/*
* Copyright (c) 2013, Søren Atmakuri Davidsen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package fuzzy4j.flc;
import fuzzy4j.sets.FuzzyFunction;
import fuzzy4j.sets.TrapezoidalFunction;
import fuzzy4j.sets.TriangularFunction;
/**
* @author Soren A. Davidsen <soren@atmakuridavidsen.com>
*/
public class Term {
/**
* Construct a term with a triangular apply function.
* @param name
* @param a
* @param b
* @param c
* @return
*/
public static Term term(String name, double a, double b, double c) {
return term(name, new TriangularFunction(a, b, c));
}
/**
* Construct a term with a trapezoidal apply function.
* @param name
* @param a
* @param b
* @param c
* @param d
* @return
*/
public static Term term(String name, double a, double b, double c, double d) {
return term(name, new TrapezoidalFunction(a, b, c, d));
}
/**
* Construct a term with a specified apply function.
* @param name
* @param set
* @return
*/
public static Term term(String name, FuzzyFunction set) {
if (name == null || set == null)
throw new IllegalArgumentException("name and set must be non-null");
return new Term(name, set);
}
public final String name;
public final FuzzyFunction set;
public Term(String name, FuzzyFunction set) {
this.name = name;
this.set = set;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Term term = (Term) o;
if (!name.equals(term.name)) return false;
return true;
}
@Override
public int hashCode() {
return name.hashCode();
}
public String toString() {
return name;
}
}