// checks whether a given globally identified entities from a given document are equal or not
private bool AreEqual <TEntity>(IStonDocument document, IStonEntityEquivalenceComparer comparer, string id1, string id2)
where TEntity : class, IStonEntity
{
var e1 = id1 != null?document.GetGlobalEntity(id1) : null;
var e2 = id2 != null?document.GetGlobalEntity(id2) : null;
if (typeof(TEntity) == typeof(IStonValuedEntity))
{
return(comparer.Equals(e1 as IStonValuedEntity, e2 as IStonValuedEntity));
}
else if (typeof(TEntity) == typeof(IStonSimpleEntity))
{
return(comparer.Equals(e1 as IStonSimpleEntity, e2 as IStonSimpleEntity));
}
else if (typeof(TEntity) == typeof(IStonComplexEntity))
{
return(comparer.Equals(e1 as IStonComplexEntity, e2 as IStonComplexEntity));
}
else if (typeof(TEntity) == typeof(IStonReferenceEntity))
{
return(comparer.Equals(e1 as IStonReferenceEntity, e2 as IStonReferenceEntity));
}
else
{
return(comparer.Equals(e1, e2));
}
}
/// <summary>
/// Creates a new STON member binding keys equivalence comparer, using a given entities equivalence comparer for index key parameters.
/// </summary>
/// <param name="indexParameterComparer">The entities equivalence comparer used for index key parameters.</param>
public StonBindingKeyEquivalenceComparer(IStonEntityEquivalenceComparer indexParameterComparer)
{
if (indexParameterComparer == null)
{
throw new ArgumentNullException("indexParameterComparer");
}
IndexParameterComparer = indexParameterComparer;
}
