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/**
* Literal
* Copyright 2014 by Michael Peter Christen
* First released 03.08.2014 at http://yacy.net
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.yacy.cora.federate.solr.logic;
public abstract class Literal extends AbstractTerm implements Term {
public Literal() {
}
/**
* the length attribute of a term shows if rewritten terms
* (using rules of replacement as allowed for propositional logic)
* are shorter and therefore more efficient.
* @return the number of operators plus the number of operands plus one
*/
@Override
public int weight() {
return 1;
}
@Override
public Term lightestRewrite() {
return this;
}
}
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