/*
* Copyright 2012 Future Systems
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.araqne.logdb.sort;
import java.io.File;
public class ReferenceCountedFile extends File {
private static final long serialVersionUID = 1L;
private int count = 0;
public ReferenceCountedFile(String pathname) {
super(pathname);
}
public ReferenceCountedFile share() {
count++;
return this;
}
@Override
public boolean delete() {
count--;
if (count <= 0)
return super.delete();
return false;
}
@Override
public void deleteOnExit() {
count--;
if (count <= 0)
super.deleteOnExit();
}
}