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/*
* Copyright Dept. of Mathematics & Computer Science Univ. Paris-Descartes
*
* This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited
* liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or
* data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security.
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL license and that you accept its terms.
*/
package pddl4j.exp.fexp;
import pddl4j.exp.term.Term;
/**
* This class implements an numeric function od arity n of the PDDL langage.
*
* @author Damien Pellier
* @version 1.0
*/
public abstract class NArityOp extends OpExp {
/**
* Creates a new arithmetic expression.
*
* @param op the arithmetic operator.
* @throws NullPointerException if <code>op == null</code>.
*/
protected NArityOp(Op op) {
super(op);
}
/**
* Adds a new argument to this function.
*
* @param arg The argument to add.
* @return <code>true</code> if the arg was added; <code>false</code>
* otherwise.
* @throws NullPointerException if <code>arg == null</code>.
*/
public final boolean add(Term arg) {
return super.add(arg);
}
/**
* Returns the argument at the specified position in this function.
*
* @param index index of the argument to return.
* @return the argument at the specified position in this function.
* @throws IndexOutOfBoundsException if the index is out of range
* (<code>index < 0 || index >= getArity()</code>).
*/
public final Term get(int index) {
return super.get(index);
}
/**
* Replaces the argument at the specified position in this function with the
* specified term.
*
* @param index index of the argument to replace.
* @param arg argument to be stored at the specified position.
* @return the argument previously at the specified position.
* @throws IndexOutOfBoundsException if the index is out of range
* (<code>index < 0 || index >= getArity()</code>).
* @throws NullPointerException if <code>arg == null</code>.
*/
public final Term set(int index, Term arg) {
return super.set(index, arg);
}
}
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