Thanks David :-)
On 05/07/2012 11:45 AM, David Holmes wrote:
Hi Charles,
On 7/05/2012 1:05 PM, Charles Lee wrote:
Does anyone interested in this issue?
Interest and time are two different things :)
A shorter form would be:
"If the values in the map do not rely on the map holding strong
references to them, then one way to deal with this is ...
David
On 05/03/2012 02:52 PM, Charles Lee wrote:
Hi guys,
In the Implementation notes of WeakHashMap[1], says:
/One way to deal with this is to wrap values themselves within
WeakReferences before inserting, as in: m.put(key, new
WeakReference(value)), and then unwrapping upon each get./
However, it is not concise and a little misleading. Because the value
in the WeakReference can be GC'd if there are no strong reference to
it. This behaviour surprises some customers.
How about add a statement like [2]:
/However, as the use of WeakReference in this manner will not prevent
value objects from being GC'd, this approach is only useful when
entries in the map are not relied upon for keeping the underlying
value objects "live"./
[1]:
http://docs.oracle.com/javase/7/docs/api/java/util/WeakHashMap.html
[2]: http://cr.openjdk.java.net/~littlee/7166055/webrev.00/
<http://cr.openjdk.java.net/%7Elittlee/7166055/webrev.00/>
--
Yours Charles
