/**
* 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.iterators;
import org.whole.lang.model.IEntity;
import org.whole.lang.util.EntityUtils;
/**
* @author Riccardo Solmi
*/
public class ParentIterator<E extends IEntity> extends SelfIterator<E> {
@Override
public boolean hasNext() {
return super.hasNext() && EntityUtils.hasParent(entity);
}
@SuppressWarnings("unchecked")
@Override
public E lookahead() {
if (!hasNext())
return null;
return (E) entity.wGetParent();
}
@Override
public void toString(StringBuilder sb) {
sb.append("parent()");
}
}