1 /*
2 * #%L
3 * prolobjectlink-jpi-jlog
4 * %%
5 * Copyright (C) 2019 Prolobjectlink Project
6 * %%
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public
18 * License along with this program. If not, see
19 * <http://www.gnu.org/licenses/gpl-3.0.html>.
20 * #L%
21 */
22 package io.github.prolobjectlink.prolog.jlog;
23
24 import static io.github.prolobjectlink.prolog.PrologTermType.NIL_TYPE;
25
26 import io.github.prolobjectlink.prolog.PrologProvider;
27 import io.github.prolobjectlink.prolog.PrologTerm;
28 import ubc.cs.JLog.Terms.jAtom;
29
30 /**
31 *
32 * @author Jose Zalacain
33 * @since 1.0
34 */
35 final class JLogNil extends JLogTerm implements PrologTerm {
36
37 static final String NIL_STR = "nil";
38
39 protected JLogNil(PrologProvider provider) {
40 super(NIL_TYPE, provider, new jAtom(NIL_STR));
41 }
42
43 public PrologTerm[] getArguments() {
44 return new PrologTerm[0];
45 }
46
47 public int getArity() {
48 return 0;
49 }
50
51 public String getFunctor() {
52 return "" + value + "";
53 }
54
55 }