Low memory - function markAsRecoverable() management
Hello world
I'm trying to implement the management of low memory to my request. According to the white paper, we should call markAsRecoverable() inside the freeStaleObject() after to remove any reference. As a result, he has set an example like this
private boolean freeVector( Vector vector ) {
boolean dataFreed = false;
int size = vector.size();
for( int i = size - 1; i >= 0; i-- ) {
Object obj = vector.elementAt( i );
vector.removeElementAt( i );
LowMemoryManager.markAsRecoverable( obj );
dataFreed = true;
}
return dataFreed;
}
Instead of using removeAllElement(), the example of loop manually to each element to remove and mark the point.
I do not really get on this markAsRecoverable().
* What will happen if I do not invoke this markAsRecoverable?
* Why I have not markAsRecoverable() the entire vector?
* If I want to spend the Rassi Hashtable as in the example, I should markAsRecoverable() the key and value of each record?
The code in this example is not a real example. If you want to erase the whole vector you can just move the vector to markAsRecoverable. Adoption of the vector would be much faster and more efficient.
If you want to selectively remove certain elements in the vector, but not all, you can use the approach in the sample with a logic to choose the appropriate elements to remove.
Tags: BlackBerry Developers
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