Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Data / Microsoft / SqlServer / Server / SmiEventSink.cs / 2 / SmiEventSink.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- namespace Microsoft.SqlServer.Server { using System; using System.Data; using System.Data.Sql; // SqlEventSink is implemented by calling code. In all methods that accept // a SqlEventSink directly the sink must be able to handle multiple callbacks // without control returning from the original call. // Methods that do not accept SmiEventSync are (generally) ProcessEvent on // the SmiEventStream methods returning a SmiEventStream and methods that // are certain to never call to the server (most will, for in-proc back end). // Methods are commented with their corresponding TDS token // NOTE: Throwing from these methods will not usually produce the desired // effect -- the managed to native boundary will eat any exceptions, // and will cause a simple "Something bad happened" exception to be // thrown in the native to managed boundary... internal abstract class SmiEventSink { #region Active methods // Called at end of stream whether errors or no internal abstract void BatchCompleted( ); // Called zero or one time when output parameters are available (errors could prevent event from occuring) internal virtual void ParameterAvailable(SmiParameterMetaData metaData, SmiTypedGetterSetter paramValue, int ordinal) { // Adding as of V200 // Implement body with throw because there are only a couple of ways to get to this code: // 1) Client is calling this method even though the server negotiated for V3- and hasn't implemented V200 yet. // 2) Server didn't implement V200 on some interface, but negotiated V200+. System.Data.Common.ADP.InternalError( System.Data.Common.ADP.InternalErrorCode.UnimplementedSMIMethod ); } // Called when the server database context changes (ENVCHANGE token) internal abstract void DefaultDatabaseChanged( string databaseName ); // Called for messages and errors (ERROR and INFO tokens) internal abstract void MessagePosted ( int number, byte state, byte errorClass, string server, string message, string procedure, int lineNumber ); // Called for new resultset starting (COLMETADATA token) internal abstract void MetaDataAvailable( SmiQueryMetaData[] metaData, bool nextEventIsRow ); internal virtual void RowAvailable(SmiTypedGetterSetter rowData) { // Adding as of V200 // Implement body with throw because there are only a couple of ways to get to this code: // 1) Client is calling this method even though the server negotiated for V3- and hasn't implemented V200 yet. // 2) Server didn't implement V200 on some interface, but negotiated V200+. System.Data.Common.ADP.InternalError( System.Data.Common.ADP.InternalErrorCode.UnimplementedSMIMethod ); } // Called when any statement completes on server (DONE token) internal abstract void StatementCompleted( int rowsAffected ); // Called when a transaction is commited (ENVCHANGE token) internal abstract void TransactionCommitted( long transactionId ); // Called when a transaction is commited (ENVCHANGE token) internal abstract void TransactionDefected( long transactionId ); // Called when a transaction is commited (ENVCHANGE token) internal abstract void TransactionEnlisted( long transactionId ); // Called when a transaction is forcibly ended in the server, not requested // by the provider's batch (ENVCHANGE token) internal abstract void TransactionEnded( long transactionId ); // Called when a transaction is rolled back (ENVCHANGE token) internal abstract void TransactionRolledBack( long transactionId ); // Called when a transaction is started (ENVCHANGE token) internal abstract void TransactionStarted( long transactionId ); #endregion #region OBSOLETE METHODS #region OBSOLETED as of V200 but active in previous version // Called zero or one time when output parameters are available (errors could prevent event from occuring) internal virtual void ParametersAvailable( SmiParameterMetaData[] metaData, ITypedGettersV3 paramValues ) { // Adding as of V3 // Obsoleting as of V200 // Implement body with throw because there are only a couple of ways to get to this code: // 1) Client is calling this method even though the server negotiated for V200+ and dropped support for V200-. // 2) Server didn't implement V3- on some interface and negotiated V3-. System.Data.Common.ADP.InternalError( System.Data.Common.ADP.InternalErrorCode.UnimplementedSMIMethod ); } // Called when a new row arrives (ROW token) internal virtual void RowAvailable( ITypedGettersV3 rowData ) { // Adding as of V3 // Obsoleting as of V200 // Implement body with throw because there are only a couple of ways to get to this code: // 1) Client is calling this method even though the server negotiated for V200+ and dropped support for V200-. // 2) Server didn't implement V3- on some interface and negotiated V3-. System.Data.Common.ADP.InternalError( System.Data.Common.ADP.InternalErrorCode.UnimplementedSMIMethod ); } #endregion #region OBSOLETED and never shipped (without ObsoleteAttribute) // Called when a new row arrives (ROW token) internal virtual void RowAvailable( ITypedGetters rowData ) { // Obsoleting from SMI -- use end of dispose that takes an event sink instead. // Intended to be removed (along with inheriting IDisposable) prior to RTM. // Implement body with throw because there are only a couple of ways to get to this code: // 1) Client is calling this method even though the server negotiated for V3+ and dropped support for V2-. // 2) Server didn't implement V2- on some interface and negotiated V2-. System.Data.Common.ADP.InternalError( System.Data.Common.ADP.InternalErrorCode.UnimplementedSMIMethod ); } #endregion #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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