { throw ConstructNotSupportedException(expression); } #endif public override TReturn Visit(DbNewInstanceExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbNotExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbNullExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbOfTypeExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbOrExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbParameterReferenceExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbProjectExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbPropertyExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbQuantifierExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbRefExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbRelationshipNavigationExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbSkipExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbSortExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbTreatExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbUnionAllExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbVariableReferenceExpression expression) { throw ConstructNotSupportedException(expression); } public override TReturn Visit(DbScanExpression expression) { throw ConstructNotSupportedException(expression); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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