protected static IEnumerable <PropertyInfo> GetReadableProperties(Type type, IDbObjectDescriptor descriptor)
{
if (ReadableProperties.ContainsKey(type))
{
return(ReadableProperties[type]);
}
lock (CacheLock)
{
if (ReadableProperties.ContainsKey(type))
{
return(ReadableProperties[type]);
}
var properties = type.GetProperties()
.Where(p => descriptor.CanRead(p.Name));
ReadableProperties.Add(type, properties);
return(properties);
}
}
/// <summary>
/// Construct a new DbLayer
/// </summary>
/// <param name="dbInterface">An interface to an underlying database</param>
/// <param name="descriptor">Metadata to enable mapping T's to database tables</param>
/// <param name="mapper">An object-relational mapper</param>
protected DbLayer(IDbInterface <TDbParameter> dbInterface, IDbObjectDescriptor descriptor, IDbMapper <T> mapper)
{
DbInterface = dbInterface ?? throw new ArgumentNullException(nameof(dbInterface));
Descriptor = descriptor ?? throw new ArgumentNullException(nameof(descriptor));
Mapper = mapper ?? throw new ArgumentNullException(nameof(mapper));
}
/// <summary>
/// Construct a new DbMapper
/// </summary>
/// <param name="descriptor">Metadata to enable mapping T's to database tables</param>
public DbMapper(IDbObjectDescriptor descriptor)
{
Descriptor = descriptor ?? throw new ArgumentNullException(nameof(descriptor));
}
