io.logspace.agent.shaded.mchange.v2.encounter.AbstractEncounterCounter Maven / Gradle / Ivy
/*
* Distributed as part of c3p0 v.0.9.1.1
*
* Copyright (C) 2005 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1, as
* published by the Free Software Foundation.
*
* This software 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 software; see the file LICENSE. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package io.logspace.agent.shaded.mchange.v2.encounter;
import java.util.Map;
class AbstractEncounterCounter implements EncounterCounter
{
final static Long ONE = new Long(1);
Map m;
AbstractEncounterCounter(Map m)
{ this.m = m; }
/**
* @return how many times have I seen this object before?
*/
public long encounter(Object o)
{
Long oldLong = (Long) m.get(o);
Long newLong;
long out;
if (oldLong == null)
{
out = 0;
newLong = ONE;
}
else
{
out = oldLong.longValue();
newLong = new Long(out + 1);
}
m.put( o, newLong );
return out;
}
}