/**
* 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 FollowingIterator<E extends IEntity> extends AbstractTransitiveClosureIterator<E> {
protected FollowingIterator(boolean includeSelf) {
super(includeSelf);
}
@Override
protected void pushInitialIterators(IEntity entity) {
if (entity == null || !EntityUtils.hasParent(entity))
pushIterator(IteratorFactory.<E>emptyIterator(), entity);
else {
IEntity parent = entity.wGetParent();
pushInitialIterators(parent);
pushIterator(createChildIterator(), entity);
}
}
protected IEntityIterator<E> createChildIterator() {
return includeSelf ? IteratorFactory.<E>followingSiblingOrSelfIterator() :
IteratorFactory.<E>followingSiblingIterator();
}
@Override
public void toString(StringBuilder sb) {
sb.append(includeSelf ? "following-or-self()" : "following()");
}
}