/// <summary>
/// Modifies the collection of related entities for a specific relationship.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="propertyName"></param>
/// <param name="relationshipSchemaName"></param>
/// <param name="primaryEntityRole"></param>
/// <param name="entities"></param>
/// <remarks>
/// Raises the property change events.
/// </remarks>
protected virtual void SetRelatedEntities <TEntity>(string propertyName, string relationshipSchemaName, EntityRole?primaryEntityRole, IEnumerable <TEntity> entities)
where TEntity : Entity
{
propertyName.ThrowOnNullOrWhitespace("propertyName");
relationshipSchemaName.ThrowOnNullOrWhitespace("relationshipSchemaName");
// check that the new value is different from the current value
// TODO: perform comparison
RaisePropertyChanging(propertyName);
EntityExtensions.SetRelatedEntities(this, relationshipSchemaName, primaryEntityRole, entities);
RaisePropertyChanged(propertyName);
}
/// <summary>
/// Modifies the value of an attribute.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="propertyName"></param>
/// <param name="attributeLogicalName"></param>
/// <param name="entityLogicalName"></param>
/// <param name="value"></param>
/// <remarks>
/// Raises the property change events.
/// </remarks>
protected virtual void SetAttributeValue <T>(string propertyName, string attributeLogicalName, string entityLogicalName, object value)
{
propertyName.ThrowOnNullOrWhitespace("propertyName");
attributeLogicalName.ThrowOnNullOrWhitespace("attributeLogicalName");
// check that the new value is different from the current value
if (Equals(GetAttributeValue <object>(attributeLogicalName), value))
{
return;
}
RaisePropertyChanging(propertyName);
EntityExtensions.SetAttributeValue <T>(this, attributeLogicalName, entityLogicalName, value);
RaisePropertyChanged(propertyName);
}
/// <summary>
/// Retrieves the value of a sequence attribute.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="attributeLogicalName"></param>
/// <returns></returns>
public virtual IEnumerable <T> GetAttributeCollectionValue <T>(string attributeLogicalName)
where T : Entity
{
return(EntityExtensions.GetAttributeCollectionValue <T>(this, attributeLogicalName));
}
/// <summary>
/// Retrieves the value of an attribute.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="attributeLogicalName"></param>
/// <returns></returns>
public override T GetAttributeValue <T>(string attributeLogicalName)
{
return(EntityExtensions.GetAttributeValue <T>(this, attributeLogicalName));
}
