public AdoResourceAccessor(IAdoResourceProvider resourceProvider,
IAdoNameResolver nameResolver, IAdoValueReader valueReader,
Transaction transaction)
{
if (resourceProvider == null)
{
throw new ArgumentNullException("resourceProvider");
}
if (nameResolver == null)
{
throw new ArgumentNullException("nameResolver");
}
if (valueReader == null)
{
throw new ArgumentNullException("valueReader");
}
this.resourceProvider = resourceProvider;
this.nameResolver = nameResolver;
this.valueReader = valueReader;
if (transaction == null)
{
this.dbConnection = resourceProvider.CreateConnection();
this.dbConnection.Open();
}
else
{
this.dbConnection = resourceProvider.CreateEnlistedConnection(transaction);
}
}
/// <summary>
/// Given a provider name locate the necessary <see cref="IAdoNameResolver" />
/// in the configuration file.
/// </summary>
/// <param name="providerName">
/// The name that uniquely identifies an ADO.NET provider.
/// </param>
/// <returns>
/// An <see cref="IAdoNameResolver" />.
/// </returns>
public static IAdoNameResolver Create(string providerName)
{
// locate any mappings for the specified provider
ProviderNameTypeMapping mapping =
DbProviderSettings.Get(AdoWorkflowPersistenceService.ConfigurationSectionName)
.NameResolvers.FindByProviderName(providerName);
IAdoNameResolver nameResolver = null;
if (mapping != null)
{
nameResolver = TypeUtilities.CreateInstance <IAdoNameResolver>(mapping.Type);
}
return(nameResolver);
}
public AdoResourceAccessor(IAdoResourceProvider resourceProvider,
IAdoNameResolver nameResolver, IAdoValueReader valueReader)
: this(resourceProvider, nameResolver, valueReader, null)
{
}
