/// <summary>
/// Merges this annotation with the given annotation and returns a new annotation containing the merged indexes.
/// </summary>
/// <remarks>
/// Each index annotation contains at most one <see cref="T:System.ComponentModel.DataAnnotations.Schema.IndexAttribute" /> with a given name.
/// The merged annotation will contain IndexAttributes from both this and the other annotation.
/// If both annotations contain an IndexAttribute with the same name, then the merged annotation
/// will contain one IndexAttribute with that name.
/// </remarks>
/// <param name="other">The annotation to merge with this one.</param>
/// <returns>A new annotation with indexes from both annotations merged.</returns>
/// <exception cref="T:System.InvalidOperationException">
/// The other annotation contains indexes that are not compatible with indexes in this annotation.
/// </exception>
public virtual object MergeWith(object other)
{
if (object.ReferenceEquals((object)this, other) || other == null)
{
return((object)this);
}
IndexAnnotation indexAnnotation = other as IndexAnnotation;
if (indexAnnotation == null)
{
throw new ArgumentException(Strings.IncompatibleTypes((object)other.GetType().Name, (object)typeof(IndexAnnotation).Name));
}
List <IndexAttribute> list = this._indexes.ToList <IndexAttribute>();
IndexAnnotation.MergeLists((ICollection <IndexAttribute>)list, (IEnumerable <IndexAttribute>)indexAnnotation._indexes, (PropertyInfo)null);
return((object)new IndexAnnotation((IEnumerable <IndexAttribute>)list));
}
internal IndexAnnotation(PropertyInfo propertyInfo, IEnumerable <IndexAttribute> indexAttributes)
{
Check.NotNull <IEnumerable <IndexAttribute> >(indexAttributes, nameof(indexAttributes));
IndexAnnotation.MergeLists((ICollection <IndexAttribute>) this._indexes, indexAttributes, propertyInfo);
}
/// <summary>
/// Creates a new annotation for the given collection of indexes.
/// </summary>
/// <param name="indexAttributes">Index attributes representing one or more indexes.</param>
public IndexAnnotation(IEnumerable <IndexAttribute> indexAttributes)
{
Check.NotNull <IEnumerable <IndexAttribute> >(indexAttributes, nameof(indexAttributes));
IndexAnnotation.MergeLists((ICollection <IndexAttribute>) this._indexes, indexAttributes, (PropertyInfo)null);
}