Reference (DJUTILS - Delft Java Utilities 1.06.25 API)

java.lang.Object
- org.djutils.event.ref.Reference<T>

Type Parameters:

T - the type of the reference

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

StrongReference, WeakReference
```
public abstract class Reference<T extends Serializable>
extends Object
implements Serializable
```
The Reference abstract class defines an indirect pointer to an object that can be serialized, in contrast with the Java Reference class, which is not serializable. References can be weak or strong.
Copyright (c) 2002-2021 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See for project information https://djutils.org. The DJUTILS project is distributed under a three-clause BSD-style license, which can be found at https://djutils.org/docs/license.html. This class was originally part of the DSOL project, see https://simulation.tudelft.nl/dsol/manual.

Author:

Peter Jacobs , Alexander Verbraeck

See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Reference()
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  abstract T get()
  Returns this reference object's referent.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Reference
```
public Reference()
```
- Method Detail
  - get
```
public abstract T get()
```
    Returns this reference object's referent. If this reference object has been cleared, either by the program or by the garbage collector, then this method returns null.
    
    Returns:
    
    The object to which this reference refers, or null if this reference object has been cleared.