/*
* @(#)$Id$
*
* Copyright 2006-2008 Makoto YUI
*
* 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.
*
* Contributors:
* Makoto YUI - initial implementation
*/
package xbird.util.concurrent.counter;
import org.cliffc.high_scale_lib.ConcurrentAutoTable;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI (yuin405+xbird@gmail.com)
*/
public final class HighScalableIntCounter implements ICounter {
private static final long serialVersionUID = 80493494124020203L;
private final ConcurrentAutoTable _counter;
public HighScalableIntCounter() {
this._counter = new ConcurrentAutoTable();
}
public void add(int x) {
_counter.add(x);
}
public int get() {
return (int) _counter.get();
}
public int estimateGet() {
return (int) _counter.estimate_get();
}
public int getAndAdd(final int x) {
int l = get();
add(x);
return l;
}
public int addAndGet(final int x) {
add(x);
return get();
}
public int incrementAndGet() {
return addAndGet(1);
}
public int decrementAndGet() {
return addAndGet(-1);
}
public int getAndIncrement() {
return getAndAdd(1);
}
public int getAndDecrement() {
return getAndAdd(-1);
}
}