package flintstones.domain.fuzzyset.semantic;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;

import flintstones.domain.fuzzyset.FuzzySet;
import flintstones.domain.fuzzyset.function.FragmentFunction;
import flintstones.domain.numeric.real.NumericRealDomain;
import flintstones.helper.data.wxml.WNode;

@SuppressWarnings("javadoc")
public abstract class IMembershipFunction implements Cloneable, Comparable<IMembershipFunction> {

	public IMembershipFunction() {
	}

	public abstract FragmentFunction toFragmentFunction();

	public abstract boolean isSymmetrical();

	public abstract boolean isSymmetrical(IMembershipFunction other, double center);

	public abstract NumericRealDomain getCenter();

	public abstract NumericRealDomain getCoverage();

	public abstract double getMembershipValue(double x);

	public abstract double centroid();

	public abstract double maxMin(double max, double min);

	public abstract double maxMin(IMembershipFunction function, FuzzySet bltsDomain, FuzzySet valuationDomain);

	@Override
	public abstract Object clone();

	public abstract void write(XMLStreamWriter writer) throws XMLStreamException;

	public abstract void read(WNode node);

	public abstract void setLimits(double[] limits);

}