89 lines
3.2 KiB
C#
89 lines
3.2 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="OdbcConnectionOpen.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">Microsoft</owner>
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// <owner current="true" primary="false">Microsoft</owner>
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//------------------------------------------------------------------------------
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using System;
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using System.Data;
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using System.Data.Common;
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using System.Data.ProviderBase;
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using System.Threading;
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using SysTx = System.Transactions;
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namespace System.Data.Odbc {
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sealed internal class OdbcConnectionOpen : DbConnectionInternal {
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// Construct from a compiled connection string
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internal OdbcConnectionOpen(OdbcConnection outerConnection, OdbcConnectionString connectionOptions) {
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#if DEBUG
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try { // use this to help validate this object is only created after the following permission has been previously demanded in the current codepath
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if (null != outerConnection) {
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outerConnection.UserConnectionOptions.DemandPermission();
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}
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else {
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connectionOptions.DemandPermission();
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}
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}
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catch(System.Security.SecurityException) {
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System.Diagnostics.Debug.Assert(false, "unexpected SecurityException for current codepath");
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throw;
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}
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#endif
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OdbcEnvironmentHandle environmentHandle = OdbcEnvironment.GetGlobalEnvironmentHandle();
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outerConnection.ConnectionHandle = new OdbcConnectionHandle(outerConnection, connectionOptions, environmentHandle);
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}
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internal OdbcConnection OuterConnection {
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get {
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OdbcConnection outerConnection = (OdbcConnection)Owner;
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if (null == outerConnection)
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throw ODBC.OpenConnectionNoOwner();
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return outerConnection;
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}
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}
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override public string ServerVersion {
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get {
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return OuterConnection.Open_GetServerVersion();
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}
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}
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override protected void Activate(SysTx.Transaction transaction) {
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#if !COREFX
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OdbcConnection.ExecutePermission.Demand();
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#endif
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}
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override public DbTransaction BeginTransaction(IsolationLevel isolevel) {
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return BeginOdbcTransaction(isolevel);
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}
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internal OdbcTransaction BeginOdbcTransaction(IsolationLevel isolevel) {
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return OuterConnection.Open_BeginTransaction(isolevel);
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}
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override public void ChangeDatabase(string value) {
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OuterConnection.Open_ChangeDatabase(value);
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}
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override protected DbReferenceCollection CreateReferenceCollection() {
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return new OdbcReferenceCollection();
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}
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override protected void Deactivate() {
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NotifyWeakReference(OdbcReferenceCollection.Closing);
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}
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override public void EnlistTransaction(SysTx.Transaction transaction) {
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#if !COREFX
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OuterConnection.Open_EnlistTransaction(transaction);
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#endif
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}
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}
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}
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