/// <remarks>
/// public static variable Instance should hold the the singleton instance
/// based on the knowledge that custom factories without this instance variable
/// ms.net throws exception
/// <pre>
/// System.InvalidOperationException: The requested .Net Framework Data
/// Provider's implementation does not have an Instance field
/// of a System.Data.Common.DbProviderFactory derived type.
/// at System.Data.Common.DbProviderFactories.GetFactory(DataRow providerRow)
/// at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName)
/// </pre>
/// </remarks>
static OdbcFactory()
{
lock (lockStatic)
{
if (Instance == null)
Instance = new OdbcFactory ();
}
}
// create singleton connection factory.
internal static OdbcConnectionFactory GetSingleton (OdbcFactory pvdrFactory)
{
lock (lockobj)
{
if (Instance == null)
Instance = new OdbcConnectionFactory (pvdrFactory);
return Instance;
}
}
/// <remarks>
/// public static variable Instance should hold the the singleton instance
/// based on the knowledge that custom factories without this instance variable
/// ms.net throws exception
/// <pre>
/// System.InvalidOperationException: The requested .Net Framework Data
/// Provider's implementation does not have an Instance field
/// of a System.Data.Common.DbProviderFactory derived type.
/// at System.Data.Common.DbProviderFactories.GetFactory(DataRow providerRow)
/// at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName)
/// </pre>
/// </remarks>
static OdbcFactory()
{
lock (lockStatic)
{
if (Instance == null)
{
Instance = new OdbcFactory();
}
}
}
// create singleton connection factory.
internal static OdbcConnectionFactory GetSingleton(OdbcFactory pvdrFactory)
{
lock (lockobj)
{
if (Instance == null)
{
Instance = new OdbcConnectionFactory(pvdrFactory);
}
return(Instance);
}
}
/// <remarks>
/// public static variable Instance should hold the the singleton instance
/// based on the knowledge that custom factories without this instance variable
/// ms.net throws exception
/// <pre>
/// System.InvalidOperationException: The requested .Net Framework Data
/// Provider's implementation does not have an Instance field
/// of a System.Data.Common.DbProviderFactory derived type.
/// at System.Data.Common.DbProviderFactories.GetFactory(DataRow providerRow)
/// at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName)
/// </pre>
/// </remarks>
static OdbcFactory()
{
if (Instance == null)
Instance = new OdbcFactory ();
}