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package tim.prune.load;
import java.io.File;
/**
* Holds a lock on the given file and performs some action
* when all locks are released
*/
public class FileToBeLoaded
{
private final File _file;
private final Runnable _afterwards;
private int _ownerCounter;
public FileToBeLoaded(File inFile, Runnable inAfterwards)
{
_file = inFile;
_afterwards = inAfterwards;
_ownerCounter = 1;
}
public File getFile() {
return _file;
}
/** Accept ownership, perhaps for use in different thread */
public synchronized void takeOwnership() {
_ownerCounter++;
}
/** Release ownership */
public synchronized void release()
{
_ownerCounter--;
if (_ownerCounter == 0) {
_afterwards.run();
}
}
}
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