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package de.lmu.ifi.dbs.elki.database.ids.generic;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2012
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.util.Iterator;
import de.lmu.ifi.dbs.elki.database.ids.DBID;
import de.lmu.ifi.dbs.elki.database.ids.DBIDMIter;
/**
* Iterator for classic collections.
*
* @author Erich Schubert
*/
public class DBIDIterAdapter implements DBIDMIter {
/**
* Current DBID.
*/
DBID cur = null;
/**
* The real iterator.
*/
Iterator<DBID> iter;
/**
* Constructor.
*
* @param iter Iterator
*/
public DBIDIterAdapter(Iterator<DBID> iter) {
super();
this.iter = iter;
advance();
}
@Override
public boolean valid() {
return cur != null;
}
@Override
public void advance() {
if(iter.hasNext()) {
cur = iter.next();
}
else {
cur = null;
}
}
@Override
public int internalGetIndex() {
return cur.internalGetIndex();
}
@Override
public void remove() {
iter.remove();
}
}
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