InstanceOpener

All Known Implementing Classes:

Configuration
```
public interface InstanceOpener
```
An interface that is used to open an instance of a NamedObj.
This interface exists so that ModalController and ModalRefinement need not depend on Configuration.

Since:

Ptolemy II 10.0

Version:

$Id$

Author:

Christopher Brooks

Pt.AcceptedRating:

Yellow (cxh)

Pt.ProposedRating:

Green (cxh)

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void openAnInstance(NamedObj entity)
  Open the specified instance.

- Method Detail
  - openAnInstance
```
void openAnInstance(NamedObj entity)
             throws IllegalActionException,
                    NameDuplicationException
```
    Open the specified instance. A derived class looks for the instance, and if the instance already has open tableaux, then put those in the foreground Otherwise, create a new tableau and if necessary, a new effigy. Unless there is a more natural container for the effigy (e.g. it is a hierarchical model), then if a new effigy is created, it is put into the directory of the configuration. Any new tableau created will be contained by that effigy.
    
    Parameters:
    
    entity - The entity to open.
    
    Throws:
    
    IllegalActionException - If constructing an effigy or tableau fails.
    
    NameDuplicationException - If a name conflict occurs (this should not be thrown).