BackwardCompatibility

java.lang.Object
- ptolemy.moml.filter.BackwardCompatibility

```
public class BackwardCompatibility
extends java.lang.Object
```
Return a list where each element is a backward compatibility filter to be applied by the MoMLParser.
When this class is registered with
```
 MoMLParser.addMoMLFilters(BackwardCompatibility.allFilters())
 
```
method, it will cause MoMLParser to filter so that models from earlier releases will run in the current release.
Since:

Ptolemy II 2.0

Version:

$Id$

Author:

Christopher Hylands, Edward A. Lee

See Also:

MoMLFilter

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Red (cxh)

Constructor Summary

Constructors
Constructor Description

BackwardCompatibility()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`addFilter(MoMLFilter filter)`	Add a MoMLFilter to the list of filters.
`static java.util.List`	`allFilters()`	Return a shallow copy of the list where each element of the list is a MoMLFilter to be applied to handle backward compatibility.
`static void`	`clear()`	Clear the list of filters.
`java.lang.String`	`toString()`	Return a string that describes all the filters.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - BackwardCompatibility
```
public BackwardCompatibility()
```
- Method Detail
  - addFilter
```
public static void addFilter(MoMLFilter filter)
```
    Add a MoMLFilter to the list of filters.
    
    Parameters:
    
    filter - The filter to be added.
  - allFilters
```
public static java.util.List allFilters()
```
    Return a shallow copy of the list where each element of the list is a MoMLFilter to be applied to handle backward compatibility.
    
    Returns:
    
    a list of all the filters.
  - clear
```
public static void clear()
```
    Clear the list of filters.
  - toString
```
public java.lang.String toString()
```
    Return a string that describes all the filters.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    the String that describes all the filters and that ends with a newline.