/// <summary>
/// The behavior is as follow:
/// Creates copy of EntityTypes and relationships between them from clipboard format in the Entity Model if:
/// - The entity-types and/or relationships do not exist in the model.
/// - The passed in diagram parameter is null.
/// OR
/// Create the associated diagram items in the Diagram Model if:
/// - The diagram is not null AND entity-types and/or relationships exist in the model AND the corresponding diagram items do not exist in the diagram.
/// </summary>
/// <param name="diagram"></param>
/// <param name="clipboardEntities"></param>
/// <param name="modelSpace"></param>
internal CopyEntitiesCommand(Diagram diagram, EntitiesClipboardFormat clipboardEntities, ModelSpace modelSpace)
{
_diagram = diagram;
_clipboardEntities = clipboardEntities;
_modelSpace = modelSpace;
}
/// <summary>
/// Creates a copy of EntityTypes and relationships between them from clipboard format
/// </summary>
/// <param name="property"></param>
internal CopyEntitiesCommand(EntitiesClipboardFormat clipboardEntities, ModelSpace modelSpace)
: this(null, clipboardEntities, modelSpace)
{
_clipboardEntities = clipboardEntities;
_modelSpace = modelSpace;
}
