internal TikListMerge(ITikConnection connection, IEnumerable <TEntity> expected, IEnumerable <TEntity> original)
{
_connection = connection;
_metadata = TikEntityMetadataCache.GetMetadata <TEntity>();
_expected = expected;
_original = original;
}
/// <summary>
/// .ctor
/// </summary>
/// <param name="owner">Metadata of the owning entity.</param>
/// <param name="propertyInfo">PropertyInfo of the accessed entity property.</param>
public TikEntityPropertyAccessor(TikEntityMetadata owner, PropertyInfo propertyInfo)
{
_owner = owner;
PropertyInfo = propertyInfo;
//From property code
PropertyName = propertyInfo.Name;
PropertyType = propertyInfo.PropertyType;
//From TikPropertyAttribute attribute
var propertyAttribute = propertyInfo.GetCustomAttribute<TikPropertyAttribute>(true);
if (propertyAttribute == null)
throw new ArgumentException("Property must be decorated by TikPropertyAttribute.", "propertyInfo");
FieldName = propertyAttribute.FieldName;
_isReadOnly = (propertyInfo.GetSetMethod() == null) || (!propertyInfo.CanWrite) || (propertyAttribute.IsReadOnly);
IsMandatory = propertyAttribute.IsMandatory;
if (propertyAttribute.DefaultValue != null)
DefaultValue = propertyAttribute.DefaultValue;
else
{
if (PropertyType.IsValueType)
DefaultValue = ConvertToString(Activator.CreateInstance(PropertyType)); //default value of value type. for example: (default)int
else
DefaultValue = "";
}
UnsetOnDefault = propertyAttribute.UnsetOnDefault;
}
private static void EnsureHasIdProperty(TikEntityMetadata metadata)
{
if (!metadata.HasIdProperty)
{
throw new InvalidOperationException(string.Format("Can not update/delete non-sigleton entity which doesn't contains property for '{0}' field.", TikSpecialProperties.Id));
}
}
private static void EnsureSupportsOrdering(TikEntityMetadata entityMetadata)
{
if (!entityMetadata.IsOrdered)
{
throw new InvalidOperationException("Can not move entity without ordering support.");
}
}
private static void EnsureNotReadonlyEntity(TikEntityMetadata entityMetadata)
{
if (entityMetadata.IsReadOnly)
{
throw new InvalidOperationException("Can not save R/O entity.");
}
}
/// <summary>
/// .ctor
/// </summary>
/// <param name="owner">Metadata of the owning entity.</param>
/// <param name="propertyInfo">PropertyInfo of the accessed entity property.</param>
public TikEntityPropertyAccessor(TikEntityMetadata owner, PropertyInfo propertyInfo)
{
_owner = owner;
PropertyInfo = propertyInfo;
//From property code
PropertyName = propertyInfo.Name;
PropertyType = propertyInfo.PropertyType;
//From TikPropertyAttribute attribute
var propertyAttribute = propertyInfo.GetCustomAttribute <TikPropertyAttribute>(true);
if (propertyAttribute == null)
{
throw new ArgumentException("Property must be decorated by TikPropertyAttribute.", "propertyInfo");
}
FieldName = propertyAttribute.FieldName;
_isReadOnly =
#if NET20 || NET35 || NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471
(propertyInfo.GetSetMethod() == null)
#else
(propertyInfo.SetMethod == null)
#endif
|| (!propertyInfo.CanWrite) || (propertyAttribute.IsReadOnly);
IsMandatory = propertyAttribute.IsMandatory;
if (propertyAttribute.DefaultValue != null)
{
DefaultValue = propertyAttribute.DefaultValue;
}
else
{
#if NET20 || NET35 || NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471
if (PropertyType.IsValueType)
#else
if (PropertyType.GetTypeInfo().IsValueType)
#endif
{ DefaultValue = ConvertToString(Activator.CreateInstance(PropertyType)); //default value of value type. for example: (default)int
}
else
{
DefaultValue = "";
}
}
UnsetOnDefault = propertyAttribute.UnsetOnDefault;
}
/// <summary>
/// Gets (or creates new) <typeparamref name="TEntity"/> metadata via reflection of its attributes.
/// </summary>
/// <typeparam name="TEntity">Type of the entity.</typeparam>
/// <returns>Entity metadata used by entity mapper.</returns>
public static TikEntityMetadata GetMetadata <TEntity>()
{
Type key = typeof(TEntity);
TikEntityMetadata result;
if (!_cache.TryGetValue(key, out result))
{
lock (_lockObj)
{
if (!_cache.TryGetValue(key, out result))
{
result = new TikEntityMetadata(typeof(TEntity));
_cache.Add(key, result);
}
}
}
return(result);
}
