/*
* This program is free software; you can redistribute it and/or modify it under the terms of
* the GNU General Public License as published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package com.meidusa.amoeba.net.poolable.copy;
public class ObjectTimestampPair implements Comparable<ObjectTimestampPair> {
Object value;
long tstamp;
ObjectTimestampPair(Object val) {
this(val, System.currentTimeMillis());
}
ObjectTimestampPair(Object val, long time) {
value = val;
tstamp = time;
}
public String toString() {
return value + ";" + tstamp;
}
public int compareTo(ObjectTimestampPair other) {
final long tstampdiff = this.tstamp - other.tstamp;
if (tstampdiff == 0) {
// make sure the natural ordering is consistent with equals
// see java.lang.Comparable Javadocs
return System.identityHashCode(this) - System.identityHashCode(other);
} else {
// handle int overflow
return (int)Math.min(Math.max(tstampdiff, Integer.MIN_VALUE), Integer.MAX_VALUE);
}
}
}