/**
* 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;
/**
* @author Riccardo Solmi
*/
public class ReachableIterator<E extends IEntity> extends AbstractTransitiveClosureIterator<E> {
protected DistinctScope<E> distinctScope;
protected ReachableIterator(boolean includeSelf, DistinctScope<E> distinctScope) {
super(includeSelf);
this.distinctScope = distinctScope;
}
@Override
protected boolean isRelationNotEmpty(IEntity entity) {
return entity.wAdjacentSize() > 0;
}
@Override
protected IEntityIterator<E> createRelationIterator() {
return IteratorFactory.matcherIterator(
IteratorFactory.<E>adjacentIterator()).withPattern(distinctScope.distinctMatcher());
}
@Override
public void toString(StringBuilder sb) {
sb.append(includeSelf ? "reachableOrSelf()" : "reachable()");
}
}