/// <summary>
/// This option is intended for advanced users.
///
/// Configure when the DbContext should use mutations instead of DML. The default configuration
/// will use mutations for implicit transactions and DML for manual transactions. The default
/// configuration is the best options for most use cases.
///
/// This option can be set to MutationUsage.Always if your application experiences slow performance
/// for manual transactions that execute a large number of inserts/updates/deletes. Note that
/// setting this option to MutationUsage.Always will disable read-your-writes for manual transactions
/// in the DbContext.
/// </summary>
/// <param name="optionsBuilder">the optionsBuilder to configure</param>
/// <param name="mutationUsage">the configuration option to use for the DbContext</param>
/// <returns>the optionsBuilder</returns>
public static DbContextOptionsBuilder UseMutations(
this DbContextOptionsBuilder optionsBuilder,
MutationUsage mutationUsage)
{
GaxPreconditions.CheckNotNull(optionsBuilder, nameof(optionsBuilder));
var extension = GetOrCreateExtension(optionsBuilder).WithMutationUsage(mutationUsage);
((IDbContextOptionsBuilderInfrastructure)optionsBuilder).AddOrUpdateExtension(extension);
return(optionsBuilder);
}
internal SpannerSampleMutationUsageDbContext(string connectionString, MutationUsage mutationUsage) : base(connectionString)
{
MutationUsage = mutationUsage;
}