Weak reference and Strong reference
- by theband
package uk.co.bigroom.utils
{
import flash.utils.Dictionary;
/**
* Class to create a weak reference to an object. A weak reference
* is a reference that does not prevent the object from being
* garbage collected. If the object has been garbage collected
* then the get method will return null.
*/
public class WeakRef
{
private var dic:Dictionary;
/**
* The constructor - creates a weak reference.
*
* @param obj the object to create a weak reference to
*/
public function WeakRef( obj:* )
{
dic = new Dictionary( true );
dic[obj] = 1;
}
/**
* To get a strong reference to the object.
*
* @return a strong reference to the object or null if the
* object has been garbage collected
*/
public function get():*
{
for ( var item:* in dic )
{
return item;
}
return null;
}
}
}
In this Class, how they denote one as Weak Reference and one as Strong reference.
