Package org.djutils.event.reference

Class WeakReference<T>

java.lang.Object
org.djutils.event.reference.Reference<T>
org.djutils.event.reference.WeakReference<T>
Type Parameters:
T - the type of the reference
public class WeakReference<T> extends Reference<T>
A WeakReference. The WeakReference extends the java.lang.ref.WeakReference and besides implementing the Reference interface no changes are defined.

Copyright (c) 2002-2025 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

  • Constructor Details

    • WeakReference

      public WeakReference(T referent)
      Creates a new weak reference that refers to the given object. The new reference is not registered with any queue.
      Parameters:
      referent - object the new weak reference will refer to

  • Method Details

    • get

      public final T get()
      Description copied from class: Reference
      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.
      Specified by:
      get in class Reference<T>
      Returns:
      The object to which this reference refers, or null if this reference object has been cleared.