/* XXL: The eXtensible and fleXible Library for data processing
Copyright (C) 2000-2011 Prof. Dr. Bernhard Seeger
Head of the Database Research Group
Department of Mathematics and Computer Science
University of Marburg
Germany
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; If not, see <http://www.gnu.org/licenses/>.
http://code.google.com/p/xxl/
*/
package xxl.core.cursors.wrappers;
import xxl.core.cursors.Cursor;
import xxl.core.cursors.DecoratorCursor;
public class AutomaticCloseCursor extends DecoratorCursor {
boolean closeWasCalled = false;
public AutomaticCloseCursor(Cursor cursor) {
super(cursor);
}
public void close() {
// do not call close again if it is called below.
if (closeWasCalled) {
cursor.close();
closeWasCalled = true;
}
}
public boolean hasNext() {
boolean hn = cursor.hasNext();
if (!hn) {
cursor.close();
closeWasCalled = true;
}
return hn;
}
}