/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform 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.
*
* The Whole Platform 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 the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.util;
/**
* @author Riccardo Solmi
*/
public class UniqueIdGenerator {
public static UniqueIdGenerator newUniqueIdGenerator(String prefix) {
return newUniqueIdGenerator(prefix, 1);
}
public static UniqueIdGenerator newUniqueIdGenerator(String prefix, long counter) {
return new UniqueIdGenerator(prefix, counter);
}
private final String prefix;
private long counter;
private UniqueIdGenerator(String prefix, long counter) {
this.prefix = prefix;
this.counter = counter;
}
public String next() {
return prefix + counter++; //Long.toHexString(counter++);
}
}