TypeEvent

java.lang.Object
- ptolemy.actor.TypeEvent

All Implemented Interfaces:

DebugEvent
```
public class TypeEvent
extends java.lang.Object
implements DebugEvent
```
A TypeEvent represents a type change on a Typeable object. This event is generated by the Typeable whose type is changed, and is passed to the type change listeners to notify them about the change.

Since:

Ptolemy II 0.2

Version:

$Id$

Author:

Yuhong Xiong

See Also:

TypeListener

Pt.AcceptedRating:

Green (cxh)

Pt.ProposedRating:

Green (yuhong)

Constructor Summary

Constructors
Constructor	Description
`TypeEvent(Typeable typeable, Type oldType, Type newType)`	Construct a TypeEvent, with the specified Typeable and the old and new types.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Type`	`getNewType()`	Return the new type.
`Type`	`getOldType()`	Return the old type.
`NamedObj`	`getSource()`	Return the Typeable whose type is changed.
`java.lang.String`	`toString()`	Return a string description for this type change.

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

- Constructor Detail
  - TypeEvent
```
public TypeEvent(Typeable typeable,
                 Type oldType,
                 Type newType)
```
    Construct a TypeEvent, with the specified Typeable and the old and new types.
    
    Parameters:
    
    typeable - The Typeable whose type is changed.
    
    oldType - The type of the Typeable before the change.
    
    newType - The type of the Typeable after the change.
- Method Detail
  - getNewType
```
public Type getNewType()
```
    Return the new type.
    
    Returns:
    
    The type of the Typeable after the change.
  - getOldType
```
public Type getOldType()
```
    Return the old type.
    
    Returns:
    
    The type of the Typeable before the change.
  - getSource
```
public NamedObj getSource()
```
    Return the Typeable whose type is changed.
    
    Specified by:
    
    getSource in interface DebugEvent
    
    Returns:
    
    The Typeable whose type is changed.
  - toString
```
public java.lang.String toString()
```
    Return a string description for this type change. The string is "The type on typeable has changed from old type to new type", where typeable is the name of the Typeable, and old type and new type are the string representation of the types.
    
    Specified by:
    
    toString in interface DebugEvent
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    A string description for this type change.